Add explain analysis workflow and UI

backend/cli.py

@@ -12,7 +12,7 @@ import os
 import shutil
 import subprocess
 import sys
-from datetime import datetime
+from datetime import datetime, timedelta
 from pathlib import Path
 from typing import Optional
 from zoneinfo import ZoneInfo
@@ -21,18 +21,27 @@ import typer
 from rich.console import Console
 from rich.panel import Panel
 from rich.prompt import Confirm
+from rich.table import Table
+from dotenv import load_dotenv
 
 from backend.agents.prompt_loader import PromptLoader
 from backend.agents.workspace_manager import WorkspaceManager
+from backend.data.market_ingest import ingest_symbols
+from backend.data.market_store import MarketStore
+from backend.enrich.llm_enricher import get_explain_model_info, llm_enrichment_enabled
+from backend.enrich.news_enricher import enrich_symbols
 
 app = typer.Typer(
     name="evotraders",
     help="EvoTraders: A self-evolving multi-agent trading system",
     add_completion=False,
 )
+ingest_app = typer.Typer(help="Ingest Polygon market data into the research warehouse.")
+app.add_typer(ingest_app, name="ingest")
 
 console = Console()
 _prompt_loader = PromptLoader()
+load_dotenv()
 
 
 def get_project_root() -> Path:
@@ -204,6 +213,189 @@ def initialize_workspace(config_name: str) -> Path:
     return workspace_manager.get_run_dir(config_name)
 
 
+def _resolve_symbols(raw_tickers: Optional[str], config_name: Optional[str] = None) -> list[str]:
+    """Resolve symbols from explicit input or runtime bootstrap config."""
+    if raw_tickers and raw_tickers.strip():
+        return [
+            item.strip().upper()
+            for item in raw_tickers.split(",")
+            if item.strip()
+        ]
+
+    workspace_manager = WorkspaceManager(project_root=get_project_root())
+    bootstrap_path = workspace_manager.get_run_dir(config_name or "default") / "BOOTSTRAP.md"
+    if bootstrap_path.exists():
+        content = bootstrap_path.read_text(encoding="utf-8")
+        for line in content.splitlines():
+            if line.strip().startswith("tickers:"):
+                raw = line.split(":", 1)[1]
+                return [
+                    item.strip().upper()
+                    for item in raw.split(",")
+                    if item.strip()
+                ]
+    return []
+
+
+def _filter_problematic_report_rows(rows: list[dict]) -> list[dict]:
+    """Keep tickers with incomplete coverage or without any LLM-enriched rows."""
+    return [
+        row
+        for row in rows
+        if float(row.get("coverage_pct") or 0.0) < 100.0
+        or int(row.get("llm_count") or 0) == 0
+    ]
+
+
+def auto_update_market_store(
+    config_name: str,
+    *,
+    end_date: Optional[str] = None,
+) -> None:
+    """Refresh the long-lived Polygon market store for the active watchlist."""
+    api_key = os.getenv("POLYGON_API_KEY", "").strip()
+    if not api_key:
+        console.print(
+            "[dim]Skipping Polygon market store update: POLYGON_API_KEY not set[/dim]",
+        )
+        return
+
+    symbols = _resolve_symbols(None, config_name)
+    if not symbols:
+        console.print(
+            f"[dim]Skipping Polygon market store update: no tickers found for config '{config_name}'[/dim]",
+        )
+        return
+
+    target_end = end_date or datetime.now().date().isoformat()
+    console.print(
+        f"[cyan]Updating Polygon market store for {', '.join(symbols)} -> {target_end}[/cyan]",
+    )
+
+    try:
+        results = ingest_symbols(
+            symbols,
+            mode="incremental",
+            end_date=target_end,
+        )
+    except Exception as exc:
+        console.print(
+            f"[yellow]Polygon market store update failed, continuing startup: {exc}[/yellow]",
+        )
+        return
+
+    for result in results:
+        console.print(
+            "[green]"
+            f"{result['symbol']}"
+            "[/green] "
+            f"prices={result['prices']} news={result['news']} aligned={result['aligned']}"
+        )
+
+
+def auto_prepare_backtest_market_store(
+    config_name: str,
+    *,
+    start_date: str,
+    end_date: str,
+) -> None:
+    """Ensure the market store has the requested backtest window for the active watchlist."""
+    api_key = os.getenv("POLYGON_API_KEY", "").strip()
+    if not api_key:
+        console.print(
+            "[dim]Skipping Polygon backtest preload: POLYGON_API_KEY not set[/dim]",
+        )
+        return
+
+    symbols = _resolve_symbols(None, config_name)
+    if not symbols:
+        console.print(
+            f"[dim]Skipping Polygon backtest preload: no tickers found for config '{config_name}'[/dim]",
+        )
+        return
+
+    console.print(
+        f"[cyan]Preparing Polygon market store for backtest {start_date} -> {end_date} "
+        f"({', '.join(symbols)})[/cyan]",
+    )
+
+    try:
+        results = ingest_symbols(
+            symbols,
+            mode="full",
+            start_date=start_date,
+            end_date=end_date,
+        )
+    except Exception as exc:
+        console.print(
+            f"[yellow]Polygon backtest preload failed, continuing startup: {exc}[/yellow]",
+        )
+        return
+
+    for result in results:
+        console.print(
+            "[green]"
+            f"{result['symbol']}"
+            "[/green] "
+            f"prices={result['prices']} news={result['news']} aligned={result['aligned']}"
+        )
+
+
+def auto_enrich_market_store(
+    config_name: str,
+    *,
+    end_date: Optional[str] = None,
+    lookback_days: int = 120,
+    force: bool = False,
+) -> None:
+    """Refresh explain-oriented enriched news for the active watchlist."""
+    symbols = _resolve_symbols(None, config_name)
+    if not symbols:
+        console.print(
+            f"[dim]Skipping explain enrich: no tickers found for config '{config_name}'[/dim]",
+        )
+        return
+
+    target_end = end_date or datetime.now().date().isoformat()
+    try:
+        end_dt = datetime.strptime(target_end, "%Y-%m-%d")
+    except ValueError:
+        console.print(
+            f"[yellow]Skipping explain enrich: invalid end date {target_end}[/yellow]",
+        )
+        return
+
+    start_date = (end_dt - timedelta(days=max(1, lookback_days))).date().isoformat()
+    console.print(
+        f"[cyan]Refreshing explain enrich for {', '.join(symbols)} -> {target_end}[/cyan]",
+    )
+    store = MarketStore()
+    try:
+        results = enrich_symbols(
+            store,
+            symbols,
+            start_date=start_date,
+            end_date=target_end,
+            limit=300,
+            skip_existing=not force,
+        )
+    except Exception as exc:
+        console.print(
+            f"[yellow]Explain enrich failed, continuing startup: {exc}[/yellow]",
+        )
+        return
+
+    for result in results:
+        console.print(
+            "[green]"
+            f"{result['symbol']}"
+            "[/green] "
+            f"news={result['news_count']} queued={result['queued_count']} analyzed={result['analyzed']} "
+            f"skipped={result['skipped_existing_count']} deduped={result['deduped_count']} "
+            f"llm={result['llm_count']} local={result['local_count']}"
+        )
+
+
 @app.command("init-workspace")
 def init_workspace(
     config_name: str = typer.Option(
@@ -223,6 +415,213 @@ def init_workspace(
     )
 
 
+@ingest_app.command("full")
+def ingest_full(
+    tickers: Optional[str] = typer.Option(
+        None,
+        "--tickers",
+        "-t",
+        help="Comma-separated tickers to ingest",
+    ),
+    start: Optional[str] = typer.Option(
+        None,
+        "--start",
+        help="Start date for full ingestion (YYYY-MM-DD)",
+    ),
+    end: Optional[str] = typer.Option(
+        None,
+        "--end",
+        help="End date for ingestion (YYYY-MM-DD)",
+    ),
+    config_name: str = typer.Option(
+        "default",
+        "--config-name",
+        "-c",
+        help="Fallback config to read tickers from BOOTSTRAP.md",
+    ),
+):
+    """Run full Polygon ingestion for the specified symbols."""
+    symbols = _resolve_symbols(tickers, config_name)
+    if not symbols:
+        console.print("[red]No tickers provided and none found in BOOTSTRAP.md[/red]")
+        raise typer.Exit(1)
+
+    console.print(f"[cyan]Starting full Polygon ingest for {', '.join(symbols)}[/cyan]")
+    results = ingest_symbols(symbols, mode="full", start_date=start, end_date=end)
+    for result in results:
+        console.print(
+            f"[green]{result['symbol']}[/green] prices={result['prices']} news={result['news']} aligned={result['aligned']}"
+        )
+
+
+@ingest_app.command("update")
+def ingest_update(
+    tickers: Optional[str] = typer.Option(
+        None,
+        "--tickers",
+        "-t",
+        help="Comma-separated tickers to update",
+    ),
+    end: Optional[str] = typer.Option(
+        None,
+        "--end",
+        help="Optional end date override (YYYY-MM-DD)",
+    ),
+    config_name: str = typer.Option(
+        "default",
+        "--config-name",
+        "-c",
+        help="Fallback config to read tickers from BOOTSTRAP.md",
+    ),
+):
+    """Run incremental Polygon ingestion using stored watermarks."""
+    symbols = _resolve_symbols(tickers, config_name)
+    if not symbols:
+        console.print("[red]No tickers provided and none found in BOOTSTRAP.md[/red]")
+        raise typer.Exit(1)
+
+    console.print(f"[cyan]Starting incremental Polygon ingest for {', '.join(symbols)}[/cyan]")
+    results = ingest_symbols(symbols, mode="incremental", end_date=end)
+    for result in results:
+        console.print(
+            f"[green]{result['symbol']}[/green] prices={result['prices']} news={result['news']} aligned={result['aligned']}"
+        )
+
+
+@ingest_app.command("enrich")
+def ingest_enrich(
+    tickers: Optional[str] = typer.Option(
+        None,
+        "--tickers",
+        "-t",
+        help="Comma-separated tickers to enrich",
+    ),
+    start: Optional[str] = typer.Option(
+        None,
+        "--start",
+        help="Optional start date for enrichment window (YYYY-MM-DD)",
+    ),
+    end: Optional[str] = typer.Option(
+        None,
+        "--end",
+        help="Optional end date for enrichment window (YYYY-MM-DD)",
+    ),
+    limit: int = typer.Option(
+        300,
+        "--limit",
+        help="Maximum raw news rows per ticker to analyze",
+    ),
+    force: bool = typer.Option(
+        False,
+        "--force",
+        help="Re-analyze already enriched news instead of only missing rows",
+    ),
+    config_name: str = typer.Option(
+        "default",
+        "--config-name",
+        "-c",
+        help="Fallback config to read tickers from BOOTSTRAP.md",
+    ),
+):
+    """Run explain-oriented news enrichment for symbols already in the market store."""
+    symbols = _resolve_symbols(tickers, config_name)
+    if not symbols:
+        console.print("[red]No tickers provided and none found in BOOTSTRAP.md[/red]")
+        raise typer.Exit(1)
+
+    console.print(f"[cyan]Starting explain enrich for {', '.join(symbols)}[/cyan]")
+    store = MarketStore()
+    results = enrich_symbols(
+        store,
+        symbols,
+        start_date=start,
+        end_date=end,
+        limit=max(10, limit),
+        skip_existing=not force,
+    )
+    for result in results:
+        console.print(
+            f"[green]{result['symbol']}[/green] "
+            f"news={result['news_count']} queued={result['queued_count']} analyzed={result['analyzed']} "
+            f"skipped={result['skipped_existing_count']} deduped={result['deduped_count']} "
+            f"llm={result['llm_count']} local={result['local_count']}"
+        )
+
+
+@ingest_app.command("report")
+def ingest_report(
+    tickers: Optional[str] = typer.Option(
+        None,
+        "--tickers",
+        "-t",
+        help="Optional comma-separated tickers to report",
+    ),
+    start: Optional[str] = typer.Option(
+        None,
+        "--start",
+        help="Optional start date for report window (YYYY-MM-DD)",
+    ),
+    end: Optional[str] = typer.Option(
+        None,
+        "--end",
+        help="Optional end date for report window (YYYY-MM-DD)",
+    ),
+    config_name: str = typer.Option(
+        "default",
+        "--config-name",
+        "-c",
+        help="Fallback config to read tickers from BOOTSTRAP.md",
+    ),
+    only_problematic: bool = typer.Option(
+        False,
+        "--only-problematic",
+        help="Only show tickers with incomplete coverage or no LLM-enriched news",
+    ),
+):
+    """Show explain enrichment coverage and freshness per ticker."""
+    symbols = _resolve_symbols(tickers, config_name)
+    store = MarketStore()
+    report_rows = store.get_enrich_report(
+        symbols=symbols or None,
+        start_date=start,
+        end_date=end,
+    )
+    if only_problematic:
+        report_rows = _filter_problematic_report_rows(report_rows)
+    if not report_rows:
+        if only_problematic:
+            console.print("[green]No problematic enrich report rows found for the requested scope[/green]")
+        else:
+            console.print("[yellow]No enrich report rows found for the requested scope[/yellow]")
+        raise typer.Exit(0)
+
+    model_info = get_explain_model_info()
+    model_label = model_info["label"] if llm_enrichment_enabled() else "disabled"
+    table = Table(title="Explain Enrichment Report")
+    table.add_column("Ticker", style="cyan")
+    table.add_column("Raw News", justify="right")
+    table.add_column("Analyzed", justify="right")
+    table.add_column("Coverage", justify="right")
+    table.add_column("LLM", justify="right")
+    table.add_column("Local", justify="right")
+    table.add_column("Latest Trade Date")
+    table.add_column("Latest Analysis")
+    table.caption = f"Explain LLM: {model_label}"
+
+    for row in report_rows:
+        table.add_row(
+            row["symbol"],
+            str(row["raw_news_count"]),
+            str(row["analyzed_news_count"]),
+            f'{row["coverage_pct"]:.1f}%',
+            str(row["llm_count"]),
+            str(row["local_count"]),
+            str(row["latest_trade_date"] or "-"),
+            str(row["latest_analysis_at"] or "-"),
+        )
+    console.print(table)
+
+
 @app.command()
 def backtest(
     start: Optional[str] = typer.Option(
@@ -331,6 +730,16 @@ def backtest(
 
     # Run data updater
     run_data_updater(project_root)
+    auto_prepare_backtest_market_store(
+        config_name,
+        start_date=start,
+        end_date=end,
+    )
+    auto_enrich_market_store(
+        config_name,
+        end_date=end,
+        force=False,
+    )
 
     # Build command using backend.main
     cmd = [
@@ -514,6 +923,15 @@ def live(
     # Data update (if not mock mode)
     if not mock:
         run_data_updater(project_root)
+        auto_update_market_store(
+            config_name,
+            end_date=nyse_now.date().isoformat(),
+        )
+        auto_enrich_market_store(
+            config_name,
+            end_date=nyse_now.date().isoformat(),
+            force=False,
+        )
     else:
         console.print(
             "\n[dim]Mock mode enabled - skipping data update[/dim]\n",

backend/core/state_sync.py

@@ -47,6 +47,10 @@ class StateSync:
         """Set current simulation date for backtest-compatible timestamps"""
         self._simulation_date = date
 
+    def clear_simulation_date(self):
+        """Disable backtest timestamp simulation and use wall-clock time."""
+        self._simulation_date = None
+
     def _get_timestamp_ms(self) -> int:
         """
         Get timestamp in milliseconds.
@@ -97,12 +101,24 @@ class StateSync:
         if not self._enabled:
             return
 
-        # Ensure timestamp exists (use simulation date if in backtest mode)
+        # Ensure timestamp exists. Prefer explicit millisecond timestamps so
+        # frontend displays local wall time correctly instead of date-only UTC.
         if "timestamp" not in event:
+            ts_ms = event.get("ts")
+            if ts_ms is not None:
+                try:
+                    event["timestamp"] = datetime.fromtimestamp(
+                        float(ts_ms) / 1000.0,
+                    ).isoformat()
+                except (TypeError, ValueError, OSError):
                     if self._simulation_date:
                         event["timestamp"] = f"{self._simulation_date}"
                     else:
                         event["timestamp"] = datetime.now().isoformat()
+            elif self._simulation_date:
+                event["timestamp"] = f"{self._simulation_date}"
+            else:
+                event["timestamp"] = datetime.now().isoformat()
 
         # Persist to feed_history
         if persist:
@@ -238,9 +254,12 @@ class StateSync:
         """Called at start of trading cycle"""
         self._state["current_date"] = date
         self._state["status"] = "running"
+        if self._state.get("server_mode") == "backtest":
             self.set_simulation_date(
                 date,
             )  # Set for backtest-compatible timestamps
+        else:
+            self.clear_simulation_date()
 
         await self.emit(
             {

backend/data/historical_price_manager.py

@@ -7,6 +7,7 @@ from datetime import datetime
 from typing import Callable, Dict, List, Optional
 
 import pandas as pd
+from backend.data.market_store import MarketStore
 from backend.data.provider_utils import normalize_symbol
 from backend.data.provider_router import get_provider_router
 
@@ -26,6 +27,7 @@ class HistoricalPriceManager:
         self.close_prices = {}
         self.running = False
         self._router = get_provider_router()
+        self._market_store = MarketStore()
 
     def subscribe(
         self,
@@ -58,21 +60,48 @@ class HistoricalPriceManager:
             logger.warning(f"Failed to load CSV for {symbol}: {e}")
             return None
 
+    def _load_from_market_db(
+        self,
+        symbol: str,
+        start_date: str,
+        end_date: str,
+    ) -> Optional[pd.DataFrame]:
+        """Load price data from the long-lived market research database."""
+        try:
+            rows = self._market_store.get_ohlc(symbol, start_date, end_date)
+            if not rows:
+                return None
+            df = pd.DataFrame(rows)
+            if df.empty or "date" not in df.columns:
+                return None
+            df["Date"] = pd.to_datetime(df["date"])
+            df.set_index("Date", inplace=True)
+            df.sort_index(inplace=True)
+            return df
+        except Exception as e:
+            logger.warning(f"Failed to load market DB data for {symbol}: {e}")
+            return None
+
     def preload_data(self, start_date: str, end_date: str):
-        """Preload historical data from local CSV files."""
+        """Preload historical data from market DB first, then local CSV."""
         logger.info(f"Preloading data: {start_date} to {end_date}")
 
         for symbol in self.subscribed_symbols:
             if symbol in self._price_cache:
                 continue
 
-            # Load from local CSV file directly
+            df = self._load_from_market_db(symbol, start_date, end_date)
+            if df is not None and not df.empty:
+                self._price_cache[symbol] = df
+                logger.info(f"Loaded {symbol} from market DB: {len(df)} records")
+                continue
+
             df = self._load_from_csv(symbol)
             if df is not None and not df.empty:
                 self._price_cache[symbol] = df
                 logger.info(f"Loaded {symbol} from CSV: {len(df)} records")
             else:
-                logger.warning(f"No CSV data for {symbol}")
+                logger.warning(f"No market DB or CSV data for {symbol}")
 
     def set_date(self, date: str):
         """Set current trading date and update prices"""

backend/data/market_ingest.py

@@ -0,0 +1,149 @@
+# -*- coding: utf-8 -*-
+"""Ingest Polygon market data into the long-lived research warehouse."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+from typing import Iterable
+
+from backend.data.market_store import MarketStore
+from backend.data.news_alignment import align_news_for_symbol
+from backend.data.polygon_client import (
+    fetch_news,
+    fetch_ohlc,
+    fetch_ticker_details,
+)
+from backend.data.provider_utils import normalize_symbol
+
+
+def _today_utc() -> str:
+    return datetime.now(timezone.utc).date().isoformat()
+
+
+def _default_start(years: int = 2) -> str:
+    return (datetime.now(timezone.utc).date() - timedelta(days=years * 366)).isoformat()
+
+
+def ingest_ticker_history(
+    symbol: str,
+    *,
+    start_date: str | None = None,
+    end_date: str | None = None,
+    store: MarketStore | None = None,
+) -> dict:
+    """Fetch and persist Polygon OHLC + news for a ticker."""
+    ticker = normalize_symbol(symbol)
+    start = start_date or _default_start()
+    end = end_date or _today_utc()
+    market_store = store or MarketStore()
+
+    details = fetch_ticker_details(ticker)
+    market_store.upsert_ticker(
+        symbol=ticker,
+        name=details.get("name"),
+        sector=details.get("sic_description"),
+        is_active=bool(details.get("active", True)),
+    )
+
+    ohlc_rows = fetch_ohlc(ticker, start, end)
+    news_rows = fetch_news(ticker, start, end)
+    price_count = market_store.upsert_ohlc(ticker, ohlc_rows, source="polygon")
+    news_count = market_store.upsert_news(ticker, news_rows, source="polygon")
+    aligned_count = align_news_for_symbol(market_store, ticker)
+    market_store.update_fetch_watermark(symbol=ticker, price_date=end, news_date=end)
+
+    return {
+        "symbol": ticker,
+        "start_date": start,
+        "end_date": end,
+        "prices": price_count,
+        "news": news_count,
+        "aligned": aligned_count,
+    }
+
+
+def update_ticker_incremental(
+    symbol: str,
+    *,
+    end_date: str | None = None,
+    store: MarketStore | None = None,
+) -> dict:
+    """Incrementally fetch OHLC + news since the last watermark."""
+    ticker = normalize_symbol(symbol)
+    market_store = store or MarketStore()
+    watermarks = market_store.get_ticker_watermarks(ticker)
+    end = end_date or _today_utc()
+    start_prices = (
+        (datetime.fromisoformat(watermarks["last_price_fetch"]) + timedelta(days=1)).date().isoformat()
+        if watermarks.get("last_price_fetch")
+        else _default_start()
+    )
+    start_news = (
+        (datetime.fromisoformat(watermarks["last_news_fetch"]) + timedelta(days=1)).date().isoformat()
+        if watermarks.get("last_news_fetch")
+        else _default_start()
+    )
+
+    details = fetch_ticker_details(ticker)
+    market_store.upsert_ticker(
+        symbol=ticker,
+        name=details.get("name"),
+        sector=details.get("sic_description"),
+        is_active=bool(details.get("active", True)),
+    )
+
+    ohlc_rows = [] if start_prices > end else fetch_ohlc(ticker, start_prices, end)
+    news_rows = [] if start_news > end else fetch_news(ticker, start_news, end)
+    price_count = market_store.upsert_ohlc(ticker, ohlc_rows, source="polygon") if ohlc_rows else 0
+    news_count = market_store.upsert_news(ticker, news_rows, source="polygon") if news_rows else 0
+    aligned_count = align_news_for_symbol(market_store, ticker)
+    market_store.update_fetch_watermark(
+        symbol=ticker,
+        price_date=end if ohlc_rows or watermarks.get("last_price_fetch") else None,
+        news_date=end if news_rows or watermarks.get("last_news_fetch") else None,
+    )
+
+    return {
+        "symbol": ticker,
+        "start_price_date": start_prices,
+        "start_news_date": start_news,
+        "end_date": end,
+        "prices": price_count,
+        "news": news_count,
+        "aligned": aligned_count,
+    }
+
+
+def ingest_symbols(
+    symbols: Iterable[str],
+    *,
+    mode: str = "incremental",
+    start_date: str | None = None,
+    end_date: str | None = None,
+    store: MarketStore | None = None,
+) -> list[dict]:
+    """Fetch Polygon data for a list of tickers."""
+    market_store = store or MarketStore()
+    results = []
+    for symbol in symbols:
+        ticker = normalize_symbol(symbol)
+        if not ticker:
+            continue
+        if mode == "full":
+            results.append(
+                ingest_ticker_history(
+                    ticker,
+                    start_date=start_date,
+                    end_date=end_date,
+                    store=market_store,
+                )
+            )
+        else:
+            results.append(
+                update_ticker_incremental(
+                    ticker,
+                    end_date=end_date,
+                    store=market_store,
+                )
+            )
+    return results

backend/data/news_alignment.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+"""Align persisted news to the nearest NYSE trading date."""
+
+from __future__ import annotations
+
+from datetime import time
+
+import pandas as pd
+import pandas_market_calendars as mcal
+
+from backend.data.market_store import MarketStore
+
+
+NYSE_CALENDAR = mcal.get_calendar("NYSE")
+
+
+def _next_trading_day(date_str: str) -> str:
+    start = pd.Timestamp(date_str).tz_localize(None)
+    sessions = NYSE_CALENDAR.valid_days(
+        start_date=(start - pd.Timedelta(days=1)).strftime("%Y-%m-%d"),
+        end_date=(start + pd.Timedelta(days=10)).strftime("%Y-%m-%d"),
+    )
+    future = [
+        pd.Timestamp(day).tz_localize(None).strftime("%Y-%m-%d")
+        for day in sessions
+        if pd.Timestamp(day).tz_localize(None) >= start
+    ]
+    return future[0] if future else date_str
+
+
+def resolve_trade_date(published_utc: str | None) -> str | None:
+    """Map a published timestamp to an NYSE trade date."""
+    if not published_utc:
+        return None
+    timestamp = pd.to_datetime(published_utc, utc=True, errors="coerce")
+    if pd.isna(timestamp):
+        return None
+    nyse_time = timestamp.tz_convert("America/New_York")
+    candidate = nyse_time.date().isoformat()
+    valid_days = NYSE_CALENDAR.valid_days(start_date=candidate, end_date=candidate)
+    if len(valid_days) == 0:
+        return _next_trading_day(candidate)
+    if nyse_time.time() >= time(16, 0):
+        return _next_trading_day((nyse_time + pd.Timedelta(days=1)).date().isoformat())
+    return candidate
+
+
+def align_news_for_symbol(store: MarketStore, symbol: str, *, limit: int = 5000) -> int:
+    """Fill missing trade_date values for one ticker."""
+    pending = store.get_news_without_trade_date(symbol, limit=limit)
+    updates = []
+    for row in pending:
+        trade_date = resolve_trade_date(row.get("published_utc"))
+        if trade_date:
+            updates.append(
+                {
+                    "news_id": row["news_id"],
+                    "symbol": row["symbol"],
+                    "trade_date": trade_date,
+                }
+            )
+    if not updates:
+        return 0
+    return store.set_trade_dates(updates)

backend/data/polygon_client.py

@@ -0,0 +1,161 @@
+# -*- coding: utf-8 -*-
+"""Polygon client used for long-lived market research ingestion."""
+
+from __future__ import annotations
+
+import os
+import time
+from datetime import datetime, timezone
+from typing import Any, Optional
+
+import requests
+
+
+BASE = "https://api.polygon.io"
+
+
+def _headers() -> dict[str, str]:
+    api_key = os.getenv("POLYGON_API_KEY", "").strip()
+    if not api_key:
+        raise ValueError("Missing required API key: POLYGON_API_KEY")
+    return {"Authorization": f"Bearer {api_key}"}
+
+
+def http_get(
+    url: str,
+    params: Optional[dict[str, Any]] = None,
+    *,
+    max_retries: int = 8,
+    backoff: float = 2.0,
+) -> requests.Response:
+    """HTTP GET with exponential backoff and 429 handling."""
+    for attempt in range(max_retries):
+        try:
+            response = requests.get(
+                url,
+                params=params or {},
+                headers=_headers(),
+                timeout=30,
+            )
+        except requests.RequestException:
+            time.sleep((backoff**attempt) + 0.5)
+            if attempt == max_retries - 1:
+                raise
+            continue
+
+        if response.status_code == 429:
+            retry_after = response.headers.get("Retry-After")
+            wait = (
+                float(retry_after)
+                if retry_after and retry_after.isdigit()
+                else min((backoff**attempt) + 1.0, 60.0)
+            )
+            time.sleep(wait)
+            if attempt == max_retries - 1:
+                response.raise_for_status()
+            continue
+
+        if 500 <= response.status_code < 600:
+            time.sleep(min((backoff**attempt) + 1.0, 60.0))
+            if attempt == max_retries - 1:
+                response.raise_for_status()
+            continue
+
+        response.raise_for_status()
+        return response
+    raise RuntimeError("Unreachable")
+
+
+def fetch_ticker_details(symbol: str) -> dict[str, Any]:
+    """Fetch company metadata from Polygon."""
+    response = http_get(f"{BASE}/v3/reference/tickers/{symbol}")
+    return response.json().get("results", {}) or {}
+
+
+def fetch_ohlc(symbol: str, start_date: str, end_date: str) -> list[dict[str, Any]]:
+    """Fetch daily OHLC data from Polygon."""
+    response = http_get(
+        f"{BASE}/v2/aggs/ticker/{symbol}/range/1/day/{start_date}/{end_date}",
+        params={"adjusted": "true", "sort": "asc", "limit": 50000},
+    )
+    results = response.json().get("results") or []
+    rows: list[dict[str, Any]] = []
+    for item in results:
+        rows.append(
+            {
+                "date": datetime.fromtimestamp(
+                    int(item["t"]) / 1000,
+                    tz=timezone.utc,
+                ).date().isoformat(),
+                "open": item.get("o"),
+                "high": item.get("h"),
+                "low": item.get("l"),
+                "close": item.get("c"),
+                "volume": item.get("v"),
+                "vwap": item.get("vw"),
+                "transactions": item.get("n"),
+            }
+        )
+    return rows
+
+
+def fetch_news(
+    symbol: str,
+    start_date: str,
+    end_date: str,
+    *,
+    per_page: int = 50,
+    page_sleep: float = 1.2,
+    max_pages: Optional[int] = None,
+) -> list[dict[str, Any]]:
+    """Fetch all Polygon news for a ticker, with pagination."""
+    url = f"{BASE}/v2/reference/news"
+    params = {
+        "ticker": symbol,
+        "published_utc.gte": start_date,
+        "published_utc.lte": end_date,
+        "limit": per_page,
+        "order": "asc",
+    }
+    next_url: Optional[str] = None
+    pages = 0
+    all_articles: list[dict[str, Any]] = []
+    seen_ids: set[str] = set()
+
+    while True:
+        response = http_get(next_url or url, params=None if next_url else params)
+        data = response.json()
+        results = data.get("results") or []
+        if not results:
+            break
+
+        for item in results:
+            article_id = item.get("id")
+            if article_id and article_id in seen_ids:
+                continue
+            all_articles.append(
+                {
+                    "id": article_id,
+                    "publisher": (item.get("publisher") or {}).get("name"),
+                    "title": item.get("title"),
+                    "author": item.get("author"),
+                    "published_utc": item.get("published_utc"),
+                    "amp_url": item.get("amp_url"),
+                    "article_url": item.get("article_url"),
+                    "tickers": item.get("tickers"),
+                    "description": item.get("description"),
+                    "insights": item.get("insights"),
+                }
+            )
+            if article_id:
+                seen_ids.add(article_id)
+
+        next_url = data.get("next_url")
+        pages += 1
+        if max_pages is not None and pages >= max_pages:
+            break
+        if not next_url:
+            break
+        time.sleep(page_sleep)
+
+    return all_articles

backend/enrich/__init__.py

@@ -0,0 +1,2 @@
+"""News enrichment utilities for explain-oriented market research."""
+

backend/enrich/llm_enricher.py

@@ -0,0 +1,296 @@
+# -*- coding: utf-8 -*-
+"""Optional AgentScope-backed news enrichment with safe local fallback."""
+
+from __future__ import annotations
+
+import asyncio
+from concurrent.futures import ThreadPoolExecutor
+from typing import Any
+
+from pydantic import BaseModel, Field
+
+from backend.config.env_config import canonicalize_model_provider, get_env_bool, get_env_str
+from backend.llm.models import create_model
+
+
+class EnrichedNewsItem(BaseModel):
+    """Structured output schema for one enriched article."""
+
+    id: str = Field(description="The source article id")
+    relevance: str = Field(description="One of high, medium, low")
+    sentiment: str = Field(description="One of positive, negative, neutral")
+    key_discussion: str = Field(description="Concise core discussion")
+    summary: str = Field(description="Concise factual summary")
+    reason_growth: str = Field(description="Growth-oriented reason if present")
+    reason_decrease: str = Field(description="Downside-oriented reason if present")
+
+
+class EnrichedNewsBatch(BaseModel):
+    """Structured output schema for a batch of enriched articles."""
+
+    items: list[EnrichedNewsItem]
+
+
+class RangeAnalysisPayload(BaseModel):
+    """Structured output schema for range explanation text."""
+
+    summary: str = Field(description="Concise Chinese range summary for the selected window")
+    trend_analysis: str = Field(description="Concise Chinese trend explanation for the selected window")
+    bullish_factors: list[str] = Field(description="Top bullish factors in Chinese")
+    bearish_factors: list[str] = Field(description="Top bearish factors in Chinese")
+
+
+def get_explain_model_info() -> dict[str, str]:
+    """Resolve provider/model used by explain enrichment."""
+    provider = canonicalize_model_provider(
+        get_env_str("EXPLAIN_ENRICH_MODEL_PROVIDER")
+        or get_env_str("MODEL_PROVIDER", "OPENAI"),
+    )
+    model_name = get_env_str("EXPLAIN_ENRICH_MODEL_NAME") or get_env_str(
+        "MODEL_NAME",
+        "gpt-4o-mini",
+    )
+    return {
+        "provider": provider,
+        "model_name": model_name,
+        "label": f"{provider}:{model_name}",
+    }
+
+
+def _normalize_enrichment_payload(payload: Any) -> dict[str, Any] | None:
+    if isinstance(payload, BaseModel):
+        payload = payload.model_dump()
+    if not isinstance(payload, dict):
+        return None
+    return {
+        "relevance": str(payload.get("relevance") or "").strip().lower() or None,
+        "sentiment": str(payload.get("sentiment") or "").strip().lower() or None,
+        "key_discussion": str(payload.get("key_discussion") or "").strip() or None,
+        "summary": str(payload.get("summary") or "").strip() or None,
+        "reason_growth": str(payload.get("reason_growth") or "").strip() or None,
+        "reason_decrease": str(payload.get("reason_decrease") or "").strip() or None,
+        "raw_json": payload,
+    }
+
+
+def _run_async(coro: Any) -> Any:
+    """Run an async AgentScope model call from sync code, even inside a running loop."""
+    try:
+        asyncio.get_running_loop()
+    except RuntimeError:
+        return asyncio.run(coro)
+
+    with ThreadPoolExecutor(max_workers=1) as executor:
+        future = executor.submit(asyncio.run, coro)
+        return future.result()
+
+
+def _get_explain_model():
+    """Create an AgentScope model for explain enrichment."""
+    model_info = get_explain_model_info()
+    return create_model(
+        model_name=model_info["model_name"],
+        provider=model_info["provider"],
+        stream=False,
+        generate_kwargs={"temperature": 0.1},
+    )
+
+
+def llm_enrichment_enabled() -> bool:
+    """Return whether AgentScope-backed LLM enrichment should be attempted."""
+    if not get_env_bool("EXPLAIN_ENRICH_USE_LLM", False):
+        return False
+    provider = get_explain_model_info()["provider"]
+    provider_key_map = {
+        "OPENAI": "OPENAI_API_KEY",
+        "ANTHROPIC": "ANTHROPIC_API_KEY",
+        "DASHSCOPE": "DASHSCOPE_API_KEY",
+        "ALIBABA": "DASHSCOPE_API_KEY",
+        "GEMINI": "GOOGLE_API_KEY",
+        "GOOGLE": "GOOGLE_API_KEY",
+        "DEEPSEEK": "DEEPSEEK_API_KEY",
+        "GROQ": "GROQ_API_KEY",
+        "OPENROUTER": "OPENROUTER_API_KEY",
+    }
+    env_key = provider_key_map.get(provider)
+    return bool(get_env_str(env_key)) if env_key else provider == "OLLAMA"
+
+
+def llm_range_analysis_enabled() -> bool:
+    """Return whether LLM range analysis should be attempted."""
+    raw_value = get_env_str("EXPLAIN_RANGE_USE_LLM")
+    if raw_value is not None and str(raw_value).strip() != "":
+        return get_env_bool("EXPLAIN_RANGE_USE_LLM", False) and llm_enrichment_enabled()
+    return llm_enrichment_enabled()
+
+
+def analyze_news_row_with_llm(row: dict[str, Any]) -> dict[str, Any] | None:
+    """Generate explain-oriented structured analysis for one article."""
+    if not llm_enrichment_enabled():
+        return None
+
+    model = _get_explain_model()
+    title = str(row.get("title") or "").strip()
+    summary = str(row.get("summary") or "").strip()
+    messages = [
+        {
+            "role": "system",
+            "content": (
+                "You produce concise structured financial news analysis. "
+                "Use only the requested fields and keep content factual."
+            ),
+        },
+        {
+            "role": "user",
+            "content": (
+                "Analyze this stock-news article for an explain UI.\n"
+                "Rules:\n"
+                "- relevance must be one of: high, medium, low\n"
+                "- sentiment must be one of: positive, negative, neutral\n"
+                "- keep each text field concise and factual\n"
+                f"- article id: {str(row.get('id') or '').strip()}\n"
+                f"Title: {title}\n"
+                f"Summary: {summary}\n"
+            ),
+        },
+    ]
+    try:
+        response = _run_async(model(messages=messages, structured_model=EnrichedNewsItem))
+    except Exception:
+        return None
+
+    payload = _normalize_enrichment_payload(getattr(response, "metadata", None))
+    if payload:
+        payload.setdefault("raw_json", {})
+        payload["raw_json"]["model_provider"] = get_explain_model_info()["provider"]
+        payload["raw_json"]["model_name"] = get_explain_model_info()["model_name"]
+        payload["raw_json"]["model_label"] = get_explain_model_info()["label"]
+    return payload
+
+
+def analyze_news_rows_with_llm(rows: list[dict[str, Any]]) -> dict[str, dict[str, Any]]:
+    """Generate structured analysis for multiple articles in one request."""
+    if not llm_enrichment_enabled() or not rows:
+        return {}
+
+    payload_rows = [
+        {
+            "id": str(row.get("id") or "").strip(),
+            "title": str(row.get("title") or "").strip(),
+            "summary": str(row.get("summary") or "").strip(),
+        }
+        for row in rows
+        if str(row.get("id") or "").strip()
+    ]
+    if not payload_rows:
+        return {}
+
+    model = _get_explain_model()
+    messages = [
+        {
+            "role": "system",
+            "content": (
+                "You produce concise structured financial news analysis in JSON. "
+                "Preserve ids exactly and do not invent extra items."
+            ),
+        },
+        {
+            "role": "user",
+            "content": (
+                "Analyze these stock-news articles for an explain UI.\n"
+                "For each item return: id, relevance, sentiment, key_discussion, summary, "
+                "reason_growth, reason_decrease.\n"
+                "Rules:\n"
+                "- relevance must be one of: high, medium, low\n"
+                "- sentiment must be one of: positive, negative, neutral\n"
+                "- keep all text concise and factual\n"
+                f"Articles: {payload_rows}"
+            ),
+        },
+    ]
+    try:
+        response = _run_async(
+            model(messages=messages, structured_model=EnrichedNewsBatch),
+        )
+    except Exception:
+        return {}
+
+    metadata = getattr(response, "metadata", None)
+    if isinstance(metadata, BaseModel):
+        metadata = metadata.model_dump()
+    items = metadata.get("items") if isinstance(metadata, dict) else None
+    if not isinstance(items, list):
+        return {}
+
+    results: dict[str, dict[str, Any]] = {}
+    for item in items:
+        normalized = _normalize_enrichment_payload(item)
+        news_id = str((item.model_dump() if isinstance(item, BaseModel) else item).get("id") or "").strip() if isinstance(item, (dict, BaseModel)) else ""
+        if normalized and news_id:
+            normalized.setdefault("raw_json", {})
+            normalized["raw_json"]["model_provider"] = get_explain_model_info()["provider"]
+            normalized["raw_json"]["model_name"] = get_explain_model_info()["model_name"]
+            normalized["raw_json"]["model_label"] = get_explain_model_info()["label"]
+            results[news_id] = normalized
+    return results
+
+
+def analyze_range_with_llm(payload: dict[str, Any]) -> dict[str, Any] | None:
+    """Generate explain-oriented range summary and factor refinement."""
+    if not llm_range_analysis_enabled():
+        return None
+
+    model = _get_explain_model()
+    messages = [
+        {
+            "role": "system",
+            "content": (
+                "You write concise Chinese stock range analysis for an explain UI. "
+                "Use only the supplied facts. Keep the tone factual and analyst-like."
+            ),
+        },
+        {
+            "role": "user",
+            "content": (
+                "请基于给定事实生成区间分析。\n"
+                "输出字段：summary, trend_analysis, bullish_factors, bearish_factors。\n"
+                "要求：\n"
+                "- 全部使用简体中文\n"
+                "- summary 1到2句，概括区间走势、新闻密度和主导主题\n"
+                "- trend_analysis 1句，解释区间内部阶段变化\n"
+                "- bullish_factors 和 bearish_factors 各返回最多3条短句\n"
+                "- 不要编造未提供的信息\n"
+                f"事实数据: {payload}"
+            ),
+        },
+    ]
+    try:
+        response = _run_async(
+            model(messages=messages, structured_model=RangeAnalysisPayload),
+        )
+    except Exception:
+        return None
+
+    metadata = getattr(response, "metadata", None)
+    if isinstance(metadata, BaseModel):
+        metadata = metadata.model_dump()
+    if not isinstance(metadata, dict):
+        return None
+
+    return {
+        "summary": str(metadata.get("summary") or "").strip() or None,
+        "trend_analysis": str(metadata.get("trend_analysis") or "").strip() or None,
+        "bullish_factors": [
+            str(item).strip()
+            for item in list(metadata.get("bullish_factors") or [])
+            if str(item).strip()
+        ][:3],
+        "bearish_factors": [
+            str(item).strip()
+            for item in list(metadata.get("bearish_factors") or [])
+            if str(item).strip()
+        ][:3],
+        "model_provider": get_explain_model_info()["provider"],
+        "model_name": get_explain_model_info()["model_name"],
+        "model_label": get_explain_model_info()["label"],
+    }

backend/enrich/news_enricher.py

@@ -0,0 +1,362 @@
+# -*- coding: utf-8 -*-
+"""Lightweight news enrichment for explain-oriented market analysis."""
+
+from __future__ import annotations
+
+import hashlib
+from typing import Any
+
+from backend.config.env_config import get_env_int
+from backend.enrich.llm_enricher import (
+    analyze_news_row_with_llm,
+    analyze_news_rows_with_llm,
+    llm_enrichment_enabled,
+)
+from backend.data.market_store import MarketStore
+
+
+POSITIVE_KEYWORDS = (
+    "beat", "surge", "gain", "growth", "record", "upgrade", "strong",
+    "partnership", "approved", "launch", "expands", "profit",
+)
+NEGATIVE_KEYWORDS = (
+    "miss", "drop", "fall", "cut", "downgrade", "weak", "warning",
+    "delay", "lawsuit", "probe", "tariff", "decline", "layoff",
+)
+HIGH_RELEVANCE_KEYWORDS = (
+    "earnings", "guidance", "profit", "revenue", "ceo", "fda", "tariff",
+    "regulation", "acquisition", "buyback", "forecast", "launch",
+)
+
+
+def _dedupe_key(row: dict[str, Any]) -> str:
+    trade_date = str(row.get("trade_date") or row.get("date") or "")[:10]
+    title = str(row.get("title") or "").strip().lower()
+    summary = str(row.get("summary") or "").strip().lower()[:160]
+    raw = f"{trade_date}::{title}::{summary}"
+    return hashlib.sha1(raw.encode("utf-8")).hexdigest()
+
+
+def _chunk_rows(rows: list[dict[str, Any]], size: int) -> list[list[dict[str, Any]]]:
+    chunk_size = max(1, int(size))
+    return [rows[index:index + chunk_size] for index in range(0, len(rows), chunk_size)]
+
+
+def classify_news_row(row: dict[str, Any]) -> dict[str, Any]:
+    """Return a lightweight explain-oriented analysis for one article."""
+    llm_result = analyze_news_row_with_llm(row)
+    if isinstance(llm_result, dict):
+        merged = dict(llm_result)
+        merged.setdefault("summary", str(row.get("summary") or row.get("title") or "")[:280])
+        merged.setdefault("raw_json", row)
+        merged["analysis_source"] = "llm"
+        return merged
+
+    title = str(row.get("title") or "").strip()
+    summary = str(row.get("summary") or "").strip()
+    text = f"{title} {summary}".lower()
+
+    positive_hits = [keyword for keyword in POSITIVE_KEYWORDS if keyword in text]
+    negative_hits = [keyword for keyword in NEGATIVE_KEYWORDS if keyword in text]
+    relevance_hits = [keyword for keyword in HIGH_RELEVANCE_KEYWORDS if keyword in text]
+
+    if len(positive_hits) > len(negative_hits):
+        sentiment = "positive"
+    elif len(negative_hits) > len(positive_hits):
+        sentiment = "negative"
+    else:
+        sentiment = "neutral"
+
+    relevance = "high" if relevance_hits else "medium" if title else "low"
+    summary_text = summary or title
+    key_discussion = ""
+    if relevance_hits:
+        key_discussion = f"核心主题集中在 {', '.join(relevance_hits[:3])}"
+    elif summary_text:
+        key_discussion = summary_text[:160]
+
+    reason_growth = ""
+    reason_decrease = ""
+    if sentiment == "positive":
+        reason_growth = summary_text[:200]
+    elif sentiment == "negative":
+        reason_decrease = summary_text[:200]
+
+    return {
+        "relevance": relevance,
+        "sentiment": sentiment,
+        "key_discussion": key_discussion,
+        "summary": summary_text[:280],
+        "reason_growth": reason_growth,
+        "reason_decrease": reason_decrease,
+        "analysis_source": "local",
+        "raw_json": row,
+    }
+
+
+def attach_forward_returns(
+    *,
+    news_rows: list[dict[str, Any]],
+    ohlc_rows: list[dict[str, Any]],
+) -> list[dict[str, Any]]:
+    """Attach forward-return labels to each analyzed row."""
+    if not ohlc_rows:
+        return news_rows
+
+    closes_by_date = {
+        str(row.get("date")): float(row.get("close"))
+        for row in ohlc_rows
+        if row.get("date") is not None and row.get("close") is not None
+    }
+    ordered_dates = [str(row.get("date")) for row in ohlc_rows if row.get("date") is not None]
+    date_index = {date: idx for idx, date in enumerate(ordered_dates)}
+
+    horizons = {
+        "ret_t0": 0,
+        "ret_t1": 1,
+        "ret_t3": 3,
+        "ret_t5": 5,
+        "ret_t10": 10,
+    }
+
+    enriched: list[dict[str, Any]] = []
+    for row in news_rows:
+        trade_date = str(row.get("trade_date") or "")[:10]
+        base_close = closes_by_date.get(trade_date)
+        if not trade_date or base_close in (None, 0):
+            enriched.append(row)
+            continue
+
+        next_row = dict(row)
+        base_index = date_index.get(trade_date)
+        if base_index is None:
+            enriched.append(next_row)
+            continue
+
+        for field, offset in horizons.items():
+            target_index = base_index + offset
+            if target_index >= len(ordered_dates):
+                next_row[field] = None
+                continue
+            target_close = closes_by_date.get(ordered_dates[target_index])
+            next_row[field] = (
+                (float(target_close) - float(base_close)) / float(base_close)
+                if target_close not in (None, 0)
+                else None
+            )
+        enriched.append(next_row)
+    return enriched
+
+
+def build_analysis_rows(
+    *,
+    symbol: str,
+    news_rows: list[dict[str, Any]],
+    ohlc_rows: list[dict[str, Any]],
+) -> tuple[list[dict[str, Any]], dict[str, int]]:
+    """Transform raw news rows into market_store news_analysis payloads plus stats."""
+    llm_results: dict[str, dict[str, Any]] = {}
+    if llm_enrichment_enabled():
+        batch_size = get_env_int("EXPLAIN_ENRICH_BATCH_SIZE", 8)
+        for chunk in _chunk_rows(news_rows, batch_size):
+            llm_results.update(analyze_news_rows_with_llm(chunk))
+
+    staged_rows: list[dict[str, Any]] = []
+    seen_dedupe_keys: set[str] = set()
+    deduped_count = 0
+    llm_count = 0
+    local_count = 0
+    for row in news_rows:
+        news_id = str(row.get("id") or "").strip()
+        if not news_id:
+            continue
+        dedupe_key = _dedupe_key(row)
+        if dedupe_key in seen_dedupe_keys:
+            deduped_count += 1
+            continue
+        seen_dedupe_keys.add(dedupe_key)
+        batch_result = llm_results.get(news_id)
+        if isinstance(batch_result, dict):
+            analysis = dict(batch_result)
+            analysis.setdefault("summary", str(row.get("summary") or row.get("title") or "")[:280])
+            analysis.setdefault("raw_json", row)
+            analysis["analysis_source"] = "llm"
+            llm_count += 1
+        else:
+            analysis = classify_news_row(row)
+            if analysis.get("analysis_source") == "llm":
+                llm_count += 1
+            else:
+                local_count += 1
+        staged_rows.append(
+            {
+                "news_id": news_id,
+                "trade_date": str(row.get("trade_date") or "")[:10] or None,
+                **analysis,
+            }
+        )
+    return (
+        attach_forward_returns(news_rows=staged_rows, ohlc_rows=ohlc_rows),
+        {
+            "deduped_count": deduped_count,
+            "llm_count": llm_count,
+            "local_count": local_count,
+        },
+    )
+
+
+def enrich_news_for_symbol(
+    store: MarketStore,
+    symbol: str,
+    *,
+    start_date: str | None = None,
+    end_date: str | None = None,
+    limit: int = 200,
+    analysis_source: str = "local",
+    skip_existing: bool = True,
+    only_reanalyze_local: bool = False,
+) -> dict[str, Any]:
+    """Read raw market news, compute explain fields, and persist them."""
+    normalized_symbol = str(symbol or "").strip().upper()
+    if not normalized_symbol:
+        return {"symbol": "", "analyzed": 0}
+
+    news_rows = store.get_news_items(
+        normalized_symbol,
+        start_date=start_date,
+        end_date=end_date,
+        limit=limit,
+    )
+    total_news_count = len(news_rows)
+    skipped_existing_count = 0
+    analyzed_sources: dict[str, str] = {}
+    skipped_missing_analysis_count = 0
+    skipped_non_local_count = 0
+    if news_rows and only_reanalyze_local:
+        analyzed_sources = store.get_analyzed_news_sources(
+            normalized_symbol,
+            start_date=start_date,
+            end_date=end_date,
+        )
+        skipped_missing_analysis_count = sum(
+            1
+            for row in news_rows
+            if str(row.get("id") or "").strip() not in analyzed_sources
+        )
+        skipped_non_local_count = sum(
+            1
+            for row in news_rows
+            if str(row.get("id") or "").strip() in analyzed_sources
+            and analyzed_sources.get(str(row.get("id") or "").strip()) != "local"
+        )
+        skipped_existing_count = sum(
+            1
+            for row in news_rows
+            if str(row.get("id") or "").strip() not in analyzed_sources
+            or analyzed_sources.get(str(row.get("id") or "").strip()) != "local"
+        )
+        news_rows = [
+            row for row in news_rows
+            if analyzed_sources.get(str(row.get("id") or "").strip()) == "local"
+        ]
+    elif skip_existing and news_rows:
+        analyzed_ids = store.get_analyzed_news_ids(
+            normalized_symbol,
+            start_date=start_date,
+            end_date=end_date,
+        )
+        skipped_existing_count = sum(
+            1
+            for row in news_rows
+            if str(row.get("id") or "").strip() in analyzed_ids
+        )
+        news_rows = [
+            row for row in news_rows
+            if str(row.get("id") or "").strip() not in analyzed_ids
+        ]
+    ohlc_start = start_date or (news_rows[-1]["trade_date"] if news_rows and news_rows[-1].get("trade_date") else None)
+    ohlc_end = end_date or (news_rows[0]["trade_date"] if news_rows and news_rows[0].get("trade_date") else None)
+    ohlc_rows = (
+        store.get_ohlc(normalized_symbol, ohlc_start, ohlc_end)
+        if ohlc_start and ohlc_end
+        else []
+    )
+    analysis_rows, stats = build_analysis_rows(
+        symbol=normalized_symbol,
+        news_rows=news_rows,
+        ohlc_rows=ohlc_rows,
+    )
+    analyzed = store.upsert_news_analysis(
+        normalized_symbol,
+        analysis_rows,
+        analysis_source=analysis_source,
+    )
+    upgraded_dates = sorted(
+        {
+            str(row.get("trade_date") or "")[:10]
+            for row in analysis_rows
+            if str(row.get("analysis_source") or "").strip().lower() == "llm"
+            and str(row.get("trade_date") or "").strip()
+        }
+    )
+    remaining_local_titles = [
+        str(row.get("title") or row.get("news_id") or "").strip()
+        for row in news_rows
+        for analyzed_row in analysis_rows
+        if str(analyzed_row.get("news_id") or "").strip() == str(row.get("id") or "").strip()
+        and str(analyzed_row.get("analysis_source") or "").strip().lower() == "local"
+    ][:5]
+    return {
+        "symbol": normalized_symbol,
+        "analyzed": analyzed,
+        "news_count": total_news_count,
+        "queued_count": len(news_rows),
+        "skipped_existing_count": skipped_existing_count,
+        "deduped_count": stats["deduped_count"],
+        "llm_count": stats["llm_count"],
+        "local_count": stats["local_count"],
+        "only_reanalyze_local": only_reanalyze_local,
+        "upgraded_local_to_llm_count": (
+            stats["llm_count"]
+            if only_reanalyze_local
+            else 0
+        ),
+        "execution_summary": {
+            "upgraded_dates": upgraded_dates[:5],
+            "remaining_local_titles": remaining_local_titles,
+            "skipped_missing_analysis_count": skipped_missing_analysis_count,
+            "skipped_non_local_count": skipped_non_local_count,
+        },
+    }
+
+
+def enrich_symbols(
+    store: MarketStore,
+    symbols: list[str],
+    *,
+    start_date: str | None = None,
+    end_date: str | None = None,
+    limit: int = 200,
+    analysis_source: str = "local",
+    skip_existing: bool = True,
+    only_reanalyze_local: bool = False,
+) -> list[dict[str, Any]]:
+    """Batch enrich multiple symbols for explain-oriented news analysis."""
+    results = []
+    for symbol in symbols:
+        normalized_symbol = str(symbol or "").strip().upper()
+        if not normalized_symbol:
+            continue
+        results.append(
+            enrich_news_for_symbol(
+                store,
+                normalized_symbol,
+                start_date=start_date,
+                end_date=end_date,
+                limit=limit,
+                analysis_source=analysis_source,
+                skip_existing=skip_existing,
+                only_reanalyze_local=only_reanalyze_local,
+            )
+        )
+    return results

backend/explain/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+"""Explain-oriented services for stock narratives and news research."""

backend/explain/category_engine.py

@@ -0,0 +1,69 @@
+# -*- coding: utf-8 -*-
+"""Rule-based news categorization for explain UI."""
+
+from __future__ import annotations
+
+from typing import Any, Dict, Iterable
+
+
+CATEGORY_KEYWORDS = {
+    "market": [
+        "market", "stock", "rally", "sell-off", "selloff", "trading",
+        "wall street", "s&p", "nasdaq", "dow", "index", "bull", "bear",
+        "correction", "volatility",
+    ],
+    "policy": [
+        "regulation", "fed", "federal reserve", "tariff", "sanction",
+        "interest rate", "policy", "government", "congress", "sec",
+        "trade war", "ban", "legislation", "tax",
+    ],
+    "earnings": [
+        "earnings", "revenue", "profit", "quarter", "eps", "guidance",
+        "forecast", "income", "sales", "beat", "miss", "outlook",
+        "financial results",
+    ],
+    "product_tech": [
+        "product", "ai", "chip", "cloud", "launch", "patent",
+        "technology", "innovation", "release", "platform", "model",
+        "software", "hardware", "gpu", "autonomous",
+    ],
+    "competition": [
+        "competitor", "rival", "market share", "overtake", "compete",
+        "competition", "vs", "versus", "battle", "challenge",
+    ],
+    "management": [
+        "ceo", "executive", "resign", "layoff", "restructure",
+        "management", "leadership", "appoint", "hire", "board",
+        "chairman",
+    ],
+}
+
+
+def categorize_news_rows(rows: Iterable[Dict[str, Any]]) -> Dict[str, Dict[str, Any]]:
+    """Bucket news rows by keyword categories."""
+    categories: Dict[str, Dict[str, Any]] = {
+        key: {
+            "label": key,
+            "count": 0,
+            "article_ids": [],
+        }
+        for key in CATEGORY_KEYWORDS
+    }
+
+    for row in rows:
+        text = " ".join(
+            [
+                str(row.get("title") or ""),
+                str(row.get("summary") or ""),
+                str(row.get("related") or ""),
+                str(row.get("category") or ""),
+            ]
+        ).lower()
+        article_id = row.get("id")
+        for category, keywords in CATEGORY_KEYWORDS.items():
+            if any(keyword in text for keyword in keywords):
+                categories[category]["count"] += 1
+                if article_id:
+                    categories[category]["article_ids"].append(article_id)
+
+    return categories

backend/explain/range_explainer.py

@@ -0,0 +1,214 @@
+# -*- coding: utf-8 -*-
+"""Local range explanation built from price and persisted news."""
+
+from __future__ import annotations
+
+from typing import Any, Dict
+
+from backend.enrich.llm_enricher import analyze_range_with_llm
+from backend.explain.category_engine import categorize_news_rows
+from backend.tools.data_tools import get_prices
+
+
+def _rank_event_score(row: Dict[str, Any]) -> float:
+    relevance = str(row.get("relevance") or "").strip().lower()
+    relevance_score = {"high": 3.0, "relevant": 3.0, "medium": 2.0, "low": 1.0}.get(
+        relevance,
+        0.5,
+    )
+    impact_score = abs(float(row.get("ret_t0") or 0.0)) * 100
+    return relevance_score + impact_score
+
+
+def summarize_bullish_factors(
+    news_rows: list[Dict[str, Any]],
+    *,
+    limit: int = 5,
+) -> list[str]:
+    factors = []
+    for row in news_rows:
+        if str(row.get("sentiment") or "").strip().lower() != "positive":
+            continue
+        candidate = row.get("reason_growth") or row.get("key_discussion") or row.get("summary") or row.get("title")
+        if candidate:
+            factors.append(str(candidate).strip())
+    seen = set()
+    output = []
+    for factor in factors:
+        if factor in seen:
+            continue
+        seen.add(factor)
+        output.append(factor[:200])
+        if len(output) >= limit:
+            break
+    return output
+
+
+def summarize_bearish_factors(
+    news_rows: list[Dict[str, Any]],
+    *,
+    limit: int = 5,
+) -> list[str]:
+    factors = []
+    for row in news_rows:
+        if str(row.get("sentiment") or "").strip().lower() != "negative":
+            continue
+        candidate = row.get("reason_decrease") or row.get("key_discussion") or row.get("summary") or row.get("title")
+        if candidate:
+            factors.append(str(candidate).strip())
+    seen = set()
+    output = []
+    for factor in factors:
+        if factor in seen:
+            continue
+        seen.add(factor)
+        output.append(factor[:200])
+        if len(output) >= limit:
+            break
+    return output
+
+
+def build_trend_analysis(prices: list[Any]) -> str:
+    if len(prices) < 2:
+        return "区间样本较短，暂不具备足够趋势信息。"
+    if len(prices) < 3:
+        open_price = float(prices[0].open)
+        close_price = float(prices[-1].close)
+        change = ((close_price - open_price) / open_price) * 100 if open_price else 0.0
+        return f"短区间内价格变动 {change:+.2f}%，趋势信息有限。"
+
+    mid = len(prices) // 2
+    first_open = float(prices[0].open)
+    first_close = float(prices[mid].close)
+    second_open = float(prices[mid].open)
+    second_close = float(prices[-1].close)
+    first_half = ((first_close - first_open) / first_open) * 100 if first_open else 0.0
+    second_half = ((second_close - second_open) / second_open) * 100 if second_open else 0.0
+    return (
+        f"前半段{'上涨' if first_half >= 0 else '下跌'} {abs(first_half):.2f}%，"
+        f"后半段{'上涨' if second_half >= 0 else '下跌'} {abs(second_half):.2f}%，"
+        "说明价格驱动在区间内部出现了阶段性切换。"
+    )
+
+
+def build_range_explanation(
+    *,
+    ticker: str,
+    start_date: str,
+    end_date: str,
+    news_rows: list[Dict[str, Any]],
+) -> Dict[str, Any]:
+    """Explain a price range with local price and news heuristics."""
+    prices = get_prices(ticker, start_date, end_date)
+    if not prices:
+        return {
+            "symbol": ticker,
+            "start_date": start_date,
+            "end_date": end_date,
+            "error": "No OHLC data for this range",
+        }
+
+    open_price = float(prices[0].open)
+    close_price = float(prices[-1].close)
+    high_price = max(float(price.high) for price in prices)
+    low_price = min(float(price.low) for price in prices)
+    total_volume = sum(int(price.volume) for price in prices)
+    price_change_pct = (
+        ((close_price - open_price) / open_price) * 100 if open_price else 0.0
+    )
+
+    categories = categorize_news_rows(news_rows)
+    news_count = len(news_rows)
+    dominant_categories = sorted(
+        (
+            {"category": key, "count": value["count"]}
+            for key, value in categories.items()
+            if value["count"] > 0
+        ),
+        key=lambda item: item["count"],
+        reverse=True,
+    )
+
+    direction = "上涨" if price_change_pct > 0 else "下跌" if price_change_pct < 0 else "横盘"
+    category_text = (
+        f"主要主题集中在 {', '.join(item['category'] for item in dominant_categories[:3])}。"
+        if dominant_categories
+        else "区间内未识别出明显的主题聚类。"
+    )
+    summary = (
+        f"{ticker} 在 {start_date} 至 {end_date} 区间内{direction} {abs(price_change_pct):.2f}%，"
+        f"区间覆盖 {len(prices)} 个交易日，关联新闻 {news_count} 条。{category_text}"
+    )
+
+    bullish_factors = summarize_bullish_factors(news_rows)
+    bearish_factors = summarize_bearish_factors(news_rows)
+    trend_analysis = build_trend_analysis(prices)
+    llm_source = "local"
+
+    range_payload = {
+        "ticker": ticker,
+        "start_date": start_date,
+        "end_date": end_date,
+        "price_change_pct": round(price_change_pct, 2),
+        "trading_days": len(prices),
+        "news_count": news_count,
+        "dominant_categories": dominant_categories[:5],
+        "bullish_factors": bullish_factors[:3],
+        "bearish_factors": bearish_factors[:3],
+        "trend_analysis": trend_analysis,
+        "top_news": [
+            {
+                "date": row.get("trade_date") or str(row.get("date") or "")[:10],
+                "title": row.get("title") or "",
+                "summary": row.get("summary") or "",
+                "sentiment": row.get("sentiment") or "",
+                "relevance": row.get("relevance") or "",
+                "ret_t0": row.get("ret_t0"),
+            }
+            for row in sorted(news_rows, key=_rank_event_score, reverse=True)[:5]
+        ],
+    }
+    llm_analysis = analyze_range_with_llm(range_payload)
+    if isinstance(llm_analysis, dict):
+        summary = llm_analysis.get("summary") or summary
+        trend_analysis = llm_analysis.get("trend_analysis") or trend_analysis
+        bullish_factors = llm_analysis.get("bullish_factors") or bullish_factors
+        bearish_factors = llm_analysis.get("bearish_factors") or bearish_factors
+        llm_source = "llm"
+
+    key_events = [
+        {
+            "date": row.get("trade_date") or str(row.get("date") or "")[:10],
+            "title": row.get("title") or "Untitled news",
+            "summary": row.get("summary") or "",
+            "category": row.get("category") or "",
+            "id": row.get("id"),
+            "sentiment": row.get("sentiment"),
+            "ret_t0": row.get("ret_t0"),
+        }
+        for row in sorted(news_rows, key=_rank_event_score, reverse=True)[:8]
+    ]
+
+    return {
+        "symbol": ticker,
+        "start_date": start_date,
+        "end_date": end_date,
+        "price_change_pct": round(price_change_pct, 2),
+        "open_price": open_price,
+        "close_price": close_price,
+        "high_price": high_price,
+        "low_price": low_price,
+        "total_volume": total_volume,
+        "trading_days": len(prices),
+        "news_count": news_count,
+        "dominant_categories": dominant_categories[:5],
+        "analysis": {
+            "summary": summary,
+            "key_events": key_events,
+            "bullish_factors": bullish_factors,
+            "bearish_factors": bearish_factors,
+            "trend_analysis": trend_analysis,
+            "analysis_source": llm_source,
+            "analysis_model_label": llm_analysis.get("model_label") if isinstance(llm_analysis, dict) else None,
+        },
+    }

backend/explain/similarity_service.py

@@ -0,0 +1,202 @@
+# -*- coding: utf-8 -*-
+"""Same-ticker historical similar day search for explain view."""
+
+from __future__ import annotations
+
+from math import sqrt
+from typing import Any
+
+from backend.data.market_store import MarketStore
+
+
+def _safe_float(value: Any, default: float = 0.0) -> float:
+    try:
+        parsed = float(value)
+    except (TypeError, ValueError):
+        return default
+    return parsed
+
+
+def build_daily_feature_rows(
+    *,
+    symbol: str,
+    ohlc_rows: list[dict[str, Any]],
+    news_rows: list[dict[str, Any]],
+) -> list[dict[str, Any]]:
+    """Aggregate price/news context into daily feature rows."""
+    price_by_date = {str(row.get("date")): row for row in ohlc_rows if row.get("date")}
+    ordered_dates = [str(row.get("date")) for row in ohlc_rows if row.get("date")]
+
+    news_by_date: dict[str, list[dict[str, Any]]] = {}
+    for row in news_rows:
+        trade_date = str(row.get("trade_date") or "")[:10] or str(row.get("date") or "")[:10]
+        if not trade_date:
+            continue
+        news_by_date.setdefault(trade_date, []).append(row)
+
+    features: list[dict[str, Any]] = []
+    previous_close: float | None = None
+    for idx, date in enumerate(ordered_dates):
+        price_row = price_by_date[date]
+        close_price = _safe_float(price_row.get("close"))
+        open_price = _safe_float(price_row.get("open"), close_price)
+        day_news = news_by_date.get(date, [])
+        positive_count = sum(1 for item in day_news if str(item.get("sentiment") or "").lower() == "positive")
+        negative_count = sum(1 for item in day_news if str(item.get("sentiment") or "").lower() == "negative")
+        high_relevance_count = sum(
+            1 for item in day_news if str(item.get("relevance") or "").lower() in {"high", "relevant"}
+        )
+        ret_1d = (
+            ((close_price - previous_close) / previous_close)
+            if previous_close not in (None, 0)
+            else 0.0
+        )
+        intraday_ret = ((close_price - open_price) / open_price) if open_price else 0.0
+        sentiment_score = (
+            (positive_count - negative_count) / max(len(day_news), 1)
+            if day_news
+            else 0.0
+        )
+        future_t1 = None
+        future_t3 = None
+        if idx + 1 < len(ordered_dates) and close_price:
+            next_close = _safe_float(price_by_date[ordered_dates[idx + 1]].get("close"))
+            future_t1 = ((next_close - close_price) / close_price) if next_close else None
+        if idx + 3 < len(ordered_dates) and close_price:
+            next_close = _safe_float(price_by_date[ordered_dates[idx + 3]].get("close"))
+            future_t3 = ((next_close - close_price) / close_price) if next_close else None
+
+        features.append(
+            {
+                "date": date,
+                "symbol": symbol,
+                "n_articles": len(day_news),
+                "positive_count": positive_count,
+                "negative_count": negative_count,
+                "high_relevance_count": high_relevance_count,
+                "sentiment_score": sentiment_score,
+                "ret_1d": ret_1d,
+                "intraday_ret": intraday_ret,
+                "close": close_price,
+                "ret_t1_after": future_t1,
+                "ret_t3_after": future_t3,
+                "news": [
+                    {
+                        "title": row.get("title") or "",
+                        "sentiment": row.get("sentiment") or "neutral",
+                    }
+                    for row in day_news[:3]
+                ],
+            }
+        )
+        previous_close = close_price
+    return features
+
+
+def compute_similarity_scores(
+    target_vector: list[float],
+    candidate_vectors: list[tuple[str, list[float], dict[str, Any]]],
+) -> list[dict[str, Any]]:
+    """Return sorted similarity matches based on normalized Euclidean distance."""
+    if not candidate_vectors:
+        return []
+    dimensions = len(target_vector)
+    ranges = []
+    for dimension in range(dimensions):
+        values = [vector[1][dimension] for vector in candidate_vectors] + [target_vector[dimension]]
+        min_value = min(values)
+        max_value = max(values)
+        ranges.append(max(max_value - min_value, 1e-9))
+
+    scored = []
+    for date, vector, payload in candidate_vectors:
+        distance = sqrt(
+            sum(
+                ((target_vector[i] - vector[i]) / ranges[i]) ** 2
+                for i in range(dimensions)
+            )
+        )
+        similarity = 1.0 / (1.0 + distance)
+        scored.append(
+            {
+                "date": date,
+                "score": round(similarity, 4),
+                **payload,
+            }
+        )
+    return sorted(scored, key=lambda item: item["score"], reverse=True)
+
+
+def find_similar_days(
+    store: MarketStore,
+    *,
+    symbol: str,
+    target_date: str,
+    top_k: int = 10,
+) -> dict[str, Any]:
+    """Find same-ticker historical days most similar to a target day."""
+    cached = store.get_similar_day_cache(symbol, target_date=target_date)
+    if cached and cached.get("payload"):
+        return cached["payload"]
+
+    ohlc_rows = store.get_ohlc(symbol, "1900-01-01", target_date)
+    news_rows = store.get_news_items_enriched(symbol, end_date=target_date, limit=500)
+    daily_rows = build_daily_feature_rows(symbol=symbol, ohlc_rows=ohlc_rows, news_rows=news_rows)
+    feature_map = {row["date"]: row for row in daily_rows}
+    target_row = feature_map.get(target_date)
+    if not target_row:
+        return {
+            "symbol": symbol,
+            "target_date": target_date,
+            "items": [],
+            "error": "No feature row for target date",
+        }
+
+    vector_keys = [
+        "sentiment_score",
+        "n_articles",
+        "positive_count",
+        "negative_count",
+        "high_relevance_count",
+        "ret_1d",
+        "intraday_ret",
+    ]
+    target_vector = [_safe_float(target_row.get(key)) for key in vector_keys]
+    candidates = []
+    for row in daily_rows:
+        date = row["date"]
+        if date == target_date:
+            continue
+        payload = {
+            "n_articles": row["n_articles"],
+            "sentiment_score": round(row["sentiment_score"], 4),
+            "ret_1d": round(row["ret_1d"] * 100, 2),
+            "intraday_ret": round(row["intraday_ret"] * 100, 2),
+            "ret_t1_after": round(row["ret_t1_after"] * 100, 2) if row["ret_t1_after"] is not None else None,
+            "ret_t3_after": round(row["ret_t3_after"] * 100, 2) if row["ret_t3_after"] is not None else None,
+            "top_reasons": [item["title"] for item in row["news"][:2] if item.get("title")],
+            "news": row["news"],
+        }
+        candidates.append(
+            (
+                date,
+                [_safe_float(row.get(key)) for key in vector_keys],
+                payload,
+            )
+        )
+
+    items = compute_similarity_scores(target_vector, candidates)[: max(1, min(int(top_k), 20))]
+    result = {
+        "symbol": symbol,
+        "target_date": target_date,
+        "target_features": {
+            "sentiment_score": round(target_row["sentiment_score"], 4),
+            "n_articles": target_row["n_articles"],
+            "ret_1d": round(target_row["ret_1d"] * 100, 2),
+            "intraday_ret": round(target_row["intraday_ret"] * 100, 2),
+            "high_relevance_count": target_row["high_relevance_count"],
+        },
+        "items": items,
+    }
+    store.upsert_similar_day_cache(symbol, target_date=target_date, payload=result, source="local")
+    return result

backend/explain/story_service.py

@@ -0,0 +1,127 @@
+# -*- coding: utf-8 -*-
+"""Stock story generation for explain view."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta
+from typing import Any
+
+from backend.data.market_store import MarketStore
+
+
+def build_stock_story(
+    *,
+    symbol: str,
+    as_of_date: str,
+    price_rows: list[dict[str, Any]],
+    news_rows: list[dict[str, Any]],
+) -> str:
+    """Build a compact markdown story from enriched news and recent price action."""
+    lines = [f"## {symbol} Story", f"As of `{as_of_date}`"]
+    if not price_rows:
+        lines.append("")
+        lines.append("No OHLC data available for story generation.")
+        return "\n".join(lines)
+
+    open_price = float(price_rows[0].get("open") or price_rows[0].get("close") or 0.0)
+    close_price = float(price_rows[-1].get("close") or 0.0)
+    price_change = ((close_price - open_price) / open_price) * 100 if open_price else 0.0
+    high_price = max(float(row.get("high") or row.get("close") or 0.0) for row in price_rows)
+    low_price = min(float(row.get("low") or row.get("close") or 0.0) for row in price_rows)
+
+    lines.append("")
+    lines.append(
+        f"The stock moved {'up' if price_change >= 0 else 'down'} "
+        f"{abs(price_change):.2f}% over the recent window, trading between "
+        f"${low_price:.2f} and ${high_price:.2f}."
+    )
+
+    positive = [row for row in news_rows if str(row.get("sentiment") or "").lower() == "positive"]
+    negative = [row for row in news_rows if str(row.get("sentiment") or "").lower() == "negative"]
+    lines.append("")
+    lines.append(
+        f"Recent coverage included {len(news_rows)} relevant articles "
+        f"({len(positive)} positive / {len(negative)} negative)."
+    )
+
+    if news_rows:
+        lines.append("")
+        lines.append("### Key Moments")
+        ranked_rows = sorted(
+            news_rows,
+            key=lambda row: (
+                0 if str(row.get("relevance") or "").lower() in {"high", "relevant"} else 1,
+                -abs(float(row.get("ret_t0") or 0.0)),
+            ),
+        )
+        for row in ranked_rows[:5]:
+            trade_date = row.get("trade_date") or str(row.get("date") or "")[:10]
+            title = row.get("title") or "Untitled"
+            key_discussion = row.get("key_discussion") or row.get("summary") or ""
+            sentiment = str(row.get("sentiment") or "neutral").lower()
+            lines.append(
+                f"- `{trade_date}` [{sentiment}] {title}: {str(key_discussion).strip()[:220]}"
+            )
+
+    if positive:
+        lines.append("")
+        lines.append("### Bullish Threads")
+        for row in positive[:3]:
+            reason = row.get("reason_growth") or row.get("key_discussion") or row.get("summary") or row.get("title")
+            lines.append(f"- {str(reason).strip()[:220]}")
+
+    if negative:
+        lines.append("")
+        lines.append("### Bearish Threads")
+        for row in negative[:3]:
+            reason = row.get("reason_decrease") or row.get("key_discussion") or row.get("summary") or row.get("title")
+            lines.append(f"- {str(reason).strip()[:220]}")
+
+    return "\n".join(lines)
+
+
+def get_or_create_stock_story(
+    store: MarketStore,
+    *,
+    symbol: str,
+    as_of_date: str,
+) -> dict[str, Any]:
+    """Return cached story or build a new one from recent market context."""
+    cached = store.get_story_cache(symbol, as_of_date=as_of_date)
+    if cached:
+        return {
+            "symbol": symbol,
+            "as_of_date": as_of_date,
+            "story": cached.get("content") or "",
+            "source": cached.get("source") or "cache",
+        }
+
+    start_date = None
+    if len(as_of_date) >= 10:
+        target_date = datetime.strptime(as_of_date[:10], "%Y-%m-%d").date()
+        start_date = (target_date - timedelta(days=29)).isoformat()
+
+    price_rows = (
+        store.get_ohlc(symbol, start_date, as_of_date)
+        if start_date
+        else []
+    )
+    news_rows = store.get_news_items_enriched(
+        symbol,
+        start_date=start_date,
+        end_date=as_of_date,
+        limit=40,
+    )
+    story = build_stock_story(
+        symbol=symbol,
+        as_of_date=as_of_date,
+        price_rows=price_rows,
+        news_rows=news_rows,
+    )
+    store.upsert_story_cache(symbol, as_of_date=as_of_date, content=story, source="local")
+    return {
+        "symbol": symbol,
+        "as_of_date": as_of_date,
+        "story": story,
+        "source": "local",
+    }

backend/services/gateway.py

@@ -17,6 +17,12 @@ from backend.config.bootstrap_config import (
     update_bootstrap_values_for_run,
 )
 from backend.data.provider_utils import normalize_symbol
+from backend.data.market_ingest import ingest_symbols
+from backend.enrich.llm_enricher import llm_enrichment_enabled
+from backend.enrich.news_enricher import enrich_news_for_symbol
+from backend.explain.range_explainer import build_range_explanation
+from backend.explain.similarity_service import find_similar_days
+from backend.explain.story_service import get_or_create_stock_story
 from backend.utils.msg_adapter import FrontendAdapter
 from backend.utils.terminal_dashboard import get_dashboard
 from backend.core.pipeline import TradingPipeline
@@ -25,6 +31,7 @@ from backend.services.market import MarketService
 from backend.services.storage import StorageService
 from backend.data.provider_router import get_provider_router
 from backend.tools.data_tools import get_prices
+from backend.tools.data_tools import get_company_news
 
 logger = logging.getLogger(__name__)
 
@@ -65,6 +72,7 @@ class Gateway:
         self._backtest_end_date: Optional[str] = None
         self._dashboard = get_dashboard()
         self._market_status_task: Optional[asyncio.Task] = None
+        self._watchlist_ingest_task: Optional[asyncio.Task] = None
 
         # Session tracking for live returns
         self._session_start_portfolio_value: Optional[float] = None
@@ -182,6 +190,17 @@ class Gateway:
     def state(self) -> Dict[str, Any]:
         return self.state_sync.state
 
+    @staticmethod
+    def _news_rows_need_enrichment(rows: List[Dict[str, Any]]) -> bool:
+        if not rows:
+            return True
+        return all(
+            not row.get("sentiment")
+            and not row.get("relevance")
+            and not row.get("key_discussion")
+            for row in rows
+        )
+
     async def handle_client(self, websocket: ServerConnection):
         """Handle WebSocket client connection"""
         async with self.lock:
@@ -250,6 +269,22 @@ class Gateway:
                     await self._handle_get_stock_history(websocket, data)
                 elif msg_type == "get_stock_explain_events":
                     await self._handle_get_stock_explain_events(websocket, data)
+                elif msg_type == "get_stock_news":
+                    await self._handle_get_stock_news(websocket, data)
+                elif msg_type == "get_stock_news_for_date":
+                    await self._handle_get_stock_news_for_date(websocket, data)
+                elif msg_type == "get_stock_news_timeline":
+                    await self._handle_get_stock_news_timeline(websocket, data)
+                elif msg_type == "get_stock_news_categories":
+                    await self._handle_get_stock_news_categories(websocket, data)
+                elif msg_type == "get_stock_range_explain":
+                    await self._handle_get_stock_range_explain(websocket, data)
+                elif msg_type == "get_stock_story":
+                    await self._handle_get_stock_story(websocket, data)
+                elif msg_type == "get_stock_similar_days":
+                    await self._handle_get_stock_similar_days(websocket, data)
+                elif msg_type == "run_stock_enrich":
+                    await self._handle_run_stock_enrich(websocket, data)
 
         except websockets.ConnectionClosed:
             pass
@@ -297,6 +332,14 @@ class Gateway:
             "%Y-%m-%d",
         )
 
+        prices = await asyncio.to_thread(
+            self.storage.market_store.get_ohlc,
+            ticker,
+            start_date,
+            end_date,
+        )
+        source = "polygon"
+        if not prices:
             prices = await asyncio.to_thread(
                 get_prices,
                 ticker,
@@ -305,13 +348,23 @@ class Gateway:
             )
             usage_snapshot = self._provider_router.get_usage_snapshot()
             source = usage_snapshot.get("last_success", {}).get("prices")
+            if prices:
+                await asyncio.to_thread(
+                    self.storage.market_store.upsert_ohlc,
+                    ticker,
+                    [price.model_dump() for price in prices],
+                    source=source or "provider",
+                )
 
         await websocket.send(
             json.dumps(
                 {
                     "type": "stock_history_loaded",
                     "ticker": ticker,
-                    "prices": [price.model_dump() for price in prices][-120:],
+                    "prices": [
+                        price if isinstance(price, dict) else price.model_dump()
+                        for price in prices
+                    ][-120:],
                     "source": source,
                     "start_date": start_date,
                     "end_date": end_date,
@@ -342,6 +395,636 @@ class Gateway:
             ),
         )
 
+    async def _handle_get_stock_news(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        if not ticker:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_news_loaded",
+                        "ticker": "",
+                        "news": [],
+                        "source": None,
+                        "error": "invalid ticker",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        lookback_days = data.get("lookback_days", 30)
+        limit = data.get("limit", 12)
+        try:
+            lookback_days = max(7, min(int(lookback_days), 180))
+        except (TypeError, ValueError):
+            lookback_days = 30
+        try:
+            limit = max(1, min(int(limit), 30))
+        except (TypeError, ValueError):
+            limit = 12
+
+        end_date = self.state_sync.state.get("current_date")
+        if not end_date:
+            end_date = datetime.now().strftime("%Y-%m-%d")
+
+        try:
+            end_dt = datetime.strptime(end_date, "%Y-%m-%d")
+        except ValueError:
+            end_dt = datetime.now()
+            end_date = end_dt.strftime("%Y-%m-%d")
+
+        start_date = (end_dt - timedelta(days=lookback_days)).strftime(
+            "%Y-%m-%d",
+        )
+
+        news_rows = await asyncio.to_thread(
+            self.storage.market_store.get_news_items_enriched,
+            ticker,
+            start_date=start_date,
+            end_date=end_date,
+            limit=limit,
+        )
+        source = "polygon"
+        if self._news_rows_need_enrichment(news_rows):
+            news = await asyncio.to_thread(
+                get_company_news,
+                ticker,
+                end_date,
+                start_date,
+                limit,
+            )
+            if news:
+                usage_snapshot = self._provider_router.get_usage_snapshot()
+                source = usage_snapshot.get("last_success", {}).get("company_news")
+                await asyncio.to_thread(
+                    self.storage.market_store.upsert_news,
+                    ticker,
+                    [item.model_dump() for item in news],
+                    source=source or "provider",
+                )
+            await asyncio.to_thread(
+                enrich_news_for_symbol,
+                self.storage.market_store,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=max(limit, 50),
+            )
+            news_rows = await asyncio.to_thread(
+                self.storage.market_store.get_news_items_enriched,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=limit,
+            )
+            source = source or "market_store"
+
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_news_loaded",
+                    "ticker": ticker,
+                    "news": news_rows[-limit:],
+                    "source": source,
+                    "start_date": start_date,
+                    "end_date": end_date,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_news_for_date(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        trade_date = str(data.get("date") or "").strip()
+        if not ticker or not trade_date:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_news_for_date_loaded",
+                        "ticker": ticker,
+                        "date": trade_date,
+                        "news": [],
+                        "error": "ticker and date are required",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        limit = data.get("limit", 20)
+        try:
+            limit = max(1, min(int(limit), 50))
+        except (TypeError, ValueError):
+            limit = 20
+
+        news_rows = await asyncio.to_thread(
+            self.storage.market_store.get_news_items_enriched,
+            ticker,
+            trade_date=trade_date,
+            limit=limit,
+        )
+        if self._news_rows_need_enrichment(news_rows):
+            await asyncio.to_thread(
+                enrich_news_for_symbol,
+                self.storage.market_store,
+                ticker,
+                start_date=trade_date,
+                end_date=trade_date,
+                limit=limit,
+            )
+            news_rows = await asyncio.to_thread(
+                self.storage.market_store.get_news_items_enriched,
+                ticker,
+                trade_date=trade_date,
+                limit=limit,
+            )
+
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_news_for_date_loaded",
+                    "ticker": ticker,
+                    "date": trade_date,
+                    "news": news_rows,
+                    "source": "market_store",
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_news_timeline(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        if not ticker:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_news_timeline_loaded",
+                        "ticker": "",
+                        "timeline": [],
+                        "error": "invalid ticker",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        lookback_days = data.get("lookback_days", 90)
+        try:
+            lookback_days = max(7, min(int(lookback_days), 365))
+        except (TypeError, ValueError):
+            lookback_days = 90
+
+        end_date = self.state_sync.state.get("current_date")
+        if not end_date:
+            end_date = datetime.now().strftime("%Y-%m-%d")
+
+        try:
+            end_dt = datetime.strptime(end_date, "%Y-%m-%d")
+        except ValueError:
+            end_dt = datetime.now()
+            end_date = end_dt.strftime("%Y-%m-%d")
+
+        start_date = (end_dt - timedelta(days=lookback_days)).strftime(
+            "%Y-%m-%d",
+        )
+        timeline = await asyncio.to_thread(
+            self.storage.market_store.get_news_timeline_enriched,
+            ticker,
+            start_date=start_date,
+            end_date=end_date,
+        )
+        if not timeline:
+            await asyncio.to_thread(
+                enrich_news_for_symbol,
+                self.storage.market_store,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=200,
+            )
+            timeline = await asyncio.to_thread(
+                self.storage.market_store.get_news_timeline_enriched,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+            )
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_news_timeline_loaded",
+                    "ticker": ticker,
+                    "timeline": timeline,
+                    "start_date": start_date,
+                    "end_date": end_date,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_news_categories(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        if not ticker:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_news_categories_loaded",
+                        "ticker": "",
+                        "categories": {},
+                        "error": "invalid ticker",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        lookback_days = data.get("lookback_days", 90)
+        try:
+            lookback_days = max(7, min(int(lookback_days), 365))
+        except (TypeError, ValueError):
+            lookback_days = 90
+
+        end_date = self.state_sync.state.get("current_date")
+        if not end_date:
+            end_date = datetime.now().strftime("%Y-%m-%d")
+
+        try:
+            end_dt = datetime.strptime(end_date, "%Y-%m-%d")
+        except ValueError:
+            end_dt = datetime.now()
+            end_date = end_dt.strftime("%Y-%m-%d")
+
+        start_date = (end_dt - timedelta(days=lookback_days)).strftime(
+            "%Y-%m-%d",
+        )
+        news_rows = await asyncio.to_thread(
+            self.storage.market_store.get_news_items_enriched,
+            ticker,
+            start_date=start_date,
+            end_date=end_date,
+            limit=200,
+        )
+        if self._news_rows_need_enrichment(news_rows):
+            await asyncio.to_thread(
+                enrich_news_for_symbol,
+                self.storage.market_store,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=200,
+            )
+        categories = await asyncio.to_thread(
+            self.storage.market_store.get_news_categories_enriched,
+            ticker,
+            start_date=start_date,
+            end_date=end_date,
+            limit=200,
+        )
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_news_categories_loaded",
+                    "ticker": ticker,
+                    "categories": categories,
+                    "start_date": start_date,
+                    "end_date": end_date,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_range_explain(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        start_date = str(data.get("start_date") or "").strip()
+        end_date = str(data.get("end_date") or "").strip()
+        if not ticker or not start_date or not end_date:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_range_explain_loaded",
+                        "ticker": ticker,
+                        "result": {"error": "ticker, start_date, end_date are required"},
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        article_ids = data.get("article_ids")
+        if isinstance(article_ids, list) and article_ids:
+            news_rows = await asyncio.to_thread(
+                self.storage.market_store.get_news_by_ids_enriched,
+                ticker,
+                article_ids,
+            )
+            if self._news_rows_need_enrichment(news_rows):
+                await asyncio.to_thread(
+                    enrich_news_for_symbol,
+                    self.storage.market_store,
+                    ticker,
+                    start_date=start_date,
+                    end_date=end_date,
+                    limit=100,
+                )
+                news_rows = await asyncio.to_thread(
+                    self.storage.market_store.get_news_by_ids_enriched,
+                    ticker,
+                    article_ids,
+                )
+        else:
+            news_rows = await asyncio.to_thread(
+                self.storage.market_store.get_news_items_enriched,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=100,
+            )
+        if not news_rows:
+            await asyncio.to_thread(
+                enrich_news_for_symbol,
+                self.storage.market_store,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=100,
+            )
+            news_rows = await asyncio.to_thread(
+                self.storage.market_store.get_news_items_enriched,
+                ticker,
+                start_date=start_date,
+                end_date=end_date,
+                limit=100,
+            )
+
+        result = await asyncio.to_thread(
+            build_range_explanation,
+            ticker=ticker,
+            start_date=start_date,
+            end_date=end_date,
+            news_rows=news_rows,
+        )
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_range_explain_loaded",
+                    "ticker": ticker,
+                    "result": result,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_story(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        if not ticker:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_story_loaded",
+                        "ticker": "",
+                        "story": "",
+                        "error": "invalid ticker",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        as_of_date = str(
+            data.get("as_of_date")
+            or self.state_sync.state.get("current_date")
+            or datetime.now().strftime("%Y-%m-%d")
+        ).strip()[:10]
+        await asyncio.to_thread(
+            enrich_news_for_symbol,
+            self.storage.market_store,
+            ticker,
+            end_date=as_of_date,
+            limit=80,
+        )
+        result = await asyncio.to_thread(
+            get_or_create_stock_story,
+            self.storage.market_store,
+            symbol=ticker,
+            as_of_date=as_of_date,
+        )
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_story_loaded",
+                    "ticker": ticker,
+                    "as_of_date": as_of_date,
+                    "story": result.get("story") or "",
+                    "source": result.get("source") or "local",
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_get_stock_similar_days(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        target_date = str(data.get("date") or "").strip()[:10]
+        if not ticker or not target_date:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_similar_days_loaded",
+                        "ticker": ticker,
+                        "date": target_date,
+                        "items": [],
+                        "error": "ticker and date are required",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        top_k = data.get("top_k", 8)
+        try:
+            top_k = max(1, min(int(top_k), 20))
+        except (TypeError, ValueError):
+            top_k = 8
+
+        await asyncio.to_thread(
+            enrich_news_for_symbol,
+            self.storage.market_store,
+            ticker,
+            end_date=target_date,
+            limit=200,
+        )
+        result = await asyncio.to_thread(
+            find_similar_days,
+            self.storage.market_store,
+            symbol=ticker,
+            target_date=target_date,
+            top_k=top_k,
+        )
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_similar_days_loaded",
+                    "ticker": ticker,
+                    "date": target_date,
+                    **result,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
+    async def _handle_run_stock_enrich(
+        self,
+        websocket: ServerConnection,
+        data: Dict[str, Any],
+    ):
+        ticker = normalize_symbol(data.get("ticker", ""))
+        start_date = str(data.get("start_date") or "").strip()[:10]
+        end_date = str(data.get("end_date") or "").strip()[:10]
+        story_date = str(data.get("story_date") or end_date or "").strip()[:10]
+        target_date = str(data.get("target_date") or "").strip()[:10]
+        force = bool(data.get("force", False))
+        rebuild_story = bool(data.get("rebuild_story", True))
+        rebuild_similar_days = bool(data.get("rebuild_similar_days", True))
+        only_local_to_llm = bool(data.get("only_local_to_llm", False))
+        limit = data.get("limit", 200)
+
+        try:
+            limit = max(10, min(int(limit), 500))
+        except (TypeError, ValueError):
+            limit = 200
+
+        if not ticker or not start_date or not end_date:
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_enrich_completed",
+                        "ticker": ticker,
+                        "start_date": start_date,
+                        "end_date": end_date,
+                        "error": "ticker, start_date, end_date are required",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        if only_local_to_llm and not llm_enrichment_enabled():
+            await websocket.send(
+                json.dumps(
+                    {
+                        "type": "stock_enrich_completed",
+                        "ticker": ticker,
+                        "start_date": start_date,
+                        "end_date": end_date,
+                        "error": "only_local_to_llm requires EXPLAIN_ENRICH_USE_LLM=true and a configured LLM provider",
+                    },
+                    ensure_ascii=False,
+                ),
+            )
+            return
+
+        result = await asyncio.to_thread(
+            enrich_news_for_symbol,
+            self.storage.market_store,
+            ticker,
+            start_date=start_date,
+            end_date=end_date,
+            limit=limit,
+            skip_existing=not force,
+            only_reanalyze_local=only_local_to_llm,
+        )
+
+        story_status = None
+        if rebuild_story and story_date:
+            await asyncio.to_thread(
+                self.storage.market_store.delete_story_cache,
+                ticker,
+                as_of_date=story_date,
+            )
+            story_result = await asyncio.to_thread(
+                get_or_create_stock_story,
+                self.storage.market_store,
+                symbol=ticker,
+                as_of_date=story_date,
+            )
+            story_status = {
+                "as_of_date": story_date,
+                "source": story_result.get("source") or "local",
+            }
+
+        similar_status = None
+        if rebuild_similar_days and target_date:
+            await asyncio.to_thread(
+                self.storage.market_store.delete_similar_day_cache,
+                ticker,
+                target_date=target_date,
+            )
+            similar_result = await asyncio.to_thread(
+                find_similar_days,
+                self.storage.market_store,
+                symbol=ticker,
+                target_date=target_date,
+                top_k=8,
+            )
+            similar_status = {
+                "target_date": target_date,
+                "count": len(similar_result.get("items") or []),
+                "error": similar_result.get("error"),
+            }
+
+        await websocket.send(
+            json.dumps(
+                {
+                    "type": "stock_enrich_completed",
+                    "ticker": ticker,
+                    "start_date": start_date,
+                    "end_date": end_date,
+                    "story_date": story_date or None,
+                    "target_date": target_date or None,
+                    "force": force,
+                    "only_local_to_llm": only_local_to_llm,
+                    "stats": result,
+                    "story_status": story_status,
+                    "similar_status": similar_status,
+                },
+                ensure_ascii=False,
+                default=str,
+            ),
+        )
+
     async def _handle_start_backtest(self, data: Dict[str, Any]):
         if not self.is_backtest:
             return
@@ -410,6 +1093,7 @@ class Gateway:
             },
         )
         await self._handle_reload_runtime_assets()
+        self._schedule_watchlist_market_store_refresh(tickers)
 
     @staticmethod
     def _normalize_watchlist(raw_tickers: Any) -> List[str]:
@@ -538,6 +1222,48 @@ class Gateway:
             trades=trades,
         )
 
+    def _schedule_watchlist_market_store_refresh(
+        self,
+        tickers: List[str],
+    ) -> None:
+        """Kick off a non-blocking Polygon refresh for the updated watchlist."""
+        if not tickers:
+            return
+        if self._watchlist_ingest_task and not self._watchlist_ingest_task.done():
+            self._watchlist_ingest_task.cancel()
+        self._watchlist_ingest_task = asyncio.create_task(
+            self._refresh_market_store_for_watchlist(tickers),
+        )
+
+    async def _refresh_market_store_for_watchlist(
+        self,
+        tickers: List[str],
+    ) -> None:
+        """Refresh the long-lived market store after a watchlist update."""
+        try:
+            await self.state_sync.on_system_message(
+                f"正在同步自选股市场数据: {', '.join(tickers)}",
+            )
+            results = await asyncio.to_thread(
+                ingest_symbols,
+                tickers,
+                mode="incremental",
+            )
+            summary = ", ".join(
+                f"{item['symbol']} prices={item['prices']} news={item['news']}"
+                for item in results
+            )
+            await self.state_sync.on_system_message(
+                f"自选股市场数据已同步: {summary}",
+            )
+        except asyncio.CancelledError:
+            raise
+        except Exception as exc:
+            logger.warning("Watchlist market store refresh failed: %s", exc)
+            await self.state_sync.on_system_message(
+                f"自选股市场数据同步失败: {exc}",
+            )
+
     async def broadcast(self, message: Dict[str, Any]):
         """Broadcast message to all connected clients"""
         if not self.connected_clients:
@@ -896,4 +1622,6 @@ class Gateway:
             self._backtest_task.cancel()
         if self._market_status_task:
             self._market_status_task.cancel()
+        if self._watchlist_ingest_task:
+            self._watchlist_ingest_task.cancel()
         self._dashboard.stop()

backend/services/market.py

@@ -65,6 +65,18 @@ class MarketService:
         self._session_start_values: Optional[Dict[str, float]] = None
         self._session_start_timestamp: Optional[int] = None
 
+    def get_live_quote_provider(self) -> Optional[str]:
+        """Return the active live quote provider for UI/debugging."""
+        if self.backtest_mode:
+            return "backtest"
+        if self.mock_mode:
+            return "mock"
+        if self._price_manager and hasattr(self._price_manager, "provider"):
+            provider = getattr(self._price_manager, "provider", None)
+            if isinstance(provider, str) and provider.strip():
+                return provider.strip().lower()
+        return None
+
     @property
     def mode_name(self) -> str:
         if self.backtest_mode:
@@ -532,6 +544,7 @@ class MarketService:
                 "status": MarketStatus.OPEN,
                 "status_text": "Backtest Mode",
                 "is_trading_day": True,
+                "live_quote_provider": self.get_live_quote_provider(),
             }
 
         now = self._now_nyse()
@@ -544,6 +557,7 @@ class MarketService:
                 "status": MarketStatus.CLOSED,
                 "status_text": "Market Closed (Non-trading Day)",
                 "is_trading_day": False,
+                "live_quote_provider": self.get_live_quote_provider(),
             }
 
         market_open, market_close = self._get_market_hours(today)
@@ -553,6 +567,7 @@ class MarketService:
                 "status": MarketStatus.CLOSED,
                 "status_text": "Market Closed",
                 "is_trading_day": is_trading,
+                "live_quote_provider": self.get_live_quote_provider(),
             }
 
         # Determine status based on current time
@@ -563,6 +578,7 @@ class MarketService:
                 "is_trading_day": True,
                 "market_open": market_open.isoformat(),
                 "market_close": market_close.isoformat(),
+                "live_quote_provider": self.get_live_quote_provider(),
             }
         elif now > market_close:
             return {
@@ -571,6 +587,7 @@ class MarketService:
                 "is_trading_day": True,
                 "market_open": market_open.isoformat(),
                 "market_close": market_close.isoformat(),
+                "live_quote_provider": self.get_live_quote_provider(),
             }
         else:
             return {
@@ -579,6 +596,7 @@ class MarketService:
                 "is_trading_day": True,
                 "market_open": market_open.isoformat(),
                 "market_close": market_close.isoformat(),
+                "live_quote_provider": self.get_live_quote_provider(),
             }
 
     async def check_and_broadcast_market_status(self):

backend/services/research_db.py

@@ -0,0 +1,280 @@
+# -*- coding: utf-8 -*-
+"""Query-oriented storage for explain/research data."""
+
+from __future__ import annotations
+
+import json
+import sqlite3
+from datetime import datetime
+from pathlib import Path
+from typing import Any, Dict, Iterable
+
+from backend.data.schema import CompanyNews
+
+
+SCHEMA = """
+CREATE TABLE IF NOT EXISTS news_items (
+    id TEXT PRIMARY KEY,
+    ticker TEXT NOT NULL,
+    published_at TEXT,
+    trade_date TEXT,
+    source TEXT,
+    title TEXT NOT NULL,
+    summary TEXT,
+    url TEXT,
+    related TEXT,
+    category TEXT,
+    raw_json TEXT NOT NULL,
+    ingest_run_date TEXT,
+    created_at TEXT NOT NULL
+);
+CREATE INDEX IF NOT EXISTS idx_news_items_ticker_date
+ON news_items (ticker, trade_date DESC, published_at DESC);
+"""
+
+
+def _json_dumps(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, sort_keys=True, default=str)
+
+
+def _resolve_news_id(ticker: str, item: CompanyNews, fallback_index: int) -> str:
+    base = item.url or item.title or f"{ticker}-{fallback_index}"
+    return f"{ticker}:{base}"
+
+
+def _resolve_trade_date(date_value: str | None) -> str | None:
+    if not date_value:
+        return None
+    normalized = str(date_value).strip()
+    if not normalized:
+        return None
+    if "T" in normalized:
+        return normalized.split("T", 1)[0]
+    if " " in normalized:
+        return normalized.split(" ", 1)[0]
+    return normalized[:10]
+
+
+class ResearchDb:
+    """Small SQLite helper for explain-oriented news storage."""
+
+    def __init__(self, db_path: Path):
+        self.db_path = Path(db_path)
+        self.db_path.parent.mkdir(parents=True, exist_ok=True)
+        self._init_db()
+
+    def _connect(self) -> sqlite3.Connection:
+        conn = sqlite3.connect(self.db_path)
+        conn.row_factory = sqlite3.Row
+        conn.execute("PRAGMA journal_mode=WAL")
+        conn.execute("PRAGMA foreign_keys=ON")
+        return conn
+
+    def _init_db(self):
+        with self._connect() as conn:
+            conn.executescript(SCHEMA)
+
+    def upsert_news_items(
+        self,
+        *,
+        ticker: str,
+        items: Iterable[CompanyNews],
+        ingest_run_date: str | None = None,
+    ) -> list[dict[str, Any]]:
+        """Persist provider news and return normalized rows."""
+        normalized_rows: list[dict[str, Any]] = []
+        timestamp = datetime.utcnow().isoformat(timespec="seconds")
+        symbol = str(ticker or "").strip().upper()
+        if not symbol:
+            return normalized_rows
+
+        with self._connect() as conn:
+            for index, item in enumerate(items):
+                news_id = _resolve_news_id(symbol, item, index)
+                trade_date = _resolve_trade_date(item.date)
+                payload = item.model_dump()
+                row = {
+                    "id": news_id,
+                    "ticker": symbol,
+                    "published_at": item.date,
+                    "trade_date": trade_date,
+                    "source": item.source,
+                    "title": item.title,
+                    "summary": item.summary,
+                    "url": item.url,
+                    "related": item.related,
+                    "category": item.category,
+                    "raw_json": _json_dumps(payload),
+                    "ingest_run_date": ingest_run_date,
+                    "created_at": timestamp,
+                }
+                conn.execute(
+                    """
+                    INSERT INTO news_items
+                    (id, ticker, published_at, trade_date, source, title, summary, url,
+                     related, category, raw_json, ingest_run_date, created_at)
+                    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    ON CONFLICT(id) DO UPDATE SET
+                        ticker = excluded.ticker,
+                        published_at = excluded.published_at,
+                        trade_date = excluded.trade_date,
+                        source = excluded.source,
+                        title = excluded.title,
+                        summary = excluded.summary,
+                        url = excluded.url,
+                        related = excluded.related,
+                        category = excluded.category,
+                        raw_json = excluded.raw_json,
+                        ingest_run_date = excluded.ingest_run_date
+                    """,
+                    (
+                        row["id"],
+                        row["ticker"],
+                        row["published_at"],
+                        row["trade_date"],
+                        row["source"],
+                        row["title"],
+                        row["summary"],
+                        row["url"],
+                        row["related"],
+                        row["category"],
+                        row["raw_json"],
+                        row["ingest_run_date"],
+                        row["created_at"],
+                    ),
+                )
+                normalized_rows.append(row)
+        return normalized_rows
+
+    def get_news_items(
+        self,
+        *,
+        ticker: str,
+        start_date: str | None = None,
+        end_date: str | None = None,
+        limit: int = 20,
+    ) -> list[dict[str, Any]]:
+        """Return normalized news rows for explain UI."""
+        symbol = str(ticker or "").strip().upper()
+        if not symbol:
+            return []
+
+        sql = """
+            SELECT id, ticker, published_at, trade_date, source, title, summary,
+                   url, related, category
+            FROM news_items
+            WHERE ticker = ?
+        """
+        params: list[Any] = [symbol]
+        if start_date:
+            sql += " AND COALESCE(trade_date, substr(published_at, 1, 10)) >= ?"
+            params.append(start_date)
+        if end_date:
+            sql += " AND COALESCE(trade_date, substr(published_at, 1, 10)) <= ?"
+            params.append(end_date)
+        sql += " ORDER BY COALESCE(published_at, trade_date) DESC LIMIT ?"
+        params.append(max(1, int(limit)))
+
+        with self._connect() as conn:
+            rows = conn.execute(sql, params).fetchall()
+
+        return [
+            {
+                "id": row["id"],
+                "ticker": row["ticker"],
+                "date": row["published_at"] or row["trade_date"],
+                "trade_date": row["trade_date"],
+                "source": row["source"],
+                "title": row["title"],
+                "summary": row["summary"],
+                "url": row["url"],
+                "related": row["related"],
+                "category": row["category"],
+            }
+            for row in rows
+        ]
+
+    def get_news_timeline(
+        self,
+        *,
+        ticker: str,
+        start_date: str | None = None,
+        end_date: str | None = None,
+    ) -> list[dict[str, Any]]:
+        """Aggregate news counts per trade date for chart markers."""
+        symbol = str(ticker or "").strip().upper()
+        if not symbol:
+            return []
+
+        sql = """
+            SELECT COALESCE(trade_date, substr(published_at, 1, 10)) AS date,
+                   COUNT(*) AS count,
+                   COUNT(DISTINCT source) AS source_count,
+                   MAX(title) AS top_title
+            FROM news_items
+            WHERE ticker = ?
+        """
+        params: list[Any] = [symbol]
+        if start_date:
+            sql += " AND COALESCE(trade_date, substr(published_at, 1, 10)) >= ?"
+            params.append(start_date)
+        if end_date:
+            sql += " AND COALESCE(trade_date, substr(published_at, 1, 10)) <= ?"
+            params.append(end_date)
+        sql += """
+            GROUP BY COALESCE(trade_date, substr(published_at, 1, 10))
+            ORDER BY date ASC
+        """
+
+        with self._connect() as conn:
+            rows = conn.execute(sql, params).fetchall()
+
+        return [
+            {
+                "date": row["date"],
+                "count": int(row["count"] or 0),
+                "source_count": int(row["source_count"] or 0),
+                "top_title": row["top_title"] or "",
+            }
+            for row in rows
+            if row["date"]
+        ]
+
+    def get_news_by_ids(
+        self,
+        *,
+        ticker: str,
+        article_ids: Iterable[str],
+    ) -> list[dict[str, Any]]:
+        """Return selected persisted news items."""
+        symbol = str(ticker or "").strip().upper()
+        ids = [str(article_id).strip() for article_id in article_ids if str(article_id).strip()]
+        if not symbol or not ids:
+            return []
+
+        placeholders = ",".join("?" for _ in ids)
+        sql = f"""
+            SELECT id, ticker, published_at, trade_date, source, title, summary,
+                   url, related, category
+            FROM news_items
+            WHERE ticker = ? AND id IN ({placeholders})
+            ORDER BY COALESCE(published_at, trade_date) DESC
+        """
+        with self._connect() as conn:
+            rows = conn.execute(sql, [symbol, *ids]).fetchall()
+
+        return [
+            {
+                "id": row["id"],
+                "ticker": row["ticker"],
+                "date": row["published_at"] or row["trade_date"],
+                "trade_date": row["trade_date"],
+                "source": row["source"],
+                "title": row["title"],
+                "summary": row["summary"],
+                "url": row["url"],
+                "related": row["related"],
+                "category": row["category"],
+            }
+            for row in rows
+        ]

backend/services/storage.py

@@ -10,6 +10,8 @@ from datetime import datetime
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 
+from backend.data.market_store import MarketStore
+from .research_db import ResearchDb
 from .runtime_db import RuntimeDb
 
 logger = logging.getLogger(__name__)
@@ -64,6 +66,8 @@ class StorageService:
         self.state_dir.mkdir(parents=True, exist_ok=True)
         self.server_state_file = self.state_dir / "server_state.json"
         self.runtime_db = RuntimeDb(self.state_dir / "runtime.db")
+        self.research_db = ResearchDb(self.state_dir / "research.db")
+        self.market_store = MarketStore()
 
         # Feed history (for agent messages)
         self.max_feed_history = 200

backend/tests/test_cli.py

@@ -0,0 +1,236 @@
+# -*- coding: utf-8 -*-
+from pathlib import Path
+
+from backend import cli
+
+
+def test_live_runs_incremental_market_store_update_before_start(monkeypatch, tmp_path):
+    project_root = tmp_path
+    (project_root / ".env").write_text("FINNHUB_API_KEY=test\n", encoding="utf-8")
+
+    calls = []
+
+    monkeypatch.setattr(cli, "get_project_root", lambda: project_root)
+    monkeypatch.setattr(cli, "handle_history_cleanup", lambda config_name, auto_clean=False: None)
+    monkeypatch.setattr(cli, "run_data_updater", lambda project_root: calls.append(("run_data_updater", project_root)))
+    monkeypatch.setattr(
+        cli,
+        "auto_update_market_store",
+        lambda config_name, end_date=None: calls.append(("auto_update_market_store", config_name, end_date)),
+    )
+    monkeypatch.setattr(
+        cli,
+        "auto_enrich_market_store",
+        lambda config_name, end_date=None, lookback_days=120, force=False: calls.append(
+            ("auto_enrich_market_store", config_name, end_date, lookback_days, force)
+        ),
+    )
+    monkeypatch.setattr(cli.os, "chdir", lambda path: calls.append(("chdir", Path(path))))
+
+    def fake_run(cmd, check=True, **kwargs):
+        calls.append(("subprocess.run", cmd, check))
+        return 0
+
+    monkeypatch.setattr(cli.subprocess, "run", fake_run)
+
+    cli.live(
+        mock=False,
+        config_name="smoke_fullstack",
+        host="0.0.0.0",
+        port=8765,
+        trigger_time="now",
+        poll_interval=10,
+        clean=False,
+        enable_memory=False,
+    )
+
+    assert any(item[0] == "run_data_updater" for item in calls)
+    assert any(
+        item[0] == "auto_update_market_store" and item[1] == "smoke_fullstack"
+        for item in calls
+    )
+    assert any(
+        item[0] == "auto_enrich_market_store" and item[1] == "smoke_fullstack"
+        for item in calls
+    )
+    run_call = next(item for item in calls if item[0] == "subprocess.run")
+    assert run_call[1][:6] == [
+        cli.sys.executable,
+        "-u",
+        "-m",
+        "backend.main",
+        "--mode",
+        "live",
+    ]
+
+
+def test_backtest_runs_full_market_store_prepare_before_start(monkeypatch, tmp_path):
+    project_root = tmp_path
+    calls = []
+
+    monkeypatch.setattr(cli, "get_project_root", lambda: project_root)
+    monkeypatch.setattr(cli, "handle_history_cleanup", lambda config_name, auto_clean=False: None)
+    monkeypatch.setattr(cli, "run_data_updater", lambda project_root: calls.append(("run_data_updater", project_root)))
+    monkeypatch.setattr(
+        cli,
+        "auto_prepare_backtest_market_store",
+        lambda config_name, start_date, end_date: calls.append(
+            ("auto_prepare_backtest_market_store", config_name, start_date, end_date)
+        ),
+    )
+    monkeypatch.setattr(
+        cli,
+        "auto_enrich_market_store",
+        lambda config_name, end_date=None, lookback_days=120, force=False: calls.append(
+            ("auto_enrich_market_store", config_name, end_date, lookback_days, force)
+        ),
+    )
+    monkeypatch.setattr(cli.os, "chdir", lambda path: calls.append(("chdir", Path(path))))
+
+    def fake_run(cmd, check=True, **kwargs):
+        calls.append(("subprocess.run", cmd, check))
+        return 0
+
+    monkeypatch.setattr(cli.subprocess, "run", fake_run)
+
+    cli.backtest(
+        start="2026-03-01",
+        end="2026-03-10",
+        config_name="smoke_fullstack",
+        host="0.0.0.0",
+        port=8765,
+        poll_interval=10,
+        clean=False,
+        enable_memory=False,
+    )
+
+    assert any(item[0] == "run_data_updater" for item in calls)
+    assert any(
+        item[0] == "auto_prepare_backtest_market_store"
+        and item[1:] == ("smoke_fullstack", "2026-03-01", "2026-03-10")
+        for item in calls
+    )
+    assert any(
+        item[0] == "auto_enrich_market_store"
+        and item[1] == "smoke_fullstack"
+        and item[2] == "2026-03-10"
+        for item in calls
+    )
+    run_call = next(item for item in calls if item[0] == "subprocess.run")
+    assert run_call[1][:6] == [
+        cli.sys.executable,
+        "-u",
+        "-m",
+        "backend.main",
+        "--mode",
+        "backtest",
+    ]
+
+
+def test_ingest_enrich_runs_batch_enrichment(monkeypatch):
+    calls = []
+
+    monkeypatch.setattr(cli, "_resolve_symbols", lambda raw_tickers, config_name=None: ["AAPL", "MSFT"])
+
+    class DummyStore:
+        pass
+
+    monkeypatch.setattr(cli, "MarketStore", lambda: DummyStore())
+    monkeypatch.setattr(
+        cli,
+        "enrich_symbols",
+        lambda store, symbols, start_date=None, end_date=None, limit=200, analysis_source="local", skip_existing=True: calls.append(
+            ("enrich_symbols", symbols, start_date, end_date, limit, analysis_source, skip_existing)
+        ) or [
+            {
+                "symbol": symbol,
+                "news_count": 3,
+                "queued_count": 3,
+                "analyzed": 3,
+                "skipped_existing_count": 0,
+                "deduped_count": 0,
+                "llm_count": 0,
+                "local_count": 3,
+            }
+            for symbol in symbols
+        ],
+    )
+
+    cli.ingest_enrich(
+        tickers=None,
+        start="2026-03-01",
+        end="2026-03-10",
+        limit=150,
+        force=False,
+        config_name="smoke_fullstack",
+    )
+
+    assert calls == [
+        ("enrich_symbols", ["AAPL", "MSFT"], "2026-03-01", "2026-03-10", 150, "local", True)
+    ]
+
+
+def test_ingest_report_reads_market_store_report(monkeypatch):
+    calls = []
+    printed = []
+
+    monkeypatch.setattr(cli, "_resolve_symbols", lambda raw_tickers, config_name=None: ["AAPL"])
+
+    class DummyStore:
+        def get_enrich_report(self, symbols=None, start_date=None, end_date=None):
+            calls.append(("get_enrich_report", symbols, start_date, end_date))
+            return [
+                {
+                    "symbol": "AAPL",
+                    "raw_news_count": 10,
+                    "analyzed_news_count": 8,
+                    "coverage_pct": 80.0,
+                    "llm_count": 5,
+                    "local_count": 3,
+                    "latest_trade_date": "2026-03-16",
+                    "latest_analysis_at": "2026-03-16T09:00:00",
+                }
+            ]
+
+    monkeypatch.setattr(cli, "MarketStore", lambda: DummyStore())
+    monkeypatch.setattr(cli, "get_explain_model_info", lambda: {"provider": "DASHSCOPE", "model_name": "qwen-max", "label": "DASHSCOPE:qwen-max"})
+    monkeypatch.setattr(cli, "llm_enrichment_enabled", lambda: True)
+    monkeypatch.setattr(cli.console, "print", lambda value: printed.append(value))
+
+    cli.ingest_report(
+        tickers=None,
+        start="2026-03-01",
+        end="2026-03-16",
+        config_name="smoke_fullstack",
+        only_problematic=False,
+    )
+
+    assert calls == [
+        ("get_enrich_report", ["AAPL"], "2026-03-01", "2026-03-16")
+    ]
+    assert printed
+    assert getattr(printed[0], "caption", "") == "Explain LLM: DASHSCOPE:qwen-max"
+
+
+def test_filter_problematic_report_rows_keeps_low_coverage_and_no_llm():
+    rows = [
+        {
+            "symbol": "AAPL",
+            "coverage_pct": 100.0,
+            "llm_count": 2,
+        },
+        {
+            "symbol": "MSFT",
+            "coverage_pct": 80.0,
+            "llm_count": 1,
+        },
+        {
+            "symbol": "NVDA",
+            "coverage_pct": 100.0,
+            "llm_count": 0,
+        },
+    ]
+
+    filtered = cli._filter_problematic_report_rows(rows)
+
+    assert [row["symbol"] for row in filtered] == ["MSFT", "NVDA"]

backend/tests/test_gateway_explain_handlers.py

@@ -0,0 +1,384 @@
+# -*- coding: utf-8 -*-
+import json
+from types import SimpleNamespace
+
+import pytest
+
+from backend.services.gateway import Gateway
+import backend.services.gateway as gateway_module
+
+
+class DummyWebSocket:
+    def __init__(self):
+        self.messages = []
+
+    async def send(self, payload: str):
+        self.messages.append(json.loads(payload))
+
+
+class DummyStateSync:
+    def __init__(self, current_date="2026-03-16"):
+        self.state = {"current_date": current_date}
+        self.system_messages = []
+
+    def set_broadcast_fn(self, _fn):
+        return None
+
+    def update_state(self, *_args, **_kwargs):
+        return None
+
+    async def on_system_message(self, message):
+        self.system_messages.append(message)
+
+
+class FakeMarketStore:
+    def __init__(self):
+        self.calls = []
+
+    def get_news_timeline_enriched(self, symbol, *, start_date=None, end_date=None):
+        self.calls.append(("get_news_timeline_enriched", symbol, start_date, end_date))
+        return [{"date": end_date, "count": 2, "source_count": 1, "top_title": "Top", "positive_count": 1}]
+
+    def get_news_items(self, symbol, *, start_date=None, end_date=None, limit=100):
+        self.calls.append(("get_news_items", symbol, start_date, end_date, limit))
+        return [
+            {
+                "id": "news-1",
+                "ticker": symbol,
+                "date": end_date,
+                "trade_date": end_date,
+                "title": "Title",
+                "summary": "Summary",
+                "source": "polygon",
+            }
+        ]
+
+    def get_news_items_enriched(self, symbol, *, start_date=None, end_date=None, trade_date=None, limit=100):
+        self.calls.append(("get_news_items_enriched", symbol, start_date, end_date, trade_date, limit))
+        target_date = trade_date or end_date
+        return [
+            {
+                "id": "news-1",
+                "ticker": symbol,
+                "date": target_date,
+                "trade_date": target_date,
+                "title": "Title",
+                "summary": "Summary",
+                "source": "polygon",
+                "sentiment": "negative",
+                "relevance": "high",
+                "key_discussion": "Key discussion",
+            }
+        ]
+
+    def get_news_by_ids_enriched(self, symbol, article_ids):
+        self.calls.append(("get_news_by_ids_enriched", symbol, list(article_ids)))
+        return [{"id": article_ids[0], "ticker": symbol, "date": "2026-03-16", "sentiment": "negative"}]
+
+    def get_news_categories_enriched(self, symbol, *, start_date=None, end_date=None, limit=200):
+        self.calls.append(("get_news_categories_enriched", symbol, start_date, end_date, limit))
+        return {"macro": {"label": "宏观", "count": 1, "article_ids": ["news-1"], "positive_ids": [], "negative_ids": ["news-1"], "neutral_ids": []}}
+
+    def get_story_cache(self, symbol, *, as_of_date):
+        self.calls.append(("get_story_cache", symbol, as_of_date))
+        return None
+
+    def upsert_story_cache(self, symbol, *, as_of_date, content, source="local"):
+        self.calls.append(("upsert_story_cache", symbol, as_of_date, source))
+
+    def delete_story_cache(self, symbol, *, as_of_date=None):
+        self.calls.append(("delete_story_cache", symbol, as_of_date))
+        return 1
+
+    def get_similar_day_cache(self, symbol, *, target_date):
+        self.calls.append(("get_similar_day_cache", symbol, target_date))
+        return None
+
+    def upsert_similar_day_cache(self, symbol, *, target_date, payload, source="local"):
+        self.calls.append(("upsert_similar_day_cache", symbol, target_date, source))
+
+    def delete_similar_day_cache(self, symbol, *, target_date=None):
+        self.calls.append(("delete_similar_day_cache", symbol, target_date))
+        return 1
+
+    def get_ohlc(self, symbol, start_date, end_date):
+        self.calls.append(("get_ohlc", symbol, start_date, end_date))
+        return [
+            {"date": start_date, "open": 100, "high": 105, "low": 99, "close": 103},
+            {"date": end_date, "open": 103, "high": 108, "low": 102, "close": 107},
+        ]
+
+
+def make_gateway(market_store=None):
+    storage = SimpleNamespace(market_store=market_store or FakeMarketStore())
+    pipeline = SimpleNamespace(state_sync=None)
+    market_service = SimpleNamespace()
+    state_sync = DummyStateSync()
+    return Gateway(
+        market_service=market_service,
+        storage_service=storage,
+        pipeline=pipeline,
+        state_sync=state_sync,
+        config={"mode": "live"},
+    )
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_news_timeline_uses_market_store_symbol_argument():
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    await gateway._handle_get_stock_news_timeline(
+        websocket,
+        {"ticker": "AAPL", "lookback_days": 30},
+    )
+
+    assert market_store.calls == [
+        ("get_news_timeline_enriched", "AAPL", "2026-02-14", "2026-03-16")
+    ]
+    assert websocket.messages[-1]["type"] == "stock_news_timeline_loaded"
+    assert websocket.messages[-1]["ticker"] == "AAPL"
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_news_categories_uses_market_store_symbol_argument(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    await gateway._handle_get_stock_news_categories(
+        websocket,
+        {"ticker": "AAPL", "lookback_days": 30},
+    )
+
+    assert market_store.calls == [
+        ("get_news_items_enriched", "AAPL", "2026-02-14", "2026-03-16", None, 200),
+        ("get_news_categories_enriched", "AAPL", "2026-02-14", "2026-03-16", 200)
+    ]
+    assert websocket.messages[-1]["type"] == "stock_news_categories_loaded"
+    assert websocket.messages[-1]["categories"]["macro"]["count"] == 1
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_range_explain_uses_market_store_rows(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    def fake_build_range_explanation(*, ticker, start_date, end_date, news_rows):
+        return {
+            "ticker": ticker,
+            "start_date": start_date,
+            "end_date": end_date,
+            "news_count": len(news_rows),
+        }
+
+    monkeypatch.setattr(
+        gateway_module,
+        "build_range_explanation",
+        fake_build_range_explanation,
+    )
+
+    await gateway._handle_get_stock_range_explain(
+        websocket,
+        {"ticker": "AAPL", "start_date": "2026-03-10", "end_date": "2026-03-16"},
+    )
+
+    assert market_store.calls == [
+        ("get_news_items_enriched", "AAPL", "2026-03-10", "2026-03-16", None, 100)
+    ]
+    assert websocket.messages[-1] == {
+        "type": "stock_range_explain_loaded",
+        "ticker": "AAPL",
+        "result": {
+            "ticker": "AAPL",
+            "start_date": "2026-03-10",
+            "end_date": "2026-03-16",
+            "news_count": 1,
+        },
+    }
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_range_explain_uses_article_ids_path(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    monkeypatch.setattr(
+        gateway_module,
+        "build_range_explanation",
+        lambda **kwargs: {"news_count": len(kwargs["news_rows"])},
+    )
+
+    await gateway._handle_get_stock_range_explain(
+        websocket,
+        {
+            "ticker": "AAPL",
+            "start_date": "2026-03-10",
+            "end_date": "2026-03-16",
+            "article_ids": ["news-99"],
+        },
+    )
+
+    assert market_store.calls == [("get_news_by_ids_enriched", "AAPL", ["news-99"])]
+    assert websocket.messages[-1]["result"]["news_count"] == 1
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_news_for_date_uses_trade_date_lookup():
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    await gateway._handle_get_stock_news_for_date(
+        websocket,
+        {"ticker": "AAPL", "date": "2026-03-16", "limit": 10},
+    )
+
+    assert market_store.calls == [
+        ("get_news_items_enriched", "AAPL", None, None, "2026-03-16", 10)
+    ]
+    assert websocket.messages[-1]["type"] == "stock_news_for_date_loaded"
+    assert websocket.messages[-1]["date"] == "2026-03-16"
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_story_returns_story_payload(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    monkeypatch.setattr(
+        gateway_module,
+        "enrich_news_for_symbol",
+        lambda *args, **kwargs: {"symbol": "AAPL", "analyzed": 3},
+    )
+
+    await gateway._handle_get_stock_story(
+        websocket,
+        {"ticker": "AAPL", "as_of_date": "2026-03-16"},
+    )
+
+    assert websocket.messages[-1]["type"] == "stock_story_loaded"
+    assert websocket.messages[-1]["ticker"] == "AAPL"
+    assert "AAPL Story" in websocket.messages[-1]["story"]
+
+
+@pytest.mark.asyncio
+async def test_handle_get_stock_similar_days_returns_items(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    monkeypatch.setattr(
+        gateway_module,
+        "enrich_news_for_symbol",
+        lambda *args, **kwargs: {"symbol": "AAPL", "analyzed": 3},
+    )
+
+    await gateway._handle_get_stock_similar_days(
+        websocket,
+        {"ticker": "AAPL", "date": "2026-03-16", "top_k": 5},
+    )
+
+    assert websocket.messages[-1]["type"] == "stock_similar_days_loaded"
+    assert websocket.messages[-1]["ticker"] == "AAPL"
+    assert isinstance(websocket.messages[-1]["items"], list)
+
+
+@pytest.mark.asyncio
+async def test_handle_run_stock_enrich_rebuilds_caches(monkeypatch):
+    market_store = FakeMarketStore()
+    gateway = make_gateway(market_store)
+    websocket = DummyWebSocket()
+
+    monkeypatch.setattr(
+        gateway_module,
+        "enrich_news_for_symbol",
+        lambda *args, **kwargs: {"symbol": "AAPL", "analyzed": 2, "queued_count": 2},
+    )
+
+    await gateway._handle_run_stock_enrich(
+        websocket,
+        {
+            "ticker": "AAPL",
+            "start_date": "2026-03-10",
+            "end_date": "2026-03-16",
+            "force": True,
+            "rebuild_story": True,
+            "rebuild_similar_days": True,
+            "story_date": "2026-03-16",
+            "target_date": "2026-03-16",
+        },
+    )
+
+    assert ("delete_story_cache", "AAPL", "2026-03-16") in market_store.calls
+    assert ("delete_similar_day_cache", "AAPL", "2026-03-16") in market_store.calls
+    assert websocket.messages[-1]["type"] == "stock_enrich_completed"
+    assert websocket.messages[-1]["stats"]["analyzed"] == 2
+
+
+@pytest.mark.asyncio
+async def test_handle_run_stock_enrich_rejects_local_to_llm_without_llm(monkeypatch):
+    gateway = make_gateway(FakeMarketStore())
+    websocket = DummyWebSocket()
+
+    monkeypatch.setattr(gateway_module, "llm_enrichment_enabled", lambda: False)
+
+    await gateway._handle_run_stock_enrich(
+        websocket,
+        {
+            "ticker": "AAPL",
+            "start_date": "2026-03-10",
+            "end_date": "2026-03-16",
+            "only_local_to_llm": True,
+        },
+    )
+
+    assert websocket.messages[-1]["type"] == "stock_enrich_completed"
+    assert "requires EXPLAIN_ENRICH_USE_LLM=true" in websocket.messages[-1]["error"]
+
+
+def test_schedule_watchlist_market_store_refresh_creates_task(monkeypatch):
+    gateway = make_gateway()
+    captured = {}
+
+    class DummyTask:
+        def done(self):
+            return False
+
+        def cancel(self):
+            captured["cancelled"] = True
+
+    def fake_create_task(coro):
+        captured["coro_name"] = coro.cr_code.co_name
+        coro.close()
+        return DummyTask()
+
+    monkeypatch.setattr(gateway_module.asyncio, "create_task", fake_create_task)
+
+    gateway._schedule_watchlist_market_store_refresh(["AAPL", "MSFT"])
+
+    assert captured["coro_name"] == "_refresh_market_store_for_watchlist"
+
+
+@pytest.mark.asyncio
+async def test_refresh_market_store_for_watchlist_emits_system_messages(monkeypatch):
+    gateway = make_gateway()
+
+    monkeypatch.setattr(
+        gateway_module,
+        "ingest_symbols",
+        lambda symbols, mode="incremental": [
+            {"symbol": symbol, "prices": 3, "news": 4, "aligned": 4}
+            for symbol in symbols
+        ],
+    )
+
+    await gateway._refresh_market_store_for_watchlist(["AAPL", "MSFT"])
+
+    assert gateway.state_sync.system_messages[0] == "正在同步自选股市场数据: AAPL, MSFT"
+    assert "自选股市场数据已同步:" in gateway.state_sync.system_messages[1]
+    assert "AAPL prices=3 news=4" in gateway.state_sync.system_messages[1]

backend/tests/test_historical_price_manager.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+from unittest.mock import patch
+
+import pandas as pd
+
+from backend.data.historical_price_manager import HistoricalPriceManager
+
+
+def test_preload_data_prefers_market_db():
+    manager = HistoricalPriceManager()
+    manager.subscribe(["AAPL"])
+
+    market_rows = [
+        {
+            "symbol": "AAPL",
+            "date": "2026-03-09",
+            "open": 100.0,
+            "high": 103.0,
+            "low": 99.0,
+            "close": 102.0,
+            "volume": 10_000,
+            "vwap": 101.0,
+            "transactions": 500,
+            "source": "polygon",
+        }
+    ]
+
+    with (
+        patch.object(manager._market_store, "get_ohlc", return_value=market_rows),
+        patch.object(manager._router, "load_local_price_frame") as load_csv,
+    ):
+        manager.preload_data("2026-03-01", "2026-03-10")
+
+    load_csv.assert_not_called()
+    assert "AAPL" in manager._price_cache
+    assert float(manager._price_cache["AAPL"].iloc[0]["close"]) == 102.0
+
+
+def test_preload_data_falls_back_to_csv():
+    manager = HistoricalPriceManager()
+    manager.subscribe(["MSFT"])
+
+    csv_df = pd.DataFrame(
+        {
+            "time": ["2026-03-09"],
+            "open": [200.0],
+            "high": [205.0],
+            "low": [198.0],
+            "close": [204.0],
+            "volume": [20_000],
+        }
+    )
+    csv_df["time"] = pd.to_datetime(csv_df["time"])
+    csv_df["Date"] = csv_df["time"]
+    csv_df.set_index("Date", inplace=True)
+
+    with (
+        patch.object(manager._market_store, "get_ohlc", return_value=[]),
+        patch.object(manager._router, "load_local_price_frame", return_value=csv_df) as load_csv,
+    ):
+        manager.preload_data("2026-03-01", "2026-03-10")
+
+    load_csv.assert_called_once_with("MSFT")
+    assert "MSFT" in manager._price_cache
+    assert float(manager._price_cache["MSFT"].iloc[0]["close"]) == 204.0

backend/tests/test_llm_enricher.py

@@ -0,0 +1,133 @@
+# -*- coding: utf-8 -*-
+
+from backend.enrich import llm_enricher
+
+
+class DummyResponse:
+    def __init__(self, metadata):
+        self.metadata = metadata
+
+
+class DummyModel:
+    def __init__(self, metadata):
+        self.metadata = metadata
+        self.calls = []
+
+    async def __call__(self, messages, structured_model=None, **kwargs):
+        self.calls.append(
+            {
+                "messages": messages,
+                "structured_model": structured_model,
+                "kwargs": kwargs,
+            }
+        )
+        return DummyResponse(self.metadata)
+
+
+def test_analyze_news_row_with_llm_uses_agentscope_model(monkeypatch):
+    model = DummyModel(
+        {
+            "id": "news-1",
+            "relevance": "high",
+            "sentiment": "positive",
+            "key_discussion": "Demand remains resilient",
+            "summary": "Structured summary",
+            "reason_growth": "Orders improved",
+            "reason_decrease": "",
+        }
+    )
+    monkeypatch.setattr(llm_enricher, "llm_enrichment_enabled", lambda: True)
+    monkeypatch.setattr(llm_enricher, "_get_explain_model", lambda: model)
+    monkeypatch.setattr(
+        llm_enricher,
+        "get_explain_model_info",
+        lambda: {"provider": "DASHSCOPE", "model_name": "qwen-max", "label": "DASHSCOPE:qwen-max"},
+    )
+
+    result = llm_enricher.analyze_news_row_with_llm(
+        {
+            "id": "news-1",
+            "title": "Apple expands AI features",
+            "summary": "New devices and software updates were announced.",
+        }
+    )
+
+    assert result["sentiment"] == "positive"
+    assert result["summary"] == "Structured summary"
+    assert result["raw_json"]["model_label"] == "DASHSCOPE:qwen-max"
+    assert model.calls
+    assert model.calls[0]["structured_model"] is llm_enricher.EnrichedNewsItem
+
+
+def test_analyze_news_rows_with_llm_uses_agentscope_structured_batch(monkeypatch):
+    model = DummyModel(
+        {
+            "items": [
+                {
+                    "id": "news-1",
+                    "relevance": "high",
+                    "sentiment": "negative",
+                    "key_discussion": "Margin pressure",
+                    "summary": "Batch summary",
+                    "reason_growth": "",
+                    "reason_decrease": "Costs rose",
+                }
+            ]
+        }
+    )
+    monkeypatch.setattr(llm_enricher, "llm_enrichment_enabled", lambda: True)
+    monkeypatch.setattr(llm_enricher, "_get_explain_model", lambda: model)
+    monkeypatch.setattr(
+        llm_enricher,
+        "get_explain_model_info",
+        lambda: {"provider": "DASHSCOPE", "model_name": "qwen-max", "label": "DASHSCOPE:qwen-max"},
+    )
+
+    result = llm_enricher.analyze_news_rows_with_llm(
+        [
+            {
+                "id": "news-1",
+                "title": "Apple margins pressured",
+                "summary": "Costs increased this quarter.",
+            }
+        ]
+    )
+
+    assert result["news-1"]["sentiment"] == "negative"
+    assert result["news-1"]["reason_decrease"] == "Costs rose"
+    assert result["news-1"]["raw_json"]["model_label"] == "DASHSCOPE:qwen-max"
+    assert model.calls
+    assert model.calls[0]["structured_model"] is llm_enricher.EnrichedNewsBatch
+
+
+def test_analyze_range_with_llm_uses_agentscope_structured_output(monkeypatch):
+    model = DummyModel(
+        {
+            "summary": "该股在区间内震荡下行，相关新闻主要集中在盈利预期和供应链扰动。",
+            "trend_analysis": "前半段受利空新闻压制，后半段跌幅收敛。",
+            "bullish_factors": ["估值消化后出现部分承接"],
+            "bearish_factors": ["盈利预期下修", "供应链扰动持续"],
+        }
+    )
+    monkeypatch.setattr(llm_enricher, "llm_range_analysis_enabled", lambda: True)
+    monkeypatch.setattr(llm_enricher, "_get_explain_model", lambda: model)
+    monkeypatch.setattr(
+        llm_enricher,
+        "get_explain_model_info",
+        lambda: {"provider": "DASHSCOPE", "model_name": "qwen-max", "label": "DASHSCOPE:qwen-max"},
+    )
+
+    result = llm_enricher.analyze_range_with_llm(
+        {
+            "ticker": "AAPL",
+            "start_date": "2026-03-10",
+            "end_date": "2026-03-16",
+            "price_change_pct": -3.42,
+        }
+    )
+
+    assert result["summary"].startswith("该股在区间内震荡下行")
+    assert result["model_label"] == "DASHSCOPE:qwen-max"
+    assert result["bearish_factors"] == ["盈利预期下修", "供应链扰动持续"]
+    assert model.calls
+    assert model.calls[0]["structured_model"] is llm_enricher.RangeAnalysisPayload

backend/tests/test_market_store_report.py

@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+
+from pathlib import Path
+
+from backend.data.market_store import MarketStore
+
+
+def test_get_enrich_report_summarizes_coverage(tmp_path: Path):
+    store = MarketStore(tmp_path / "market_research.db")
+    store.upsert_news(
+        "AAPL",
+        [
+            {
+                "id": "news-1",
+                "published_utc": "2026-03-10T12:00:00Z",
+                "title": "Apple earnings beat",
+                "summary": "Revenue topped expectations",
+                "tickers": ["AAPL"],
+            },
+            {
+                "id": "news-2",
+                "published_utc": "2026-03-11T12:00:00Z",
+                "title": "Apple supply chain warning",
+                "summary": "Outlook softened",
+                "tickers": ["AAPL"],
+            },
+        ],
+    )
+    store.set_trade_dates(
+        [
+            {"news_id": "news-1", "symbol": "AAPL", "trade_date": "2026-03-10"},
+            {"news_id": "news-2", "symbol": "AAPL", "trade_date": "2026-03-11"},
+        ]
+    )
+    store.upsert_news_analysis(
+        "AAPL",
+        [
+            {
+                "news_id": "news-1",
+                "trade_date": "2026-03-10",
+                "summary": "LLM enriched",
+                "analysis_source": "llm",
+            }
+        ],
+        analysis_source="llm",
+    )
+
+    rows = store.get_enrich_report(["AAPL"])
+    assert len(rows) == 1
+    assert rows[0]["symbol"] == "AAPL"
+    assert rows[0]["raw_news_count"] == 2
+    assert rows[0]["analyzed_news_count"] == 1
+    assert rows[0]["coverage_pct"] == 50.0
+    assert rows[0]["llm_count"] == 1

backend/tests/test_news_enricher.py

@@ -0,0 +1,174 @@
+# -*- coding: utf-8 -*-
+
+from backend.enrich import news_enricher
+
+
+def test_classify_news_row_falls_back_to_local_rules(monkeypatch):
+    monkeypatch.setattr(news_enricher, "analyze_news_row_with_llm", lambda row: None)
+    result = news_enricher.classify_news_row(
+        {
+            "title": "Apple shares drop after weak guidance",
+            "summary": "Investors reacted negatively to softer-than-expected outlook.",
+        }
+    )
+    assert result["analysis_source"] == "local"
+    assert result["sentiment"] == "negative"
+    assert result["summary"]
+
+
+def test_classify_news_row_prefers_llm_when_available(monkeypatch):
+    monkeypatch.setattr(
+        news_enricher,
+        "analyze_news_row_with_llm",
+        lambda row: {
+            "relevance": "high",
+            "sentiment": "positive",
+            "key_discussion": "Demand resilience",
+            "summary": "LLM summary",
+            "reason_growth": "Orders remain strong",
+            "reason_decrease": "",
+            "raw_json": {"provider": "llm"},
+        },
+    )
+    result = news_enricher.classify_news_row(
+        {
+            "title": "Apple expands AI features",
+            "summary": "New devices and software updates were announced.",
+        }
+    )
+    assert result["analysis_source"] == "llm"
+    assert result["sentiment"] == "positive"
+    assert result["summary"] == "LLM summary"
+
+
+def test_build_analysis_rows_prefers_batch_llm_and_dedupes(monkeypatch):
+    monkeypatch.setattr(news_enricher, "llm_enrichment_enabled", lambda: True)
+    monkeypatch.setattr(news_enricher, "get_env_int", lambda key, default=0: 8)
+    monkeypatch.setattr(
+        news_enricher,
+        "analyze_news_rows_with_llm",
+        lambda rows: {
+            "news-1": {
+                "relevance": "high",
+                "sentiment": "positive",
+                "key_discussion": "Batch result",
+                "summary": "Batch summary",
+                "reason_growth": "Growth",
+                "reason_decrease": "",
+                "raw_json": {"provider": "batch"},
+            }
+        },
+    )
+    monkeypatch.setattr(news_enricher, "analyze_news_row_with_llm", lambda row: None)
+    rows = news_enricher.build_analysis_rows(
+        symbol="AAPL",
+        news_rows=[
+            {"id": "news-1", "trade_date": "2026-03-10", "title": "Same title", "summary": "Same summary"},
+            {"id": "news-2", "trade_date": "2026-03-10", "title": "Same title", "summary": "Same summary"},
+        ],
+        ohlc_rows=[],
+    )
+    rows, stats = rows
+    assert len(rows) == 1
+    assert rows[0]["analysis_source"] == "llm"
+    assert rows[0]["summary"] == "Batch summary"
+    assert stats["deduped_count"] == 1
+    assert stats["llm_count"] == 1
+
+
+def test_enrich_news_for_symbol_skips_existing(monkeypatch):
+    class DummyStore:
+        def get_news_items(self, symbol, start_date=None, end_date=None, limit=200):
+            return [
+                {"id": "news-1", "trade_date": "2026-03-10", "title": "One", "summary": "One"},
+                {"id": "news-2", "trade_date": "2026-03-11", "title": "Two", "summary": "Two"},
+            ]
+
+        def get_analyzed_news_ids(self, symbol, start_date=None, end_date=None):
+            return {"news-1"}
+
+        def get_ohlc(self, symbol, start_date, end_date):
+            return []
+
+        def upsert_news_analysis(self, symbol, rows, analysis_source="local"):
+            self.rows = rows
+            return len(rows)
+
+    monkeypatch.setattr(
+        news_enricher,
+        "build_analysis_rows",
+        lambda symbol, news_rows, ohlc_rows: (
+            [
+                {
+                    "news_id": row["id"],
+                    "trade_date": row["trade_date"],
+                    "summary": row["summary"],
+                    "analysis_source": "local",
+                }
+                for row in news_rows
+            ],
+            {"deduped_count": 0, "llm_count": 0, "local_count": len(news_rows)},
+        ),
+    )
+    store = DummyStore()
+    result = news_enricher.enrich_news_for_symbol(store, "AAPL")
+    assert result["news_count"] == 2
+    assert result["queued_count"] == 1
+    assert result["skipped_existing_count"] == 1
+    assert len(store.rows) == 1
+    assert store.rows[0]["news_id"] == "news-2"
+
+
+def test_enrich_news_for_symbol_only_reanalyzes_local(monkeypatch):
+    class DummyStore:
+        def get_news_items(self, symbol, start_date=None, end_date=None, limit=200):
+            return [
+                {"id": "news-1", "trade_date": "2026-03-10", "title": "One", "summary": "One"},
+                {"id": "news-2", "trade_date": "2026-03-11", "title": "Two", "summary": "Two"},
+                {"id": "news-3", "trade_date": "2026-03-12", "title": "Three", "summary": "Three"},
+            ]
+
+        def get_analyzed_news_sources(self, symbol, start_date=None, end_date=None):
+            return {"news-1": "local", "news-2": "llm"}
+
+        def get_ohlc(self, symbol, start_date, end_date):
+            return []
+
+        def upsert_news_analysis(self, symbol, rows, analysis_source="local"):
+            self.rows = rows
+            return len(rows)
+
+    monkeypatch.setattr(
+        news_enricher,
+        "build_analysis_rows",
+        lambda symbol, news_rows, ohlc_rows: (
+            [
+                {
+                    "news_id": row["id"],
+                    "trade_date": row["trade_date"],
+                    "summary": row["summary"],
+                    "analysis_source": "llm" if row["id"] == "news-1" else "local",
+                }
+                for row in news_rows
+            ],
+            {"deduped_count": 0, "llm_count": 1, "local_count": 0},
+        ),
+    )
+
+    store = DummyStore()
+    result = news_enricher.enrich_news_for_symbol(
+        store,
+        "AAPL",
+        only_reanalyze_local=True,
+    )
+
+    assert result["news_count"] == 3
+    assert result["queued_count"] == 1
+    assert result["skipped_existing_count"] == 2
+    assert result["only_reanalyze_local"] is True
+    assert result["upgraded_local_to_llm_count"] == 1
+    assert result["execution_summary"]["upgraded_dates"] == ["2026-03-10"]
+    assert result["execution_summary"]["remaining_local_titles"] == []
+    assert result["execution_summary"]["skipped_missing_analysis_count"] == 1
+    assert result["execution_summary"]["skipped_non_local_count"] == 1
+    assert [row["news_id"] for row in store.rows] == ["news-1"]

backend/tests/test_range_explainer.py

@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+
+from types import SimpleNamespace
+
+from backend.explain import range_explainer
+
+
+def test_build_range_explanation_prefers_llm_text_when_available(monkeypatch):
+    monkeypatch.setattr(
+        range_explainer,
+        "get_prices",
+        lambda ticker, start_date, end_date: [
+            SimpleNamespace(open=100, close=98, high=102, low=97, volume=1000),
+            SimpleNamespace(open=98, close=96, high=99, low=95, volume=1100),
+            SimpleNamespace(open=96, close=97, high=98, low=94, volume=1200),
+        ],
+    )
+    monkeypatch.setattr(
+        range_explainer,
+        "analyze_range_with_llm",
+        lambda payload: {
+            "summary": "区间内整体偏弱，主题集中在盈利预期和供应链风险。",
+            "trend_analysis": "前半段快速下探，后半段出现修复。",
+            "bullish_factors": ["回调后出现承接"],
+            "bearish_factors": ["盈利预期承压"],
+            "model_label": "DASHSCOPE:qwen-max",
+        },
+    )
+
+    result = range_explainer.build_range_explanation(
+        ticker="AAPL",
+        start_date="2026-03-10",
+        end_date="2026-03-16",
+        news_rows=[
+            {
+                "id": "news-1",
+                "trade_date": "2026-03-10",
+                "title": "Apple margin pressure concerns grow",
+                "summary": "Investors focused on weaker margin outlook.",
+                "sentiment": "negative",
+                "relevance": "high",
+                "ret_t0": -0.02,
+                "reason_decrease": "盈利预期承压",
+                "category": "earnings",
+            }
+        ],
+    )
+
+    assert result["analysis"]["summary"] == "区间内整体偏弱，主题集中在盈利预期和供应链风险。"
+    assert result["analysis"]["trend_analysis"] == "前半段快速下探，后半段出现修复。"
+    assert result["analysis"]["bullish_factors"] == ["回调后出现承接"]
+    assert result["analysis"]["analysis_source"] == "llm"
+    assert result["analysis"]["analysis_model_label"] == "DASHSCOPE:qwen-max"
+    assert result["news_count"] == 1

env.template

@@ -13,11 +13,17 @@ FIN_DATA_SOURCE =  # Preferred source: finnhub / financial_datasets / yfinance /
 ENABLED_DATA_SOURCES =  # Optional allowlist, comma-separated, e.g. financial_datasets,finnhub,yfinance,local_csv | 可启用数据源列表
 FINANCIAL_DATASETS_API_KEY= #required | 必填
 FINNHUB_API_KEY= #optional | 可选
+POLYGON_API_KEY= #optional for market warehouse ingest | Polygon长期市场库采集可选
+MARKET_DB_PATH= #optional path for long-lived market_research.db | 长期市场数据库路径可选
 
 # Model API
 OPENAI_API_KEY=
 OPENAI_BASE_URL=
 MODEL_NAME=qwen3-max-preview
+EXPLAIN_ENRICH_USE_LLM=false
+EXPLAIN_ENRICH_MODEL_PROVIDER=
+EXPLAIN_ENRICH_MODEL_NAME=
+EXPLAIN_RANGE_USE_LLM=
 
 #记忆模块（Embedding and llm calls for Reme memory)
 # default to use aliyun dashscope url, more details: https://help.aliyun.com/zh/model-studio/what-is-model-studio

frontend/package.json

@@ -7,6 +7,8 @@
     "dev": "vite",
     "build": "vite build",
     "lint": "eslint .",
+    "test": "vitest run",
+    "test:watch": "vitest",
     "preview": "vite preview",
     "preview:host": "vite preview --host"
   },
@@ -37,6 +39,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.33.0",
+    "@testing-library/react": "^16.3.2",
     "@types/react": "^19.1.13",
     "@types/react-dom": "^19.1.9",
     "@vitejs/plugin-react": "^5.0.0",
@@ -45,11 +48,13 @@
     "eslint-plugin-react-hooks": "^5.2.0",
     "eslint-plugin-react-refresh": "^0.4.20",
     "globals": "^16.3.0",
+    "jsdom": "^29.0.0",
     "postcss": "^8.5.6",
     "tailwindcss": "^3.4.17",
     "tailwindcss-animate": "^1.0.7",
     "typescript": "^5.9.2",
     "vite": "^7.1.2",
-    "vite-tsconfig-paths": "^5.1.4"
+    "vite-tsconfig-paths": "^5.1.4",
+    "vitest": "^4.1.0"
   }
 }

frontend/src/App.jsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useMemo, useRef, useState, useCallback } from "react";
+import React, { Suspense, lazy, useEffect, useMemo, useRef, useState, useCallback } from "react";
 
 // Configuration and constants
 import { AGENTS, INITIAL_TICKERS } from './config/constants';
@@ -13,19 +13,40 @@ import { useFeedProcessor } from './hooks/useFeedProcessor';
 import GlobalStyles from './styles/GlobalStyles';
 
 // Components
-import RoomView from './components/RoomView';
 import NetValueChart from './components/NetValueChart';
-import AgentFeed from './components/AgentFeed';
 import StockLogo from './components/StockLogo';
-import StatisticsView from './components/StatisticsView';
-import PerformanceView from './components/PerformanceView';
-import StockExplainView from './components/StockExplainView.jsx';
 import Header from './components/Header.jsx';
 import WatchlistPanel from './components/WatchlistPanel.jsx';
 
 // Utils
 import { formatNumber, formatTickerPrice } from './utils/formatters';
 
+const RoomView = lazy(() => import('./components/RoomView'));
+const AgentFeed = lazy(() => import('./components/AgentFeed'));
+const StatisticsView = lazy(() => import('./components/StatisticsView'));
+const StockExplainView = lazy(() => import('./components/StockExplainView.jsx'));
+
+function ViewLoadingFallback({ label = '加载中...' }) {
+  return (
+    <div
+      style={{
+        minHeight: 240,
+        height: '100%',
+        display: 'flex',
+        alignItems: 'center',
+        justifyContent: 'center',
+        border: '1px solid #000000',
+        background: '#ffffff',
+        fontSize: 12,
+        fontWeight: 700,
+        letterSpacing: 0.4
+      }}
+    >
+      {label}
+    </div>
+  );
+}
+
 /**
  * Live Trading Intelligence Platform - Read-Only Dashboard
  * Geek Style - Terminal-inspired, minimal, monochrome
@@ -73,6 +94,7 @@ export default function LiveTradingApp() {
   const [priceHistoryByTicker, setPriceHistoryByTicker] = useState({});
   const [ohlcHistoryByTicker, setOhlcHistoryByTicker] = useState({});
   const [explainEventsByTicker, setExplainEventsByTicker] = useState({});
+  const [newsByTicker, setNewsByTicker] = useState({});
   const [selectedExplainSymbol, setSelectedExplainSymbol] = useState('');
   const [historySourceByTicker, setHistorySourceByTicker] = useState({});
 
@@ -237,35 +259,59 @@ export default function LiveTradingApp() {
 
     const raw = typeof marketStatus.status_text === 'string' ? marketStatus.status_text.trim() : '';
     const normalized = raw.toLowerCase();
-    if (normalized === 'market closed (non-trading day)') {
-      return '休市';
+    const byStatus = {
+      open: '开盘',
+      closed: '休市',
+      premarket: '盘前',
+      afterhours: '盘后',
+    };
+    const byText = {
+      'market closed (non-trading day)': '休市',
+      'market open': '开盘',
+      'market closed': '收盘',
+      'pre-market': '盘前',
+      'after-hours': '盘后',
+      'after hours': '盘后',
+      'backtest mode': '回测模式',
+    };
+    if (normalized && byText[normalized]) {
+      return byText[normalized];
     }
-    if (normalized === 'market open') {
-      return '开盘';
+    if (marketStatus.status && byStatus[marketStatus.status]) {
+      return byStatus[marketStatus.status];
     }
-    if (normalized === 'market closed') {
-      return '收盘';
-    }
-
-    return raw || (marketStatus.status === 'open' ? '开盘' : '收盘');
+    return raw || '状态未知';
   }, [marketStatus]);
 
-  const priceSourceLabel = useMemo(() => {
+  const providerLabelMap = useMemo(() => ({
+    yfinance: 'YFinance',
+    finnhub: 'Finnhub',
+    financial_datasets: 'Financial Datasets',
+    local_csv: 'CSV',
+    polygon: 'Polygon',
+    mock: 'Mock',
+    backtest: 'Backtest'
+  }), []);
+
+  const livePriceSourceLabel = useMemo(() => {
+    const source = marketStatus?.live_quote_provider;
+    if (!source) {
+      return null;
+    }
+
+    const normalized = String(source).trim().toLowerCase();
+    return `实时 ${providerLabelMap[normalized] || String(source).trim()}`;
+  }, [marketStatus, providerLabelMap]);
+
+  const historicalPriceSourceLabel = useMemo(() => {
     const source = dataSources?.last_success?.prices;
     if (!source) {
       return null;
     }
 
     const normalized = String(source).trim().toLowerCase();
-    const labels = {
-      yfinance: '数据源 Yahoo',
-      finnhub: '数据源 Finnhub',
-      financial_datasets: '数据源 Financial Datasets',
-      local_csv: '数据源 CSV'
-    };
-
-    return labels[normalized] || `数据源 ${String(source).trim()}`;
-  }, [dataSources]);
+    return `历史 ${providerLabelMap[normalized] || String(source).trim()}`;
+  }, [dataSources, providerLabelMap]);
 
   const parseWatchlistInput = useCallback((value) => {
     if (typeof value !== 'string') {
@@ -413,6 +459,131 @@ export default function LiveTradingApp() {
     });
   }, []);
 
+  const requestStockNews = useCallback((symbol) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_news',
+      ticker: normalized,
+      lookback_days: 45,
+      limit: 12
+    });
+  }, []);
+
+  const requestStockNewsForDate = useCallback((symbol, date) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !date || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_news_for_date',
+      ticker: normalized,
+      date,
+      limit: 20
+    });
+  }, []);
+
+  const requestStockNewsTimeline = useCallback((symbol) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_news_timeline',
+      ticker: normalized,
+      lookback_days: 90
+    });
+  }, []);
+
+  const requestStockNewsCategories = useCallback((symbol) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_news_categories',
+      ticker: normalized,
+      lookback_days: 90
+    });
+  }, []);
+
+  const requestStockRangeExplain = useCallback((symbol, startDate, endDate, articleIds = []) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !startDate || !endDate || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_range_explain',
+      ticker: normalized,
+      start_date: startDate,
+      end_date: endDate,
+      article_ids: Array.isArray(articleIds) ? articleIds : []
+    });
+  }, []);
+
+  const requestStockStory = useCallback((symbol, asOfDate = null) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_story',
+      ticker: normalized,
+      as_of_date: asOfDate
+    });
+  }, []);
+
+  const requestStockSimilarDays = useCallback((symbol, date, topK = 8) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !date || !clientRef.current) {
+      return false;
+    }
+    return clientRef.current.send({
+      type: 'get_stock_similar_days',
+      ticker: normalized,
+      date,
+      top_k: topK
+    });
+  }, []);
+
+  const requestStockEnrich = useCallback((symbol, options = {}) => {
+    const normalized = typeof symbol === 'string' ? symbol.trim().toUpperCase() : '';
+    if (!normalized || !clientRef.current) {
+      return false;
+    }
+    const startDate = typeof options.startDate === 'string' ? options.startDate.trim() : '';
+    const endDate = typeof options.endDate === 'string' ? options.endDate.trim() : '';
+    if (!startDate || !endDate) {
+      return false;
+    }
+    setNewsByTicker((prev) => ({
+      ...prev,
+      [normalized]: {
+        ...(prev[normalized] || {}),
+        maintenanceStatus: {
+          running: true,
+          error: null,
+          updatedAt: new Date().toISOString(),
+          stats: null
+        }
+      }
+    }));
+    return clientRef.current.send({
+      type: 'run_stock_enrich',
+      ticker: normalized,
+      start_date: startDate,
+      end_date: endDate,
+      force: Boolean(options.force),
+      only_local_to_llm: Boolean(options.onlyLocalToLlm),
+      rebuild_story: Boolean(options.rebuildStory),
+      rebuild_similar_days: Boolean(options.rebuildSimilarDays),
+      story_date: options.storyDate || null,
+      target_date: options.targetDate || null
+    });
+  }, []);
+
   // Switch away from LIVE tab when market closes
   useEffect(() => {
     if (!isLiveEnabled && chartTab === 'live') {
@@ -439,7 +610,21 @@ export default function LiveTradingApp() {
     }
     requestStockHistory(selectedExplainSymbol);
     requestStockExplainEvents(selectedExplainSymbol);
-  }, [currentView, requestStockExplainEvents, requestStockHistory, selectedExplainSymbol]);
+    requestStockNews(selectedExplainSymbol);
+    requestStockNewsTimeline(selectedExplainSymbol);
+    requestStockNewsCategories(selectedExplainSymbol);
+    requestStockStory(selectedExplainSymbol, currentDate);
+  }, [
+    currentDate,
+    currentView,
+    requestStockExplainEvents,
+    requestStockHistory,
+    requestStockNews,
+    requestStockNewsCategories,
+    requestStockNewsTimeline,
+    requestStockStory,
+    selectedExplainSymbol
+  ]);
 
   // Clock - use virtual time if available (for mock mode)
   useEffect(() => {
@@ -802,6 +987,193 @@ export default function LiveTradingApp() {
           }));
         },
 
+        stock_news_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          if (!symbol) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              items: Array.isArray(e.news) ? e.news : [],
+              source: e.source || null,
+              startDate: e.start_date || null,
+              endDate: e.end_date || null
+            }
+          }));
+          requestStockNewsTimeline(symbol);
+        },
+
+        stock_news_for_date_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          const date = typeof e.date === 'string' ? e.date.trim() : '';
+          if (!symbol || !date) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              byDate: {
+                ...((prev[symbol] && prev[symbol].byDate) || {}),
+                [date]: Array.isArray(e.news) ? e.news : []
+              }
+            }
+          }));
+        },
+
+        stock_news_timeline_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          if (!symbol) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              timeline: Array.isArray(e.timeline) ? e.timeline : [],
+              timelineStartDate: e.start_date || null,
+              timelineEndDate: e.end_date || null
+            }
+          }));
+        },
+
+        stock_news_categories_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          if (!symbol) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              categories: e.categories || {},
+              categoriesStartDate: e.start_date || null,
+              categoriesEndDate: e.end_date || null
+            }
+          }));
+        },
+
+        stock_range_explain_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          if (!symbol) {
+            return;
+          }
+          const result = e.result && typeof e.result === 'object' ? e.result : null;
+          if (!result?.start_date || !result?.end_date) {
+            return;
+          }
+          const cacheKey = `${result.start_date}:${result.end_date}`;
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              rangeExplainCache: {
+                ...((prev[symbol] && prev[symbol].rangeExplainCache) || {}),
+                [cacheKey]: result
+              }
+            }
+          }));
+        },
+
+        stock_story_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          const asOfDate = typeof e.as_of_date === 'string' ? e.as_of_date.trim() : '';
+          if (!symbol || !asOfDate) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              storyCache: {
+                ...((prev[symbol] && prev[symbol].storyCache) || {}),
+                [asOfDate]: {
+                  story: e.story || '',
+                  source: e.source || null,
+                  asOfDate
+                }
+              }
+            }
+          }));
+        },
+
+        stock_similar_days_loaded: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          const date = typeof e.target_date === 'string'
+            ? e.target_date.trim()
+            : typeof e.date === 'string'
+              ? e.date.trim()
+              : '';
+          if (!symbol || !date) {
+            return;
+          }
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              similarDaysCache: {
+                ...((prev[symbol] && prev[symbol].similarDaysCache) || {}),
+                [date]: {
+                  target_features: e.target_features || {},
+                  items: Array.isArray(e.items) ? e.items : [],
+                  error: e.error || null
+                }
+              }
+            }
+          }));
+        },
+
+        stock_enrich_completed: (e) => {
+          const symbol = typeof e.ticker === 'string' ? e.ticker.trim().toUpperCase() : '';
+          if (!symbol) {
+            return;
+          }
+          const completedAt = new Date().toISOString();
+          const historyEntry = {
+            timestamp: completedAt,
+            startDate: e.start_date || '',
+            endDate: e.end_date || '',
+            force: Boolean(e.force),
+            onlyLocalToLlm: Boolean(e.only_local_to_llm),
+            error: e.error || null,
+            stats: e.stats || null,
+            storyStatus: e.story_status || null,
+            similarStatus: e.similar_status || null
+          };
+          setNewsByTicker((prev) => ({
+            ...prev,
+            [symbol]: {
+              ...(prev[symbol] || {}),
+              items: [],
+              byDate: {},
+              timeline: [],
+              categories: {},
+              rangeExplainCache: {},
+              storyCache: {},
+              similarDaysCache: {},
+              maintenanceStatus: {
+                running: false,
+                error: e.error || null,
+                updatedAt: completedAt,
+                stats: e.stats || null,
+                storyStatus: e.story_status || null,
+                similarStatus: e.similar_status || null
+              },
+              maintenanceHistory: [
+                historyEntry,
+                ...(((prev[symbol] && prev[symbol].maintenanceHistory) || []).slice(0, 7))
+              ]
+            }
+          }));
+          if (!e.error) {
+            requestStockNews(symbol);
+            requestStockNewsTimeline(symbol);
+            requestStockNewsCategories(symbol);
+          }
+        },
+
         // Real-time price updates
         price_update: (e) => {
           try {
@@ -1146,7 +1518,14 @@ export default function LiveTradingApp() {
         clientRef.current.disconnect();
       }
     };
-  }, [addSystemMessage, buildTickersFromSymbols, processFeedEvent, processHistoricalFeed]); // Only reconnect if handlers change
+  }, [
+    addSystemMessage,
+    buildTickersFromSymbols,
+    processFeedEvent,
+    processHistoricalFeed,
+    requestStockNewsCategories,
+    requestStockNewsTimeline
+  ]); // Only reconnect if handlers change
 
   // Resizing handlers
   const handleMouseDown = (e) => {
@@ -1318,16 +1697,24 @@ export default function LiveTradingApp() {
                 </span>
               </>
             )}
-            {priceSourceLabel && (
+            {livePriceSourceLabel && (
               <>
                 <span className="status-sep">·</span>
                 <span className="market-text backtest">
-                  {priceSourceLabel}
+                  {livePriceSourceLabel}
+                </span>
+              </>
+            )}
+            {historicalPriceSourceLabel && (
+              <>
+                <span className="status-sep">·</span>
+                <span className="market-text backtest">
+                  {historicalPriceSourceLabel}
                 </span>
               </>
             )}
             <span className="status-sep">·</span>
-            <span className="time-text">{lastUpdate.toLocaleTimeString('en-US', { hour: '2-digit', minute: '2-digit', second: '2-digit', hour12: false })}</span>
+            <span className="time-text">{now.toLocaleTimeString('en-US', { hour: '2-digit', minute: '2-digit', second: '2-digit', hour12: false })}</span>
           </div>
 
           <WatchlistPanel
@@ -1407,7 +1794,7 @@ export default function LiveTradingApp() {
                     className={`view-nav-btn ${currentView === 'explain' ? 'active' : ''}`}
                     onClick={() => setCurrentView('explain')}
                   >
-                    个股解释
+                    个股分析
                   </button>
 
                   <button
@@ -1437,6 +1824,7 @@ export default function LiveTradingApp() {
                 } ${!isInitialAnimating ? 'normal-speed' : ''}`}>
                   {/* Room View Panel */}
                   <div className="view-panel">
+                    <Suspense fallback={<ViewLoadingFallback label="加载交易室..." />}>
                       <RoomView
                         bubbles={bubbles}
                         bubbleFor={bubbleFor}
@@ -1444,10 +1832,12 @@ export default function LiveTradingApp() {
                         feed={feed}
                         onJumpToMessage={handleJumpToMessage}
                       />
+                    </Suspense>
                   </div>
 
                   {/* Stock Explain View Panel */}
                   <div className="view-panel">
+                    <Suspense fallback={<ViewLoadingFallback label="加载个股分析..." />}>
                       <StockExplainView
                         tickers={displayTickers}
                         holdings={holdings}
@@ -1460,7 +1850,15 @@ export default function LiveTradingApp() {
                         onSelectedSymbolChange={setSelectedExplainSymbol}
                         selectedHistorySource={historySourceByTicker[selectedExplainSymbol] || null}
                         explainEventsSnapshot={explainEventsByTicker[selectedExplainSymbol] || null}
+                        newsSnapshot={newsByTicker[selectedExplainSymbol] || null}
+                        onRequestRangeExplain={requestStockRangeExplain}
+                        onRequestNewsForDate={requestStockNewsForDate}
+                        onRequestStory={requestStockStory}
+                        currentDate={currentDate}
+                        onRequestSimilarDays={requestStockSimilarDays}
+                        onRequestStockEnrich={requestStockEnrich}
                       />
+                    </Suspense>
                   </div>
 
                   {/* Chart View Panel */}
@@ -1502,6 +1900,7 @@ export default function LiveTradingApp() {
 
                   {/* Statistics View Panel */}
                   <div className="view-panel">
+                    <Suspense fallback={<ViewLoadingFallback label="加载统计视图..." />}>
                       <StatisticsView
                         trades={trades}
                         holdings={holdings}
@@ -1510,6 +1909,7 @@ export default function LiveTradingApp() {
                         equity={portfolioData.equity}
                         leaderboard={leaderboard}
                       />
+                    </Suspense>
                   </div>
                 </div>
               </div>
@@ -1524,7 +1924,9 @@ export default function LiveTradingApp() {
 
           {/* Right Panel: Agent Feed */}
           <div className="right-panel" style={{ width: `${100 - leftWidth}%` }}>
+            <Suspense fallback={<ViewLoadingFallback label="加载消息流..." />}>
               <AgentFeed ref={agentFeedRef} feed={feed} leaderboard={leaderboard} />
+            </Suspense>
           </div>
         </div>
       </>

frontend/src/components/WatchlistPanel.jsx

@@ -20,7 +20,7 @@ export default function WatchlistPanel({
   onSave
 }) {
   return (
-    <div style={{ display: 'flex', alignItems: 'center', gap: 8, minWidth: 0, position: 'relative' }}>
+    <div style={{ display: 'flex', alignItems: 'center', gap: 8, minWidth: 0, position: 'relative', marginLeft: -6 }}>
       <button
         onClick={onToggle}
         style={{
@@ -36,7 +36,7 @@ export default function WatchlistPanel({
           whiteSpace: 'nowrap'
         }}
       >
-        WATCHLIST
+        自选股
       </button>
 
       {isOpen && (

frontend/src/components/explain/ExplainEventsSection.jsx

@@ -0,0 +1,157 @@
+import React from 'react';
+import { formatDateTime } from '../../utils/formatters';
+
+export default function ExplainEventsSection({
+  explainTimeline,
+  isOpen,
+  onToggle,
+  availableEventDates,
+  selectedEventDate,
+  onSelectEventDate,
+  eventCategoryCounts,
+  activeEventCategory,
+  onSelectEventCategory,
+  eventCategoryMeta,
+  visibleExplainEvents,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">关键事件时间线</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            图上点击事件点可切换对应日期
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起关键事件' : `展开关键事件 ${explainTimeline.length}`}
+          </button>
+        </div>
+      </div>
+
+      {explainTimeline.length === 0 ? (
+        <div className="empty-state">当前还没有可以串起来看的关键事件。</div>
+      ) : !isOpen ? (
+        <div className="empty-state">关键事件默认收起，需要时再展开查看和筛选。</div>
+      ) : (
+        <div style={{ display: 'grid', gap: 14 }}>
+          <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+            {availableEventDates.map((dateKey) => {
+              const isActive = dateKey === selectedEventDate;
+              return (
+                <button
+                  key={dateKey}
+                  onClick={() => onSelectEventDate(dateKey)}
+                  style={{
+                    border: '1px solid #111111',
+                    background: isActive ? '#111111' : '#ffffff',
+                    color: isActive ? '#ffffff' : '#111111',
+                    padding: '7px 10px',
+                    fontFamily: 'inherit',
+                    fontSize: 11,
+                    fontWeight: 700,
+                    cursor: 'pointer'
+                  }}
+                >
+                  {dateKey}
+                </button>
+              );
+            })}
+          </div>
+
+          <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+            {Object.entries(eventCategoryMeta)
+              .filter(([key]) => (eventCategoryCounts[key] || 0) > 0 || key === 'all')
+              .map(([key, meta]) => {
+                const isActive = key === activeEventCategory;
+                return (
+                  <button
+                    key={key}
+                    onClick={() => onSelectEventCategory(key)}
+                    style={{
+                      border: `1px solid ${meta.color}`,
+                      background: isActive ? meta.color : '#ffffff',
+                      color: isActive ? '#ffffff' : meta.color,
+                      padding: '8px 10px',
+                      fontFamily: 'inherit',
+                      fontSize: 11,
+                      fontWeight: 700,
+                      cursor: 'pointer'
+                    }}
+                  >
+                    {meta.label} {eventCategoryCounts[key] || 0}
+                  </button>
+                );
+              })}
+          </div>
+
+          {visibleExplainEvents.length === 0 ? (
+            <div className="empty-state">当前日期下没有符合筛选条件的事件</div>
+          ) : (
+            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(320px, 1fr))', gap: 16 }}>
+              {visibleExplainEvents.map((event) => {
+                const accent = event.tone === 'positive' ? '#00C853' : event.tone === 'negative' ? '#FF1744' : '#000000';
+                const categoryMeta = eventCategoryMeta[event.category] || eventCategoryMeta.other;
+                return (
+                  <div
+                    key={event.id}
+                    style={{
+                      border: '1px solid #000000',
+                      background: '#ffffff',
+                      padding: 14,
+                      minHeight: 180
+                    }}
+                  >
+                    <div style={{ display: 'flex', justifyContent: 'space-between', gap: 12, marginBottom: 8 }}>
+                      <div style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                        <span style={{
+                          display: 'inline-flex',
+                          padding: '2px 6px',
+                          border: `1px solid ${categoryMeta.color}`,
+                          color: categoryMeta.color,
+                          fontSize: 10,
+                          fontWeight: 700
+                        }}>
+                          {categoryMeta.label}
+                        </span>
+                        <strong style={{ fontSize: 13 }}>{event.title}</strong>
+                      </div>
+                      <span style={{ fontSize: 10, color: '#666666', whiteSpace: 'nowrap' }}>
+                        {formatDateTime(event.timestamp)}
+                      </span>
+                    </div>
+                    <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 10 }}>
+                      <span style={{
+                        width: 8,
+                        height: 8,
+                        borderRadius: '50%',
+                        background: accent
+                      }} />
+                      <span style={{ fontSize: 10, color: '#666666', textTransform: 'uppercase', letterSpacing: 0.6 }}>
+                        {event.meta}
+                      </span>
+                    </div>
+                    <div style={{ fontSize: 12, lineHeight: 1.7, color: '#000000', whiteSpace: 'pre-wrap', wordBreak: 'break-word' }}>
+                      {event.body}
+                    </div>
+                  </div>
+                );
+              })}
+            </div>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainMaintenanceSection.jsx

@@ -0,0 +1,249 @@
+import React from 'react';
+
+function toggleButtonStyle(active, accent = '#111111') {
+  return {
+    border: `1px solid ${accent}`,
+    background: active ? accent : '#ffffff',
+    color: active ? '#ffffff' : accent,
+    padding: '6px 10px',
+    fontFamily: 'inherit',
+    fontSize: 11,
+    fontWeight: 700,
+    cursor: 'pointer'
+  };
+}
+
+export default function ExplainMaintenanceSection({
+  selectedSymbol,
+  enrichStartDate,
+  enrichEndDate,
+  onChangeStartDate,
+  onChangeEndDate,
+  forceEnrich,
+  onToggleForce,
+  onlyLocalToLlm,
+  onToggleOnlyLocalToLlm,
+  rebuildStory,
+  onToggleRebuildStory,
+  rebuildSimilarDays,
+  onToggleRebuildSimilarDays,
+  isRunning,
+  onRunEnrich,
+  maintenanceStatus,
+  maintenanceHistory,
+  onSelectHistory,
+  onReplayHistory,
+  isOpen,
+  onToggle,
+}) {
+  const stats = maintenanceStatus?.stats || null;
+  const summary = stats?.execution_summary || null;
+
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">分析数据维护</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            当前标的 {selectedSymbol || '-'}
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起刷新工具' : '展开刷新工具'}
+          </button>
+        </div>
+      </div>
+
+      {!isOpen ? (
+        <div className="empty-state">刷新工具默认收起，需要时再展开重新分析数据或查看历史。</div>
+      ) : (
+      <div
+        style={{
+          border: '1px solid #000000',
+          background: '#ffffff',
+          padding: 14,
+          display: 'grid',
+          gap: 14,
+        }}
+      >
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(180px, 1fr))', gap: 12 }}>
+          <label style={{ display: 'grid', gap: 6, fontSize: 11, fontWeight: 700 }}>
+            开始日期
+            <input type="date" value={enrichStartDate} onChange={(e) => onChangeStartDate(e.target.value)} style={{ border: '1px solid #111111', padding: '8px 10px', fontFamily: 'inherit' }} />
+          </label>
+          <label style={{ display: 'grid', gap: 6, fontSize: 11, fontWeight: 700 }}>
+            结束日期
+            <input type="date" value={enrichEndDate} onChange={(e) => onChangeEndDate(e.target.value)} style={{ border: '1px solid #111111', padding: '8px 10px', fontFamily: 'inherit' }} />
+          </label>
+        </div>
+
+        <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+          <button onClick={onToggleForce} style={toggleButtonStyle(forceEnrich, '#b91c1c')}>
+            {forceEnrich ? '覆盖已有分析' : '仅补缺失'}
+          </button>
+          <button onClick={onToggleOnlyLocalToLlm} style={toggleButtonStyle(onlyLocalToLlm, '#7c3aed')}>
+            {onlyLocalToLlm ? '仅将规则分析升级为 LLM分析' : '不限制分析来源'}
+          </button>
+          <button onClick={onToggleRebuildStory} style={toggleButtonStyle(rebuildStory, '#2563eb')}>
+            {rebuildStory ? '重建主线叙事' : '跳过主线叙事'}
+          </button>
+          <button onClick={onToggleRebuildSimilarDays} style={toggleButtonStyle(rebuildSimilarDays, '#15803d')}>
+            {rebuildSimilarDays ? '重建相似交易日' : '跳过相似交易日'}
+          </button>
+        </div>
+
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <button
+            onClick={onRunEnrich}
+            disabled={isRunning || !selectedSymbol || !enrichStartDate || !enrichEndDate}
+            style={{
+              border: '1px solid #111111',
+              background: isRunning ? '#d1d5db' : '#111111',
+              color: '#ffffff',
+              padding: '9px 14px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: isRunning ? 'wait' : 'pointer'
+            }}
+          >
+            {isRunning ? '执行中...' : '重新分析当前区间'}
+          </button>
+          {maintenanceStatus?.updatedAt ? (
+            <span style={{ fontSize: 11, color: '#666666' }}>
+              最近一次执行: {maintenanceStatus.updatedAt}
+            </span>
+          ) : null}
+        </div>
+
+        {maintenanceStatus?.error ? (
+          <div style={{ fontSize: 11, color: '#991b1b', lineHeight: 1.7 }}>
+            执行失败: {maintenanceStatus.error}
+          </div>
+        ) : null}
+
+        {stats ? (
+          <>
+            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(140px, 1fr))', gap: 10 }}>
+              {[
+                ['新闻总数', stats.news_count],
+                ['待处理', stats.queued_count],
+                ['已分析', stats.analyzed],
+                ['已跳过', stats.skipped_existing_count],
+                ['去重数', stats.deduped_count],
+                ['LLM分析', stats.llm_count],
+                ['规则分析', stats.local_count],
+                ['升级数', stats.upgraded_local_to_llm_count],
+              ].map(([label, value]) => (
+                <div key={label} style={{ border: '1px solid #111111', padding: 10 }}>
+                  <div style={{ fontSize: 10, color: '#666666' }}>{label}</div>
+                  <div style={{ fontSize: 18, fontWeight: 700 }}>{value ?? '-'}</div>
+                </div>
+              ))}
+            </div>
+
+            {summary ? (
+              <div style={{ border: '1px solid #111111', padding: 12, fontSize: 11, lineHeight: 1.8 }}>
+                {summary.upgraded_dates?.length ? (
+                  <div><strong>升级日期:</strong> {summary.upgraded_dates.join(', ')}</div>
+                ) : null}
+                {summary.remaining_local_titles?.length ? (
+                  <div><strong>仍为规则分析:</strong> {summary.remaining_local_titles.join(' / ')}</div>
+                ) : null}
+                {typeof summary.skipped_non_local_count === 'number' ? (
+                  <div><strong>跳过非规则分析:</strong> {summary.skipped_non_local_count}</div>
+                ) : null}
+                {typeof summary.skipped_missing_analysis_count === 'number' ? (
+                  <div><strong>跳过无历史分析:</strong> {summary.skipped_missing_analysis_count}</div>
+                ) : null}
+              </div>
+            ) : null}
+          </>
+        ) : null}
+
+        {Array.isArray(maintenanceHistory) && maintenanceHistory.length > 0 ? (
+          <div style={{ border: '1px solid #111111', padding: 12, display: 'grid', gap: 8 }}>
+            <div style={{ fontSize: 11, fontWeight: 700 }}>最近刷新历史</div>
+            {maintenanceHistory.slice(0, 5).map((item, index) => (
+              <div
+                key={`${item.timestamp || 'history'}-${index}`}
+                style={{
+                  borderTop: index === 0 ? 'none' : '1px solid #e5e7eb',
+                  paddingTop: index === 0 ? 0 : 8,
+                  fontSize: 11,
+                  lineHeight: 1.8,
+                }}
+              >
+                <div>
+                  <strong>{item.startDate || '-'}</strong> ~ <strong>{item.endDate || '-'}</strong>
+                  {' · '}
+                  {item.onlyLocalToLlm ? '规则分析→LLM分析' : item.force ? '覆盖重跑' : '补缺失'}
+                  {item.storyStatus ? ' · 主线叙事' : ''}
+                  {item.similarStatus ? ' · 相似交易日' : ''}
+                </div>
+                <div style={{ color: item.error ? '#991b1b' : '#4b5563' }}>
+                  {item.timestamp || '-'}
+                  {item.error
+                    ? ` · 失败: ${item.error}`
+                    : ` · 已分析 ${item.stats?.analyzed ?? 0}，已升级 ${item.stats?.upgraded_local_to_llm_count ?? 0}`}
+                </div>
+                <div style={{ marginTop: 4 }}>
+                  <button
+                    onClick={() => onSelectHistory?.(item)}
+                    style={{
+                      border: '1px solid #111111',
+                      background: '#ffffff',
+                      color: '#111111',
+                      padding: '4px 8px',
+                      fontFamily: 'inherit',
+                      fontSize: 10,
+                      fontWeight: 700,
+                      cursor: 'pointer'
+                    }}
+                  >
+                    回填到表单
+                  </button>
+                  <button
+                    onClick={() => onReplayHistory?.(item)}
+                    style={{
+                      marginLeft: 8,
+                      border: '1px solid #111111',
+                      background: '#111111',
+                      color: '#ffffff',
+                      padding: '4px 8px',
+                      fontFamily: 'inherit',
+                      fontSize: 10,
+                      fontWeight: 700,
+                      cursor: 'pointer'
+                    }}
+                  >
+                    直接重跑
+                  </button>
+                  {!item.error ? (
+                    <span style={{ marginLeft: 8, fontSize: 10, color: '#666666' }}>
+                      {item.stats?.execution_summary?.upgraded_dates?.length
+                        ? `升级日 ${item.stats.execution_summary.upgraded_dates.join(', ')}`
+                        : '无升级日期摘要'}
+                    </span>
+                  ) : null}
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : null}
+      </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainMentionsSection.jsx

@@ -0,0 +1,77 @@
+import React from 'react';
+import { formatDateTime } from '../../utils/formatters';
+
+export default function ExplainMentionsSection({
+  recentMentions,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">讨论提及</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            从交易讨论和分析 feed 提取
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起讨论摘录' : `展开讨论摘录 ${recentMentions.length}`}
+          </button>
+        </div>
+      </div>
+
+      {recentMentions.length === 0 ? (
+        <div className="empty-state">最近没有在讨论里提到这只股票。</div>
+      ) : !isOpen ? (
+        <div className="empty-state">讨论摘录默认收起，需要时再展开查看。</div>
+      ) : (
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(320px, 1fr))', gap: 16 }}>
+          {recentMentions.map((message, index) => (
+            <div
+              key={`${message.feedId || message.id}-${index}`}
+              style={{
+                border: '1px solid #000000',
+                background: '#fafafa',
+                padding: 14,
+                minHeight: 150
+              }}
+            >
+              <div style={{ display: 'flex', justifyContent: 'space-between', gap: 12, marginBottom: 10 }}>
+                <div>
+                  <div style={{ fontWeight: 700, color: '#000000' }}>{message.agent || '未知角色'}</div>
+                  <div style={{ fontSize: 10, color: '#666666' }}>
+                    {message.conferenceTitle || (message.feedType === 'conference' ? '投资讨论' : '即时消息')}
+                  </div>
+                </div>
+                <div style={{ fontSize: 10, color: '#666666', whiteSpace: 'nowrap' }}>
+                  {formatDateTime(message.timestamp)}
+                </div>
+              </div>
+              <div style={{
+                fontSize: 12,
+                lineHeight: 1.7,
+                color: '#000000',
+                whiteSpace: 'pre-wrap',
+                wordBreak: 'break-word'
+              }}>
+                {String(message.content || '')}
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainNewsSection.jsx

@@ -0,0 +1,308 @@
+import React from 'react';
+import { formatDateTime } from '../../utils/formatters';
+
+function categoryLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  const labels = {
+    market: '市场交易',
+    policy: '政策监管',
+    earnings: '业绩财报',
+    product_tech: '产品技术',
+    competition: '竞争格局',
+    management: '管理层动态',
+  };
+  return labels[normalized] || value || '';
+}
+
+function relevanceLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  const labels = {
+    high: '高相关',
+    medium: '中相关',
+    low: '低相关',
+    relevant: '高相关',
+  };
+  return labels[normalized] || value || '';
+}
+
+function analysisSourceLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  if (normalized === 'llm') return 'LLM分析';
+  if (normalized === 'local') return '规则分析';
+  return value || '';
+}
+
+function sentimentStyle(sentiment) {
+  const normalized = String(sentiment || '').trim().toLowerCase();
+  if (normalized === 'positive') {
+    return { border: '#16a34a', background: '#f0fdf4', color: '#166534', label: '利多' };
+  }
+  if (normalized === 'negative') {
+    return { border: '#dc2626', background: '#fef2f2', color: '#991b1b', label: '利空' };
+  }
+  return { border: '#6b7280', background: '#f9fafb', color: '#4b5563', label: '中性' };
+}
+
+export default function ExplainNewsSection({
+  newsSnapshot,
+  visibleNewsByCategory,
+  visibleNews,
+  activeNewsCategory,
+  onSelectNewsCategory,
+  activeNewsSentiment,
+  onSelectNewsSentiment,
+  newsCategories,
+  tickerNews,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">新闻面板</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {newsSnapshot?.source ? `最近 ${visibleNewsByCategory.length} 条 · ${newsSnapshot.source}` : `最近 ${visibleNewsByCategory.length} 条真实新闻`}
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起新闻面板' : '展开新闻面板'}
+          </button>
+        </div>
+      </div>
+
+      {!isOpen ? (
+        <div className="empty-state">新闻面板已收起，需要时再展开查看分类、情绪和新闻卡片。</div>
+      ) : (
+      <>
+      <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap', marginBottom: 14 }}>
+        <button
+          onClick={() => onSelectNewsCategory('all')}
+          style={{
+            border: '1px solid #111111',
+            background: activeNewsCategory === 'all' ? '#111111' : '#ffffff',
+            color: activeNewsCategory === 'all' ? '#ffffff' : '#111111',
+            padding: '7px 10px',
+            fontFamily: 'inherit',
+            fontSize: 11,
+            fontWeight: 700,
+            cursor: 'pointer'
+          }}
+        >
+          全部 {visibleNews.length}
+        </button>
+        {Object.entries(newsCategories)
+          .filter(([, meta]) => Number(meta?.count || 0) > 0)
+          .map(([key, meta]) => {
+            const isActive = activeNewsCategory === key;
+            const pos = Number(meta?.positive_ids?.length || 0);
+            const neg = Number(meta?.negative_ids?.length || 0);
+            return (
+              <button
+                key={key}
+                onClick={() => onSelectNewsCategory(key)}
+                style={{
+                  border: '1px solid #2563eb',
+                  background: isActive ? '#2563eb' : '#ffffff',
+                  color: isActive ? '#ffffff' : '#2563eb',
+                  padding: '7px 10px',
+                  fontFamily: 'inherit',
+                  fontSize: 11,
+                  fontWeight: 700,
+                  cursor: 'pointer'
+                }}
+              >
+                {categoryLabel(meta.label || key)} {meta.count}{pos || neg ? ` · +${pos}/-${neg}` : ''}
+              </button>
+            );
+          })}
+      </div>
+
+      <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap', marginBottom: 14 }}>
+        {[
+          { key: 'all', label: '全部情绪' },
+          { key: 'positive', label: '利多' },
+          { key: 'negative', label: '利空' },
+          { key: 'neutral', label: '中性' }
+        ].map((item) => {
+          const isActive = activeNewsSentiment === item.key;
+          return (
+            <button
+              key={item.key}
+              onClick={() => onSelectNewsSentiment(item.key)}
+              style={{
+                border: '1px solid #111111',
+                background: isActive ? '#111111' : '#ffffff',
+                color: isActive ? '#ffffff' : '#111111',
+                padding: '6px 10px',
+                fontFamily: 'inherit',
+                fontSize: 11,
+                fontWeight: 700,
+                cursor: 'pointer'
+              }}
+            >
+              {item.label}
+            </button>
+          );
+        })}
+      </div>
+
+      {tickerNews.length === 0 ? (
+        <div className="empty-state">当前数据源没有返回相关新闻</div>
+      ) : (
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(320px, 1fr))', gap: 16 }}>
+          {visibleNewsByCategory.map((item) => (
+            <div
+              key={item.id}
+              style={{
+                border: '1px solid #000000',
+                background: '#ffffff',
+                padding: 14,
+                minHeight: 180
+              }}
+            >
+              {(() => {
+                const sentimentMeta = sentimentStyle(item.sentiment);
+                return (
+                  <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap', marginBottom: 10 }}>
+                    <span style={{
+                      display: 'inline-flex',
+                      padding: '2px 6px',
+                      border: `1px solid ${sentimentMeta.border}`,
+                      background: sentimentMeta.background,
+                      color: sentimentMeta.color,
+                      fontSize: 10,
+                      fontWeight: 700
+                    }}>
+                      {sentimentMeta.label}
+                    </span>
+                    {item.relevance ? (
+                      <span style={{
+                        display: 'inline-flex',
+                        padding: '2px 6px',
+                        border: '1px solid #111111',
+                        color: '#111111',
+                        fontSize: 10,
+                        fontWeight: 700
+                      }}>
+                        {relevanceLabel(item.relevance)}
+                      </span>
+                    ) : null}
+                    {item.analysisSource ? (
+                      <span style={{
+                        display: 'inline-flex',
+                        padding: '2px 6px',
+                        border: '1px solid #6b7280',
+                        color: '#4b5563',
+                        fontSize: 10,
+                        fontWeight: 700
+                      }}>
+                        {analysisSourceLabel(item.analysisSource)}
+                      </span>
+                    ) : null}
+                    {item.analysisModelLabel ? (
+                      <span style={{
+                        display: 'inline-flex',
+                        padding: '2px 6px',
+                        border: '1px solid #9ca3af',
+                        color: '#374151',
+                        fontSize: 10,
+                        fontWeight: 700
+                      }}>
+                        {item.analysisModelLabel}
+                      </span>
+                    ) : null}
+                    {typeof item.retT0 === 'number' ? (
+                      <span style={{ fontSize: 10, color: item.retT0 >= 0 ? '#15803d' : '#b91c1c', fontWeight: 700 }}>
+                        T0 {item.retT0 >= 0 ? '+' : ''}{(item.retT0 * 100).toFixed(2)}%
+                      </span>
+                    ) : null}
+                  </div>
+                );
+              })()}
+              <div style={{ display: 'flex', justifyContent: 'space-between', gap: 12, marginBottom: 8 }}>
+                <div style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                  {item.category ? (
+                    <span style={{
+                      display: 'inline-flex',
+                      padding: '2px 6px',
+                      border: '1px solid #111111',
+                      color: '#111111',
+                      fontSize: 10,
+                      fontWeight: 700
+                    }}>
+                      {categoryLabel(item.category)}
+                    </span>
+                  ) : null}
+                  <strong style={{ fontSize: 13 }}>{item.title}</strong>
+                </div>
+                <span style={{ fontSize: 10, color: '#666666', whiteSpace: 'nowrap' }}>
+                  {formatDateTime(item.date)}
+                </span>
+              </div>
+
+              <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 10, flexWrap: 'wrap' }}>
+                <span style={{ fontSize: 10, color: '#666666', textTransform: 'uppercase', letterSpacing: 0.6 }}>
+                  {item.source}
+                </span>
+                {item.related ? (
+                  <span style={{ fontSize: 10, color: '#666666' }}>
+                    关联: {item.related}
+                  </span>
+                ) : null}
+              </div>
+
+              <div style={{ fontSize: 12, lineHeight: 1.7, color: '#000000', whiteSpace: 'pre-wrap', wordBreak: 'break-word' }}>
+                {item.summary || '该新闻没有可用摘要。'}
+              </div>
+
+              {item.keyDiscussion ? (
+                <div style={{ marginTop: 10, fontSize: 11, lineHeight: 1.7, color: '#374151' }}>
+                  <strong>核心讨论:</strong> {item.keyDiscussion}
+                </div>
+              ) : null}
+
+              {item.reasonGrowth ? (
+                <div style={{ marginTop: 8, fontSize: 11, lineHeight: 1.7, color: '#166534' }}>
+                  <strong>利多逻辑:</strong> {item.reasonGrowth}
+                </div>
+              ) : null}
+
+              {item.reasonDecrease ? (
+                <div style={{ marginTop: 8, fontSize: 11, lineHeight: 1.7, color: '#991b1b' }}>
+                  <strong>利空逻辑:</strong> {item.reasonDecrease}
+                </div>
+              ) : null}
+
+              {item.url ? (
+                <div style={{ marginTop: 12 }}>
+                  <a
+                    href={item.url}
+                    target="_blank"
+                    rel="noreferrer"
+                    style={{ fontSize: 11, fontWeight: 700, color: '#111111', textDecoration: 'underline' }}
+                  >
+                    查看原文
+                  </a>
+                </div>
+              ) : null}
+            </div>
+          ))}
+        </div>
+      )}
+      </>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainPriceSection.jsx

@@ -0,0 +1,155 @@
+import React from 'react';
+import { formatTickerPrice } from '../../utils/formatters';
+
+export default function ExplainPriceSection({
+  ohlcSeries,
+  priceSeries,
+  selectedHistorySource,
+  chartModel,
+  selectedTicker,
+  onSelectEventDate,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">价格与事件</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {ohlcSeries.length > 1
+              ? `最近 ${ohlcSeries.length} 根日线K线${selectedHistorySource ? ` · ${selectedHistorySource}` : ''}`
+              : `最近 ${priceSeries.length} 个价格点聚合为 ${chartModel.bucketCount || 0} 根简化K线`}
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起价格区' : '展开价格区'}
+          </button>
+        </div>
+      </div>
+
+      {ohlcSeries.length === 0 && priceSeries.length === 0 ? (
+        <div className="empty-state">当前还没有可绘制的价格历史</div>
+      ) : !isOpen ? (
+        <div className="empty-state">价格区已收起，需要时再展开查看图表和事件点。</div>
+      ) : (
+        <div style={{ border: '1px solid #000000', background: '#ffffff', padding: 16 }}>
+          <svg
+            viewBox={`0 0 ${chartModel.width} ${chartModel.height}`}
+            style={{ width: '100%', height: '220px', display: 'block', overflow: 'visible' }}
+          >
+            <defs>
+              <linearGradient id="stockExplainFill" x1="0" y1="0" x2="0" y2="1">
+                <stop offset="0%" stopColor="rgba(0,0,0,0.18)" />
+                <stop offset="100%" stopColor="rgba(0,0,0,0.02)" />
+              </linearGradient>
+            </defs>
+
+            <rect x="0" y="0" width={chartModel.width} height={chartModel.height} fill="#fafafa" />
+            <line
+              x1={chartModel.padding}
+              y1={chartModel.height - chartModel.padding}
+              x2={chartModel.width - chartModel.padding}
+              y2={chartModel.height - chartModel.padding}
+              stroke="#000000"
+              strokeWidth="1"
+            />
+
+            {chartModel.candles.length > 1 ? chartModel.candles.map((candle) => {
+              const rising = candle.close >= candle.open;
+              const stroke = rising ? '#00C853' : '#FF1744';
+              const fill = rising ? 'rgba(0, 200, 83, 0.16)' : 'rgba(255, 23, 68, 0.16)';
+              return (
+                <g key={candle.id}>
+                  <line
+                    x1={candle.centerX}
+                    y1={candle.highY}
+                    x2={candle.centerX}
+                    y2={candle.lowY}
+                    stroke={stroke}
+                    strokeWidth="1.4"
+                  />
+                  <rect
+                    x={candle.x}
+                    y={candle.bodyY}
+                    width={candle.width}
+                    height={candle.bodyHeight}
+                    fill={fill}
+                    stroke={stroke}
+                    strokeWidth="1.4"
+                  />
+                </g>
+              );
+            }) : chartModel.path && (
+              <>
+                <path d={`${chartModel.path} L${chartModel.width - chartModel.padding},${chartModel.height - chartModel.padding} L${chartModel.padding},${chartModel.height - chartModel.padding} Z`} fill="url(#stockExplainFill)" />
+                <path d={chartModel.path} fill="none" stroke="#000000" strokeWidth="2.5" />
+              </>
+            )}
+
+            {chartModel.markers.map((marker) => {
+              const fill = marker.tone === 'positive'
+                ? '#00C853'
+                : marker.tone === 'negative'
+                  ? '#FF1744'
+                  : marker.tone === 'news'
+                    ? '#2563eb'
+                    : '#000000';
+              return (
+                <g
+                  key={marker.id}
+                  onClick={() => onSelectEventDate(marker.dateKey)}
+                  style={{ cursor: 'pointer' }}
+                >
+                  <line x1={marker.x} y1={marker.y} x2={marker.x} y2={chartModel.height - chartModel.padding} stroke={fill} strokeDasharray="3 3" strokeWidth="1" />
+                  <circle
+                    cx={marker.x}
+                    cy={marker.y}
+                    r={marker.markerType === 'news'
+                      ? (marker.isSelected ? '5.5' : '4')
+                      : (marker.isSelected ? '6' : '4.5')}
+                    fill={fill}
+                    stroke={marker.isSelected ? '#111111' : '#ffffff'}
+                    strokeWidth={marker.isSelected ? '2.5' : '2'}
+                  />
+                  <title>{`${marker.title} · ${marker.dateKey || ''}${marker.count ? ` · ${marker.count} 条新闻` : ''}`}</title>
+                </g>
+              );
+            })}
+
+            <text x={chartModel.padding} y="14" fontSize="11" fill="#666666">
+              {chartModel.maxPrice != null ? `高点 $${formatTickerPrice(chartModel.maxPrice)}` : ''}
+            </text>
+            <text x={chartModel.padding} y={chartModel.height - 6} fontSize="11" fill="#666666">
+              {chartModel.minPrice != null ? `低点 $${formatTickerPrice(chartModel.minPrice)}` : ''}
+            </text>
+            <text x={chartModel.width - chartModel.padding} y="14" fontSize="11" fill="#666666" textAnchor="end">
+              {selectedTicker?.price != null ? `现价 $${formatTickerPrice(selectedTicker.price)}` : ''}
+            </text>
+          </svg>
+
+          <div style={{ display: 'flex', gap: 12, flexWrap: 'wrap', marginTop: 12 }}>
+            <div style={{ fontSize: 11, color: '#666666' }}>
+              图表说明：{ohlcSeries.length > 1 ? '历史日线K线' : '基于盘中价格点聚合的简化K线'}
+            </div>
+            <div style={{ fontSize: 11, color: '#2563eb' }}>蓝点：新闻日期</div>
+            <div style={{ fontSize: 11, color: '#666666' }}>黑点：讨论提及</div>
+            <div style={{ fontSize: 11, color: '#00C853' }}>绿点：偏多信号或做多成交</div>
+            <div style={{ fontSize: 11, color: '#FF1744' }}>红点：偏空信号或做空成交</div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainRangeSection.jsx

@@ -0,0 +1,220 @@
+import React from 'react';
+import { formatTickerPrice } from '../../utils/formatters';
+
+function renderSentimentLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  if (normalized === 'positive') return '利多';
+  if (normalized === 'negative') return '利空';
+  if (normalized === 'neutral') return '中性';
+  return value || '';
+}
+
+function renderCategoryLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  const labels = {
+    market: '市场交易',
+    policy: '政策监管',
+    earnings: '业绩财报',
+    product_tech: '产品技术',
+    competition: '竞争格局',
+    management: '管理层动态',
+  };
+  return labels[normalized] || value || '';
+}
+
+function renderAnalysisSourceLabel(value) {
+  const normalized = String(value || '').trim().toLowerCase();
+  if (normalized === 'llm') return 'LLM分析';
+  if (normalized === 'local') return '规则分析';
+  return value || '';
+}
+
+function MetricRow({ label, value, valueColor = '#111111' }) {
+  return (
+    <div style={{ display: 'flex', justifyContent: 'space-between', fontSize: 12, gap: 12 }}>
+      <span style={{ color: '#4b5563' }}>{label}</span>
+      <strong style={{ color: valueColor, textAlign: 'right' }}>{value}</strong>
+    </div>
+  );
+}
+
+function TagList({ items, tone = 'neutral', emptyText }) {
+  const palette = {
+    positive: { border: '#86efac', background: '#f0fdf4', color: '#166534' },
+    negative: { border: '#fca5a5', background: '#fef2f2', color: '#991b1b' },
+    neutral: { border: '#d1d5db', background: '#f9fafb', color: '#374151' },
+  };
+  const colors = palette[tone] || palette.neutral;
+
+  if (!Array.isArray(items) || items.length === 0) {
+    return <div style={{ fontSize: 12, lineHeight: 1.7, color: '#6b7280' }}>{emptyText}</div>;
+  }
+
+  return (
+    <div style={{ display: 'flex', flexWrap: 'wrap', gap: 8 }}>
+      {items.map((item, index) => (
+        <div
+          key={`${tone}-${index}-${item}`}
+          style={{
+            border: `1px solid ${colors.border}`,
+            background: colors.background,
+            color: colors.color,
+            padding: '6px 10px',
+            fontSize: 11,
+            lineHeight: 1.6,
+          }}
+        >
+          {item}
+        </div>
+      ))}
+    </div>
+  );
+}
+
+export default function ExplainRangeSection({
+  selectedRangeWindow,
+  selectedRangeExplain,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">区间涨跌分析</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {selectedRangeWindow
+              ? `${selectedRangeWindow.startDate} ~ ${selectedRangeWindow.endDate}`
+              : '先在图上选择一个事件日期'}
+          </div>
+          {selectedRangeExplain?.analysis?.analysis_source ? (
+            <div style={{ fontSize: 11, color: '#666666' }}>
+              {selectedRangeExplain.analysis.analysis_source === 'llm'
+                ? `分析来源 · ${renderAnalysisSourceLabel(selectedRangeExplain.analysis.analysis_source)} · ${selectedRangeExplain.analysis.analysis_model_label || 'LLM'}`
+                : `分析来源 · ${renderAnalysisSourceLabel(selectedRangeExplain.analysis.analysis_source)}`}
+            </div>
+          ) : null}
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起区间涨跌分析' : '展开区间涨跌分析'}
+          </button>
+        </div>
+      </div>
+
+      {!selectedRangeWindow ? (
+        <div className="empty-state">选择图上的日期后，会自动生成最近 7 天的区间涨跌分析。</div>
+      ) : !isOpen ? (
+        <div className="empty-state">区间涨跌分析已收起，需要时再展开查看摘要和快照。</div>
+      ) : !selectedRangeExplain ? (
+        <div className="empty-state">正在生成区间涨跌分析...</div>
+      ) : selectedRangeExplain.error ? (
+        <div className="empty-state">{selectedRangeExplain.error}</div>
+      ) : (
+        <div style={{ display: 'grid', gridTemplateColumns: '1.2fr 1fr', gap: 16 }}>
+          <div style={{ border: '1px solid #000000', background: '#ffffff', padding: 16 }}>
+            <div style={{ fontSize: 11, color: '#666666', marginBottom: 10, textTransform: 'uppercase', letterSpacing: 1 }}>
+              区间摘要
+            </div>
+            <div style={{ fontSize: 13, lineHeight: 1.8 }}>
+              {selectedRangeExplain.analysis?.summary || '暂无区间摘要'}
+            </div>
+            {selectedRangeExplain.analysis?.trend_analysis ? (
+              <div style={{ marginTop: 10, fontSize: 12, lineHeight: 1.7, color: '#4b5563' }}>
+                <strong>趋势拆解:</strong> {selectedRangeExplain.analysis.trend_analysis}
+              </div>
+            ) : null}
+            <div style={{ marginTop: 14, display: 'grid', gap: 8 }}>
+              {(selectedRangeExplain.analysis?.key_events || []).slice(0, 6).map((event, index) => (
+                <div key={`${event.id || event.title}-${index}`} style={{ borderTop: index === 0 ? 'none' : '1px solid #e5e7eb', paddingTop: index === 0 ? 0 : 8 }}>
+                  <div style={{ fontSize: 11, color: '#666666', marginBottom: 4 }}>
+                    {event.date || '-'} {event.category ? `· ${renderCategoryLabel(event.category)}` : ''} {event.sentiment ? `· ${renderSentimentLabel(event.sentiment)}` : ''}
+                  </div>
+                  <div style={{ fontSize: 12, fontWeight: 700, marginBottom: 4 }}>{event.title}</div>
+                  <div style={{ fontSize: 12, lineHeight: 1.6 }}>{event.summary || '暂无摘要'}</div>
+                </div>
+              ))}
+            </div>
+          </div>
+
+          <div style={{ border: '1px solid #000000', background: '#fafafa', padding: 16 }}>
+            <div style={{ fontSize: 11, color: '#666666', marginBottom: 12, textTransform: 'uppercase', letterSpacing: 1 }}>
+              区间快照
+            </div>
+            <div style={{ display: 'grid', gap: 10 }}>
+              <div style={{ border: '1px solid #e5e7eb', background: '#ffffff', padding: 12, display: 'grid', gap: 10 }}>
+                <div style={{ fontSize: 11, fontWeight: 700, color: '#374151' }}>事实概览</div>
+                <MetricRow
+                  label="区间涨跌"
+                  value={`${Number(selectedRangeExplain.price_change_pct) >= 0 ? '+' : ''}${Number(selectedRangeExplain.price_change_pct || 0).toFixed(2)}%`}
+                  valueColor={Number(selectedRangeExplain.price_change_pct) >= 0 ? '#00C853' : '#FF1744'}
+                />
+                <MetricRow label="关联新闻" value={selectedRangeExplain.news_count || 0} />
+                <MetricRow label="区间高点" value={`$${formatTickerPrice(selectedRangeExplain.high_price)}`} />
+                <MetricRow label="区间低点" value={`$${formatTickerPrice(selectedRangeExplain.low_price)}`} />
+                <MetricRow label="交易日数" value={selectedRangeExplain.trading_days || 0} />
+              </div>
+
+              <div style={{ border: '1px solid #e5e7eb', background: '#ffffff', padding: 12, display: 'grid', gap: 10 }}>
+                <div style={{ fontSize: 11, fontWeight: 700, color: '#374151' }}>主题分布</div>
+                {(selectedRangeExplain.dominant_categories || []).length > 0 ? (
+                  <div style={{ display: 'flex', flexWrap: 'wrap', gap: 8 }}>
+                    {selectedRangeExplain.dominant_categories.map((item) => (
+                      <div
+                        key={`${item.category}-${item.count}`}
+                        style={{
+                          border: '1px solid #d1d5db',
+                          background: '#f9fafb',
+                          color: '#374151',
+                          padding: '6px 10px',
+                          fontSize: 11,
+                          lineHeight: 1.5,
+                        }}
+                      >
+                        {renderCategoryLabel(item.category)} · {item.count}
+                      </div>
+                    ))}
+                  </div>
+                ) : (
+                  <div style={{ fontSize: 12, lineHeight: 1.7, color: '#6b7280' }}>
+                    当前没有识别出明显的主题聚类。
+                  </div>
+                )}
+              </div>
+
+              <div style={{ border: '1px solid #e5e7eb', background: '#ffffff', padding: 12, display: 'grid', gap: 10 }}>
+                <div style={{ fontSize: 11, fontWeight: 700, color: '#374151' }}>驱动因素</div>
+                <div style={{ display: 'grid', gap: 8 }}>
+                  <div style={{ fontSize: 11, fontWeight: 700, color: '#166534' }}>利多因素</div>
+                  <TagList
+                    items={selectedRangeExplain.analysis?.bullish_factors || []}
+                    tone="positive"
+                    emptyText="当前区间内未提炼出明确的利多因素。"
+                  />
+                </div>
+                <div style={{ display: 'grid', gap: 8 }}>
+                  <div style={{ fontSize: 11, fontWeight: 700, color: '#991b1b' }}>利空因素</div>
+                  <TagList
+                    items={selectedRangeExplain.analysis?.bearish_factors || []}
+                    tone="negative"
+                    emptyText="当前区间内未提炼出明确的利空因素。"
+                  />
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainSignalsSection.jsx

@@ -0,0 +1,123 @@
+import React from 'react';
+
+export default function ExplainSignalsSection({
+  tickerSignals,
+  signalSummary,
+  latestSignal,
+  eventDateKey,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">分析师观点</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            最近 {tickerSignals.length} 条相关信号
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起分析师观点' : '展开分析师观点'}
+          </button>
+        </div>
+      </div>
+
+      {!isOpen ? (
+        <div className="empty-state">分析师观点已收起，需要时再展开查看信号统计和明细。</div>
+      ) : (
+      <>
+      <div className="stats-grid" style={{ marginBottom: 16 }}>
+        <div className="stat-card">
+          <div className="stat-card-label">看涨</div>
+          <div className="stat-card-value positive">{signalSummary.bullish}</div>
+        </div>
+        <div className="stat-card">
+          <div className="stat-card-label">看跌</div>
+          <div className="stat-card-value negative">{signalSummary.bearish}</div>
+        </div>
+        <div className="stat-card">
+          <div className="stat-card-label">中性</div>
+          <div className="stat-card-value">{signalSummary.neutral}</div>
+        </div>
+        <div className="stat-card">
+          <div className="stat-card-label">最新结论</div>
+          <div className="stat-card-value" style={{ fontSize: 22 }}>
+            {latestSignal
+              ? latestSignal.normalizedDirection === 'bullish'
+                ? '偏多'
+                : latestSignal.normalizedDirection === 'bearish'
+                  ? '偏空'
+                  : '观望'
+              : '暂无'}
+          </div>
+          <div style={{ marginTop: 8, fontSize: 11, color: '#666666' }}>
+            {latestSignal ? `${latestSignal.agentName} · ${latestSignal.date || eventDateKey(latestSignal.timestamp)}` : '还没有历史信号'}
+          </div>
+        </div>
+      </div>
+
+      {tickerSignals.length === 0 ? (
+        <div className="empty-state">该股票还没有分析师信号记录</div>
+      ) : (
+        <div className="table-wrapper">
+          <table className="data-table">
+            <thead>
+              <tr>
+                <th>日期</th>
+                <th>分析师</th>
+                <th>方向</th>
+                <th>实际收益</th>
+                <th>结果</th>
+              </tr>
+            </thead>
+            <tbody>
+              {tickerSignals.slice(0, 8).map((signal, index) => {
+                const realReturn = typeof signal.real_return === 'number'
+                  ? `${signal.real_return >= 0 ? '+' : ''}${(signal.real_return * 100).toFixed(2)}%`
+                  : '未判定';
+                const status = signal.is_correct === true ? '命中' : signal.is_correct === false ? '未命中' : '待判定';
+                const directionText = signal.normalizedDirection === 'bullish'
+                  ? '看涨'
+                  : signal.normalizedDirection === 'bearish'
+                    ? '看跌'
+                    : '中性';
+                const directionColor = signal.normalizedDirection === 'bullish'
+                  ? '#00C853'
+                  : signal.normalizedDirection === 'bearish'
+                    ? '#FF1744'
+                    : '#666666';
+
+                return (
+                  <tr key={signal.id || `${signal.agentId}-${signal.date}-${index}`}>
+                    <td>{signal.date || eventDateKey(signal.timestamp) || '-'}</td>
+                    <td>
+                      <div style={{ fontWeight: 700 }}>{signal.agentName}</div>
+                      <div style={{ fontSize: 10, color: '#666666' }}>{signal.role}</div>
+                    </td>
+                    <td style={{ color: directionColor, fontWeight: 700 }}>{directionText}</td>
+                    <td>{realReturn}</td>
+                    <td>{status}</td>
+                  </tr>
+                );
+              })}
+            </tbody>
+          </table>
+        </div>
+      )}
+      </>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainSimilarDaysSection.jsx

@@ -0,0 +1,111 @@
+import React from 'react';
+
+export default function ExplainSimilarDaysSection({
+  selectedSimilarDays,
+  selectedEventDate,
+  onSelectSimilarDate,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">历史相似交易日</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {selectedEventDate || '先选择一个事件日期'}
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起相似交易日' : '展开相似交易日'}
+          </button>
+        </div>
+      </div>
+
+      {!selectedEventDate ? (
+        <div className="empty-state">选择图上的日期后，会检索这只股票历史上的相似交易日。</div>
+      ) : !isOpen ? (
+        <div className="empty-state">相似交易日默认收起，需要时再展开查看。</div>
+      ) : !selectedSimilarDays ? (
+        <div className="empty-state">正在检索相似交易日...</div>
+      ) : selectedSimilarDays.error ? (
+        <div className="empty-state">{selectedSimilarDays.error}</div>
+      ) : !Array.isArray(selectedSimilarDays.items) || selectedSimilarDays.items.length === 0 ? (
+        <div className="empty-state">当前没有足够历史样本来计算相似交易日。</div>
+      ) : (
+        <div style={{ display: 'grid', gap: 16 }}>
+          <div style={{ border: '1px solid #000000', background: '#fafafa', padding: 16 }}>
+            <div style={{ fontSize: 11, color: '#666666', marginBottom: 12, textTransform: 'uppercase', letterSpacing: 1 }}>
+              目标日快照
+            </div>
+            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(140px, 1fr))', gap: 12 }}>
+              <div style={{ fontSize: 12 }}>
+                <div style={{ color: '#666666', marginBottom: 4 }}>新闻数量</div>
+                <strong>{selectedSimilarDays.target_features?.n_articles ?? 0}</strong>
+              </div>
+              <div style={{ fontSize: 12 }}>
+                <div style={{ color: '#666666', marginBottom: 4 }}>情绪分数</div>
+                <strong>{Number(selectedSimilarDays.target_features?.sentiment_score ?? 0).toFixed(2)}</strong>
+              </div>
+              <div style={{ fontSize: 12 }}>
+                <div style={{ color: '#666666', marginBottom: 4 }}>前一日涨跌</div>
+                <strong>{Number(selectedSimilarDays.target_features?.ret_1d ?? 0).toFixed(2)}%</strong>
+              </div>
+              <div style={{ fontSize: 12 }}>
+                <div style={{ color: '#666666', marginBottom: 4 }}>高相关新闻</div>
+                <strong>{selectedSimilarDays.target_features?.high_relevance_count ?? 0}</strong>
+              </div>
+            </div>
+          </div>
+
+          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(260px, 1fr))', gap: 16 }}>
+            {selectedSimilarDays.items.map((item) => (
+              <button
+                key={item.date}
+                onClick={() => onSelectSimilarDate?.(item.date)}
+                style={{
+                  border: '1px solid #000000',
+                  background: '#ffffff',
+                  padding: 14,
+                  textAlign: 'left',
+                  cursor: 'pointer',
+                  fontFamily: 'inherit'
+                }}
+              >
+                <div style={{ display: 'flex', justifyContent: 'space-between', gap: 10, marginBottom: 8 }}>
+                  <strong style={{ fontSize: 13 }}>{item.date}</strong>
+                  <span style={{ fontSize: 11, color: '#666666' }}>
+                    相似度 {(Number(item.score || 0) * 100).toFixed(0)}%
+                  </span>
+                </div>
+                <div style={{ display: 'grid', gap: 6, fontSize: 12, marginBottom: 10 }}>
+                  <div>新闻数 {item.n_articles ?? 0}</div>
+                  <div>情绪分数 {Number(item.sentiment_score ?? 0).toFixed(2)}</div>
+                  <div>前一日涨跌 {Number(item.ret_1d ?? 0).toFixed(2)}%</div>
+                  <div>次日表现 {item.ret_t1_after != null ? `${item.ret_t1_after >= 0 ? '+' : ''}${Number(item.ret_t1_after).toFixed(2)}%` : '-'}</div>
+                  <div>三日表现 {item.ret_t3_after != null ? `${item.ret_t3_after >= 0 ? '+' : ''}${Number(item.ret_t3_after).toFixed(2)}%` : '-'}</div>
+                </div>
+                {(item.top_reasons || []).length > 0 ? (
+                  <div style={{ fontSize: 11, lineHeight: 1.7, color: '#4b5563' }}>
+                    <strong>主要线索:</strong> {item.top_reasons.join(' / ')}
+                  </div>
+                ) : null}
+              </button>
+            ))}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainStorySection.jsx

@@ -0,0 +1,58 @@
+import React from 'react';
+import ReactMarkdown from 'react-markdown';
+import remarkGfm from 'remark-gfm';
+
+export default function ExplainStorySection({
+  selectedStory,
+  selectedSymbol,
+  currentDate,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">主线叙事</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {selectedStory?.asOfDate || currentDate || '按当前解释窗口生成'}
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起主线叙事' : '展开主线叙事'}
+          </button>
+        </div>
+      </div>
+
+      {!selectedSymbol ? (
+        <div className="empty-state">先选择一只股票</div>
+      ) : !isOpen ? (
+        <div className="empty-state">主线叙事默认收起，需要时再展开查看完整叙事。</div>
+      ) : !selectedStory?.story ? (
+        <div className="empty-state">正在生成主线叙事...</div>
+      ) : (
+        <div style={{ border: '1px solid #000000', background: '#ffffff', padding: 18 }}>
+          <div style={{ fontSize: 11, color: '#666666', marginBottom: 12, textTransform: 'uppercase', letterSpacing: 1 }}>
+            {selectedStory?.source ? `来源 · ${selectedStory.source}` : '自动生成'}
+          </div>
+          <div style={{ fontSize: 13, lineHeight: 1.8 }}>
+            <ReactMarkdown remarkPlugins={[remarkGfm]}>
+              {selectedStory.story}
+            </ReactMarkdown>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainSummarySection.jsx

@@ -0,0 +1,87 @@
+import React from 'react';
+
+export default function ExplainSummarySection({
+  explainSummary,
+  tickerSignals,
+  recentMentions,
+  tickerTrades,
+  tickerNews,
+  selectedSymbol,
+  isOpen,
+  onToggle,
+}) {
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">分析摘要</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            基于当前持仓、信号和讨论自动汇总
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起分析摘要' : '展开分析摘要'}
+          </button>
+        </div>
+      </div>
+
+      {!isOpen ? (
+        <div className="empty-state">分析摘要已收起，需要时再展开查看概览和密度信息。</div>
+      ) : (
+      <div style={{ display: 'grid', gridTemplateColumns: '1.2fr 1fr', gap: 16 }}>
+        <div style={{ border: '1px solid #000000', background: '#fafafa', padding: 16 }}>
+          <div style={{ fontSize: 11, color: '#666666', marginBottom: 10, textTransform: 'uppercase', letterSpacing: 1 }}>
+            当前解释
+          </div>
+          <div style={{ display: 'flex', flexDirection: 'column', gap: 10 }}>
+            {explainSummary.map((line, index) => (
+              <div key={`${selectedSymbol}-summary-${index}`} style={{ fontSize: 13, lineHeight: 1.7, color: '#000000' }}>
+                {line}
+              </div>
+            ))}
+          </div>
+        </div>
+
+        <div style={{ border: '1px solid #000000', background: '#ffffff', padding: 16 }}>
+          <div style={{ fontSize: 11, color: '#666666', marginBottom: 12, textTransform: 'uppercase', letterSpacing: 1 }}>
+            信号密度
+          </div>
+          <div style={{ display: 'grid', gap: 10 }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', fontSize: 12 }}>
+              <span>分析师信号</span>
+              <strong>{tickerSignals.length}</strong>
+            </div>
+            <div style={{ display: 'flex', justifyContent: 'space-between', fontSize: 12 }}>
+              <span>讨论提及</span>
+              <strong>{recentMentions.length}</strong>
+            </div>
+            <div style={{ display: 'flex', justifyContent: 'space-between', fontSize: 12 }}>
+              <span>成交记录</span>
+              <strong>{tickerTrades.length}</strong>
+            </div>
+            <div style={{ display: 'flex', justifyContent: 'space-between', fontSize: 12 }}>
+              <span>新闻条目</span>
+              <strong>{tickerNews.length}</strong>
+            </div>
+            <div style={{ height: 1, background: '#e0e0e0', margin: '4px 0' }} />
+            <div style={{ fontSize: 12, lineHeight: 1.7, color: '#666666' }}>
+              当前分析优先读取已落库的历史记录，缺失时再回退到本次运行中的实时事件。
+            </div>
+          </div>
+        </div>
+      </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/ExplainTradesSection.jsx

@@ -0,0 +1,74 @@
+import React from 'react';
+import { formatDateTime } from '../../utils/formatters';
+
+export default function ExplainTradesSection({
+  tickerTrades,
+  selectedSymbol,
+  isOpen,
+  onToggle,
+}) {
+  const sideLabel = (value) => {
+    if (value === 'LONG') return '做多';
+    if (value === 'SHORT') return '做空';
+    return value || '-';
+  };
+
+  return (
+    <div className="section">
+      <div className="section-header">
+        <h2 className="section-title">成交记录</h2>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 12, flexWrap: 'wrap' }}>
+          <div style={{ fontSize: 11, color: '#666666' }}>
+            {tickerTrades.length} 笔与 {selectedSymbol} 相关的交易
+          </div>
+          <button
+            onClick={onToggle}
+            style={{
+              border: '1px solid #111111',
+              background: isOpen ? '#111111' : '#ffffff',
+              color: isOpen ? '#ffffff' : '#111111',
+              padding: '7px 10px',
+              fontFamily: 'inherit',
+              fontSize: 11,
+              fontWeight: 700,
+              cursor: 'pointer'
+            }}
+          >
+            {isOpen ? '收起成交记录' : `展开成交记录 ${tickerTrades.length}`}
+          </button>
+        </div>
+      </div>
+
+      {tickerTrades.length === 0 ? (
+        <div className="empty-state">该股票暂无成交记录</div>
+      ) : !isOpen ? (
+        <div className="empty-state">成交记录默认收起，需要时再展开查看。</div>
+      ) : (
+        <div className="table-wrapper">
+          <table className="data-table">
+            <thead>
+              <tr>
+                <th>时间</th>
+                <th>方向</th>
+                <th>数量</th>
+                <th>价格</th>
+              </tr>
+            </thead>
+            <tbody>
+              {tickerTrades.slice(0, 10).map((trade, index) => (
+                <tr key={trade.id || `${trade.ticker}-${trade.timestamp}-${index}`}>
+                  <td>{formatDateTime(trade.timestamp)}</td>
+                  <td style={{ fontWeight: 700, color: trade.side === 'LONG' ? '#00C853' : trade.side === 'SHORT' ? '#FF1744' : '#000000' }}>
+                    {sideLabel(trade.side)}
+                  </td>
+                  <td>{trade.qty}</td>
+                  <td>${Number(trade.price).toFixed(2)}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/explain/explainUtils.js

@@ -0,0 +1,281 @@
+export function normalizeSignalDirection(signal) {
+  const value = String(signal || '').trim().toLowerCase();
+  if (!value) return 'neutral';
+  if (value.includes('bull') || value === 'long' || value === 'buy') return 'bullish';
+  if (value.includes('bear') || value === 'short' || value === 'sell') return 'bearish';
+  return 'neutral';
+}
+
+export function includesTicker(content, ticker) {
+  if (!ticker || typeof content !== 'string') return false;
+  const normalized = ticker.trim().toUpperCase();
+  if (!normalized) return false;
+  return new RegExp(`\\b${normalized}\\b`, 'i').test(content);
+}
+
+export function flattenFeedMessages(feed) {
+  if (!Array.isArray(feed)) return [];
+  const items = [];
+
+  feed.forEach((item) => {
+    if (!item || !item.type || !item.data) return;
+
+    if (item.type === 'message' || item.type === 'memory') {
+      items.push({ ...item.data, feedType: item.type, feedId: item.id });
+      return;
+    }
+
+    if (item.type === 'conference' && Array.isArray(item.data.messages)) {
+      item.data.messages.forEach((message) => {
+        items.push({
+          ...message,
+          feedType: 'conference',
+          feedId: item.id,
+          conferenceTitle: item.data.title
+        });
+      });
+    }
+  });
+
+  return items;
+}
+
+export function snippetText(content, ticker) {
+  const raw = String(content || '').replace(/\s+/g, ' ').trim();
+  if (!raw) return '';
+  const normalizedTicker = String(ticker || '').trim().toUpperCase();
+  if (!normalizedTicker) {
+    return raw.length > 220 ? `${raw.slice(0, 220)}...` : raw;
+  }
+
+  const upper = raw.toUpperCase();
+  const idx = upper.indexOf(normalizedTicker);
+  if (idx === -1) {
+    return raw.length > 220 ? `${raw.slice(0, 220)}...` : raw;
+  }
+
+  const start = Math.max(0, idx - 90);
+  const end = Math.min(raw.length, idx + normalizedTicker.length + 130);
+  const snippet = raw.slice(start, end).trim();
+  return `${start > 0 ? '...' : ''}${snippet}${end < raw.length ? '...' : ''}`;
+}
+
+export function buildLinePath(points, width, height, padding) {
+  if (!Array.isArray(points) || points.length === 0) {
+    return '';
+  }
+
+  const prices = points.map((point) => Number(point.price)).filter(Number.isFinite);
+  if (!prices.length) {
+    return '';
+  }
+
+  const minPrice = Math.min(...prices);
+  const maxPrice = Math.max(...prices);
+  const span = maxPrice - minPrice || 1;
+  const innerWidth = width - padding * 2;
+  const innerHeight = height - padding * 2;
+
+  return points.map((point, index) => {
+    const x = padding + (innerWidth * index) / Math.max(points.length - 1, 1);
+    const y = height - padding - ((Number(point.price) - minPrice) / span) * innerHeight;
+    return `${index === 0 ? 'M' : 'L'}${x.toFixed(2)},${y.toFixed(2)}`;
+  }).join(' ');
+}
+
+export function parsePointTime(point) {
+  const raw = point?.timestamp ?? point?.label;
+  if (!raw) return NaN;
+  const direct = new Date(raw).getTime();
+  if (Number.isFinite(direct)) return direct;
+  return new Date(`${raw}T00:00:00`).getTime();
+}
+
+export function aggregatePriceSeriesToCandles(points) {
+  if (!Array.isArray(points) || points.length === 0) {
+    return [];
+  }
+
+  const bucketTarget = points.length >= 36 ? 12 : points.length >= 18 ? 8 : 4;
+  const bucketSize = Math.max(1, Math.ceil(points.length / bucketTarget));
+  const candles = [];
+
+  for (let index = 0; index < points.length; index += bucketSize) {
+    const bucket = points.slice(index, index + bucketSize);
+    const prices = bucket.map((point) => Number(point.price)).filter(Number.isFinite);
+    if (!prices.length) {
+      continue;
+    }
+
+    candles.push({
+      id: `${bucket[0]?.timestamp || index}-${bucket[bucket.length - 1]?.timestamp || index + bucket.length}`,
+      open: Number(bucket[0].price),
+      high: Math.max(...prices),
+      low: Math.min(...prices),
+      close: Number(bucket[bucket.length - 1].price),
+      startTimestamp: parsePointTime(bucket[0]),
+      endTimestamp: parsePointTime(bucket[bucket.length - 1]),
+      startLabel: bucket[0]?.label || bucket[0]?.timestamp || '',
+      endLabel: bucket[bucket.length - 1]?.label || bucket[bucket.length - 1]?.timestamp || ''
+    });
+  }
+
+  return candles;
+}
+
+export function eventDateKey(timestamp) {
+  if (!timestamp) return '';
+  const parsed = new Date(timestamp);
+  if (!Number.isNaN(parsed.getTime())) {
+    return parsed.toISOString().slice(0, 10);
+  }
+  return String(timestamp).slice(0, 10);
+}
+
+export function resolveEventCategory(event) {
+  if (!event) return 'other';
+  if (event.type === 'trade') return 'trade';
+  if (event.type === 'mention') return 'discussion';
+  if (event.type !== 'signal') return 'other';
+
+  const role = String(event.meta || '').toLowerCase();
+  if (role.includes('technical')) return 'technical';
+  if (role.includes('fundamental')) return 'fundamental';
+  if (role.includes('sentiment')) return 'sentiment';
+  if (role.includes('valuation')) return 'valuation';
+  if (role.includes('risk')) return 'risk';
+  if (role.includes('portfolio')) return 'portfolio';
+  return 'signal';
+}
+
+export function normalizeTradeRow(row, fallbackIndex = 0) {
+  if (!row || typeof row !== 'object') return null;
+  const timestamp = row.timestamp || row.ts || row.created_at || null;
+  const ticker = row.ticker || '';
+  const side = row.side || '';
+  const qtyValue = Number(row.qty ?? row.quantity ?? 0);
+  const priceValue = Number(row.price ?? 0);
+  return {
+    id: row.id || `trade-${ticker}-${timestamp || fallbackIndex}-${fallbackIndex}`,
+    timestamp,
+    trading_date: row.trading_date || row.trade_date || null,
+    ticker,
+    side,
+    qty: Number.isFinite(qtyValue) ? qtyValue : 0,
+    price: Number.isFinite(priceValue) ? priceValue : 0
+  };
+}
+
+export function normalizeSignalRow(row, fallbackIndex = 0) {
+  if (!row || typeof row !== 'object') return null;
+  const timestamp = row.timestamp || row.created_at || null;
+  const date = row.date || row.trade_date || eventDateKey(timestamp) || '';
+  const rawSignal = row.signal || row.title || '';
+  const normalizedDirection = normalizeSignalDirection(rawSignal);
+  const confidenceValue = Number(row.confidence);
+  const realReturnValue = Number(row.real_return);
+  const parsedCorrect = typeof row.is_correct === 'string'
+    ? row.is_correct.toLowerCase() === 'true'
+      ? true
+      : row.is_correct.toLowerCase() === 'false'
+        ? false
+        : null
+    : typeof row.is_correct === 'boolean'
+      ? row.is_correct
+      : null;
+
+  return {
+    id: row.id || `signal-${row.agent_id || row.agentId || 'agent'}-${date || fallbackIndex}-${fallbackIndex}`,
+    timestamp,
+    date,
+    ticker: row.ticker || '',
+    signal: rawSignal,
+    confidence: Number.isFinite(confidenceValue) ? confidenceValue : null,
+    real_return: Number.isFinite(realReturnValue) ? realReturnValue : null,
+    is_correct: parsedCorrect,
+    agentId: row.agent_id || row.agentId || '',
+    agentName: row.agent_name || row.agentName || row.meta || '未知分析师',
+    role: row.role || row.meta || '',
+    normalizedDirection
+  };
+}
+
+export function normalizeMentionRow(row, fallbackIndex = 0) {
+  if (!row || typeof row !== 'object') return null;
+  return {
+    id: row.id || `mention-${fallbackIndex}`,
+    feedId: row.id || `mention-${fallbackIndex}`,
+    timestamp: row.timestamp || null,
+    agent: row.agent || row.agentName || '未知角色',
+    content: row.body || row.content || '',
+    conferenceTitle: row.meta || '',
+    feedType: 'sqlite'
+  };
+}
+
+export function normalizeNewsRow(row, fallbackIndex = 0) {
+  if (!row || typeof row !== 'object') return null;
+  const date = row.date || row.published_utc || row.timestamp || null;
+  const source = row.source || row.publisher || '新闻源';
+  const title = row.title || '未命名新闻';
+  const summary = row.summary || row.description || '';
+  return {
+    id: row.id || row.url || `news-${fallbackIndex}`,
+    date,
+    dateKey: eventDateKey(date),
+    ticker: row.ticker || '',
+    title,
+    source,
+    category: row.category || '',
+    related: row.related || '',
+    summary,
+    url: row.url || row.article_url || '',
+    tradeDate: row.trade_date || null,
+    relevance: row.relevance || '',
+    sentiment: row.sentiment || '',
+    keyDiscussion: row.key_discussion || '',
+    reasonGrowth: row.reason_growth || '',
+    reasonDecrease: row.reason_decrease || '',
+    retT0: Number.isFinite(Number(row.ret_t0)) ? Number(row.ret_t0) : null,
+    retT1: Number.isFinite(Number(row.ret_t1)) ? Number(row.ret_t1) : null,
+    retT3: Number.isFinite(Number(row.ret_t3)) ? Number(row.ret_t3) : null,
+    retT5: Number.isFinite(Number(row.ret_t5)) ? Number(row.ret_t5) : null,
+    retT10: Number.isFinite(Number(row.ret_t10)) ? Number(row.ret_t10) : null,
+    analysisSource: row.analysis_source || '',
+    analysisModelLabel: row.analysis_model_label || ''
+  };
+}
+
+export function normalizeNewsTimelineRow(row, fallbackIndex = 0) {
+  if (!row || typeof row !== 'object') return null;
+  const date = row.date || row.trade_date || null;
+  if (!date) return null;
+  const countValue = Number(row.count ?? 0);
+  const sourceCountValue = Number(row.source_count ?? 0);
+  return {
+    id: row.id || `news-timeline-${date}-${fallbackIndex}`,
+    date,
+    dateKey: eventDateKey(date),
+    count: Number.isFinite(countValue) ? countValue : 0,
+    sourceCount: Number.isFinite(sourceCountValue) ? sourceCountValue : 0,
+    topTitle: row.top_title || '',
+    positiveCount: Number.isFinite(Number(row.positive_count)) ? Number(row.positive_count) : 0,
+    negativeCount: Number.isFinite(Number(row.negative_count)) ? Number(row.negative_count) : 0,
+    neutralCount: Number.isFinite(Number(row.neutral_count)) ? Number(row.neutral_count) : 0,
+    highRelevanceCount: Number.isFinite(Number(row.high_relevance_count)) ? Number(row.high_relevance_count) : 0
+  };
+}
+
+export const EVENT_CATEGORY_META = {
+  all: { label: '全部事件', color: '#111111' },
+  discussion: { label: '讨论', color: '#555555' },
+  signal: { label: '信号', color: '#0f766e' },
+  technical: { label: '技术', color: '#2563eb' },
+  fundamental: { label: '基本面', color: '#059669' },
+  sentiment: { label: '情绪', color: '#7c3aed' },
+  valuation: { label: '估值', color: '#d97706' },
+  risk: { label: '风控', color: '#dc2626' },
+  portfolio: { label: '组合', color: '#111827' },
+  trade: { label: '成交', color: '#b91c1c' },
+  other: { label: '其他', color: '#6b7280' }
+};

frontend/src/components/explain/useExplainModel.js

@@ -0,0 +1,664 @@
+import { useMemo } from 'react';
+import { formatDateTime } from '../../utils/formatters';
+import {
+  aggregatePriceSeriesToCandles,
+  buildLinePath,
+  eventDateKey,
+  flattenFeedMessages,
+  includesTicker,
+  normalizeMentionRow,
+  normalizeNewsRow,
+  normalizeNewsTimelineRow,
+  normalizeSignalDirection,
+  normalizeSignalRow,
+  normalizeTradeRow,
+  parsePointTime,
+  resolveEventCategory,
+  snippetText
+} from './explainUtils';
+
+function tradeSideLabel(value) {
+  if (value === 'LONG') return '做多';
+  if (value === 'SHORT') return '做空';
+  return value || '交易';
+}
+
+export default function useExplainModel({
+  tickers,
+  holdings,
+  trades,
+  leaderboard,
+  feed,
+  priceHistoryByTicker,
+  ohlcHistoryByTicker,
+  selectedSymbol,
+  explainEventsSnapshot,
+  newsSnapshot,
+  selectedEventDate,
+  activeEventCategory,
+  activeNewsCategory,
+  activeNewsSentiment = 'all'
+}) {
+  const availableSymbols = useMemo(() => (
+    Array.isArray(tickers)
+      ? tickers.map((ticker) => ticker?.symbol).filter((symbol) => typeof symbol === 'string' && symbol.trim())
+      : []
+  ), [tickers]);
+
+  const selectedTicker = useMemo(
+    () => tickers.find((ticker) => ticker.symbol === selectedSymbol) || null,
+    [selectedSymbol, tickers]
+  );
+
+  const holding = useMemo(
+    () => holdings.find((item) => item.ticker === selectedSymbol) || null,
+    [holdings, selectedSymbol]
+  );
+
+  const fallbackTrades = useMemo(
+    () => trades
+      .filter((trade) => trade.ticker === selectedSymbol)
+      .sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime()),
+    [selectedSymbol, trades]
+  );
+
+  const tickerSignals = useMemo(() => {
+    const snapshotSignals = Array.isArray(explainEventsSnapshot?.signals)
+      ? explainEventsSnapshot.signals.map((signal, index) => normalizeSignalRow(signal, index)).filter(Boolean)
+      : [];
+    if (snapshotSignals.length > 0) {
+      return snapshotSignals.sort((a, b) => new Date(b.timestamp || b.date).getTime() - new Date(a.timestamp || a.date).getTime());
+    }
+    if (!selectedSymbol) return [];
+    return (Array.isArray(leaderboard) ? leaderboard : []).flatMap((agent) => {
+      const signals = Array.isArray(agent.signals) ? agent.signals : [];
+      return signals
+        .filter((signal) => signal.ticker === selectedSymbol)
+        .map((signal) => ({
+          agentId: agent.agentId,
+          agentName: agent.name,
+          role: agent.role,
+          ...signal,
+          normalizedDirection: normalizeSignalDirection(signal.signal)
+        }));
+    }).sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+  }, [explainEventsSnapshot, leaderboard, selectedSymbol]);
+
+  const signalSummary = useMemo(() => {
+    const summary = { bullish: 0, bearish: 0, neutral: 0 };
+    tickerSignals.forEach((signal) => {
+      summary[signal.normalizedDirection] += 1;
+    });
+    return summary;
+  }, [tickerSignals]);
+
+  const fallbackRecentMentions = useMemo(() => {
+    const flattened = flattenFeedMessages(feed);
+    return flattened
+      .filter((message) => message.agent !== 'System' && includesTicker(message.content, selectedSymbol))
+      .sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime())
+      .slice(0, 8);
+  }, [feed, selectedSymbol]);
+
+  const tickerTrades = useMemo(() => {
+    const snapshotTrades = Array.isArray(explainEventsSnapshot?.trades)
+      ? explainEventsSnapshot.trades.map((trade, index) => normalizeTradeRow(trade, index)).filter(Boolean)
+      : [];
+    if (snapshotTrades.length > 0) {
+      return snapshotTrades.sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime());
+    }
+    return fallbackTrades;
+  }, [explainEventsSnapshot, fallbackTrades]);
+
+  const recentMentions = useMemo(() => {
+    const snapshotMentions = Array.isArray(explainEventsSnapshot?.events)
+      ? explainEventsSnapshot.events
+        .map((event, index) => normalizeMentionRow(event, index))
+        .filter(Boolean)
+        .slice(0, 8)
+      : [];
+    if (snapshotMentions.length > 0) {
+      return snapshotMentions.sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime());
+    }
+    return fallbackRecentMentions;
+  }, [explainEventsSnapshot, fallbackRecentMentions]);
+
+  const tickerNews = useMemo(() => {
+    const items = Array.isArray(newsSnapshot?.items)
+      ? newsSnapshot.items.map((item, index) => normalizeNewsRow(item, index)).filter(Boolean)
+      : [];
+    return items.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+  }, [newsSnapshot]);
+
+  const dateScopedNews = useMemo(() => {
+    if (!selectedEventDate || !newsSnapshot?.byDate || typeof newsSnapshot.byDate !== 'object') {
+      return [];
+    }
+    const rows = Array.isArray(newsSnapshot.byDate[selectedEventDate])
+      ? newsSnapshot.byDate[selectedEventDate]
+      : [];
+    return rows.map((item, index) => normalizeNewsRow(item, index)).filter(Boolean);
+  }, [newsSnapshot, selectedEventDate]);
+
+  const visibleNews = useMemo(() => {
+    if (!selectedEventDate) {
+      return tickerNews;
+    }
+    if (dateScopedNews.length > 0) {
+      return dateScopedNews.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+    }
+    const scoped = tickerNews.filter((item) => item.dateKey === selectedEventDate);
+    return scoped.length > 0 ? scoped : tickerNews;
+  }, [dateScopedNews, selectedEventDate, tickerNews]);
+
+  const tickerNewsTimeline = useMemo(() => {
+    const items = Array.isArray(newsSnapshot?.timeline)
+      ? newsSnapshot.timeline.map((item, index) => normalizeNewsTimelineRow(item, index)).filter(Boolean)
+      : [];
+    return items.sort((a, b) => new Date(a.date).getTime() - new Date(b.date).getTime());
+  }, [newsSnapshot]);
+
+  const newsCategories = useMemo(() => (
+    newsSnapshot?.categories && typeof newsSnapshot.categories === 'object'
+      ? newsSnapshot.categories
+      : {}
+  ), [newsSnapshot]);
+
+  const visibleNewsByCategory = useMemo(() => {
+    let scopedNews = visibleNews;
+    if (activeNewsCategory !== 'all') {
+      const categoryMeta = newsCategories?.[activeNewsCategory];
+      const allowedIds = Array.isArray(categoryMeta?.article_ids)
+        ? new Set(categoryMeta.article_ids)
+        : null;
+      if (allowedIds && allowedIds.size > 0) {
+        scopedNews = scopedNews.filter((item) => allowedIds.has(item.id));
+      }
+    }
+
+    if (activeNewsSentiment === 'all') {
+      return scopedNews;
+    }
+    return scopedNews.filter((item) => {
+      const sentiment = String(item.sentiment || '').trim().toLowerCase() || 'neutral';
+      return sentiment === activeNewsSentiment;
+    });
+  }, [activeNewsCategory, activeNewsSentiment, newsCategories, visibleNews]);
+
+  const selectedRangeWindow = useMemo(() => {
+    if (!selectedEventDate) return null;
+    const endDate = new Date(`${selectedEventDate}T00:00:00`);
+    if (Number.isNaN(endDate.getTime())) return null;
+    const startDate = new Date(endDate);
+    startDate.setDate(startDate.getDate() - 6);
+    return {
+      startDate: startDate.toISOString().slice(0, 10),
+      endDate: selectedEventDate
+    };
+  }, [selectedEventDate]);
+
+  const selectedRangeExplain = useMemo(() => {
+    if (!selectedRangeWindow) return null;
+    const key = `${selectedRangeWindow.startDate}:${selectedRangeWindow.endDate}`;
+    return newsSnapshot?.rangeExplainCache?.[key] || null;
+  }, [newsSnapshot, selectedRangeWindow]);
+
+  const selectedStory = useMemo(() => {
+    const storyCache = newsSnapshot?.storyCache;
+    if (!storyCache || typeof storyCache !== 'object') {
+      return null;
+    }
+    const keys = Object.keys(storyCache).sort();
+    if (!keys.length) {
+      return null;
+    }
+    return storyCache[keys[keys.length - 1]] || null;
+  }, [newsSnapshot]);
+
+  const selectedSimilarDays = useMemo(() => {
+    if (!selectedEventDate) {
+      return null;
+    }
+    const similarCache = newsSnapshot?.similarDaysCache;
+    if (!similarCache || typeof similarCache !== 'object') {
+      return null;
+    }
+    return similarCache[selectedEventDate] || null;
+  }, [newsSnapshot, selectedEventDate]);
+
+  const latestSignal = tickerSignals[0] || null;
+  const priceColor = selectedTicker?.change > 0 ? '#00C853' : selectedTicker?.change < 0 ? '#FF1744' : '#000000';
+  const exposureWeight = holding && Number.isFinite(Number(holding.weight)) ? Number(holding.weight) * 100 : null;
+  const recentTrade = tickerTrades[0] || null;
+
+  const ohlcSeries = useMemo(() => {
+    const raw = ohlcHistoryByTicker?.[selectedSymbol];
+    return Array.isArray(raw) ? raw.filter((candle) => Number.isFinite(Number(candle.close))).slice(-60) : [];
+  }, [ohlcHistoryByTicker, selectedSymbol]);
+
+  const priceSeries = useMemo(() => {
+    const raw = priceHistoryByTicker?.[selectedSymbol];
+    return Array.isArray(raw) ? raw.filter((point) => Number.isFinite(Number(point.price))).slice(-60) : [];
+  }, [priceHistoryByTicker, selectedSymbol]);
+
+  const explainSummary = useMemo(() => {
+    if (!selectedSymbol) return [];
+    const lines = [];
+
+    if (latestSignal) {
+      const directionText = latestSignal.normalizedDirection === 'bullish'
+        ? '偏多'
+        : latestSignal.normalizedDirection === 'bearish'
+          ? '偏空'
+          : '观望';
+      lines.push(`最新分析师结论为${directionText}，来自${latestSignal.agentName}。`);
+    } else {
+      lines.push('当前还没有形成结构化分析师信号，更多依赖讨论内容和持仓状态。');
+    }
+
+    if (holding) {
+      lines.push(`组合当前持有 ${selectedSymbol}，权重约 ${exposureWeight != null ? `${exposureWeight.toFixed(2)}%` : '0.00%'}。`);
+    } else {
+      lines.push(`组合当前未持有 ${selectedSymbol}，仍处于观察阶段。`);
+    }
+
+    if (recentTrade) {
+      lines.push(`最近一次相关交易为${tradeSideLabel(recentTrade.side)}，时间是 ${formatDateTime(recentTrade.timestamp)}。`);
+    }
+
+    if (recentMentions.length > 0) {
+      lines.push(`最近讨论中共有 ${recentMentions.length} 条直接提及 ${selectedSymbol} 的观点。`);
+    }
+
+    return lines;
+  }, [exposureWeight, holding, latestSignal, recentMentions.length, recentTrade, selectedSymbol]);
+
+  const explainTimeline = useMemo(() => {
+    const signalEvents = tickerSignals.slice(0, 12).map((signal, index) => ({
+      id: `signal-${signal.agentId}-${signal.date}-${index}`,
+      type: 'signal',
+      timestamp: new Date(`${signal.date}T08:00:00`).toISOString(),
+      title: `${signal.agentName} 给出${signal.normalizedDirection === 'bullish' ? '看涨' : signal.normalizedDirection === 'bearish' ? '看跌' : '中性'}信号`,
+      meta: signal.role,
+      body: typeof signal.real_return === 'number'
+        ? `后验收益 ${signal.real_return >= 0 ? '+' : ''}${(signal.real_return * 100).toFixed(2)}%`
+        : '该信号暂未完成后验评估',
+      tone: signal.normalizedDirection === 'bullish' ? 'positive' : signal.normalizedDirection === 'bearish' ? 'negative' : 'neutral'
+    }));
+
+    const mentionEvents = recentMentions.slice(0, 12).map((message, index) => ({
+      id: `mention-${message.feedId || message.id}-${index}`,
+      type: 'mention',
+      timestamp: message.timestamp,
+      title: `${message.agent || '未知角色'}在${message.conferenceTitle || '讨论流'}中提及 ${selectedSymbol}`,
+      meta: message.conferenceTitle || (message.feedType === 'conference' ? '投资讨论' : '即时消息'),
+      body: snippetText(message.content, selectedSymbol),
+      tone: 'neutral'
+    }));
+
+    const tradeEvents = tickerTrades.slice(0, 12).map((trade, index) => ({
+      id: `trade-${trade.id || `${trade.ticker}-${trade.timestamp}-${index}`}`,
+      type: 'trade',
+      timestamp: trade.timestamp,
+      title: `${tradeSideLabel(trade.side)} ${trade.qty} 股`,
+      meta: '交易执行',
+      body: `成交价 $${Number(trade.price).toFixed(2)}`,
+      tone: trade.side === 'LONG' ? 'positive' : trade.side === 'SHORT' ? 'negative' : 'neutral'
+    }));
+
+    const fallbackTimeline = [...signalEvents, ...mentionEvents, ...tradeEvents]
+      .sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime())
+      .slice(0, 24)
+      .map((event) => ({
+        ...event,
+        dateKey: eventDateKey(event.timestamp),
+        category: resolveEventCategory(event)
+      }));
+    if (!explainEventsSnapshot) {
+      return fallbackTimeline;
+    }
+
+    const dbSignalEvents = (Array.isArray(explainEventsSnapshot.signals) ? explainEventsSnapshot.signals : [])
+      .map((signal, index) => {
+        if (signal?.type === 'signal' && signal?.timestamp) {
+          return signal;
+        }
+        const normalized = normalizeSignalRow(signal, index);
+        if (!normalized) return null;
+        return {
+          id: normalized.id,
+          type: 'signal',
+          timestamp: normalized.timestamp || (normalized.date ? new Date(`${normalized.date}T08:00:00`).toISOString() : null),
+          title: `${normalized.agentName} 给出${
+            normalized.normalizedDirection === 'bullish'
+              ? '看涨'
+              : normalized.normalizedDirection === 'bearish'
+                ? '看跌'
+                : '中性'
+          }信号`,
+          meta: normalized.role,
+          body: typeof normalized.real_return === 'number'
+            ? `后验收益 ${normalized.real_return >= 0 ? '+' : ''}${(normalized.real_return * 100).toFixed(2)}%`
+            : '该信号暂未完成后验评估',
+          tone: normalized.normalizedDirection === 'bullish'
+            ? 'positive'
+            : normalized.normalizedDirection === 'bearish'
+              ? 'negative'
+              : 'neutral'
+        };
+      })
+      .filter(Boolean);
+
+    const dbMentionEvents = (Array.isArray(explainEventsSnapshot.events) ? explainEventsSnapshot.events : [])
+      .map((event, index) => {
+        if (event?.type === 'mention' && event?.timestamp) {
+          return event;
+        }
+        const normalized = normalizeMentionRow(event, index);
+        if (!normalized) return null;
+        return {
+          id: normalized.id,
+          type: 'mention',
+          timestamp: normalized.timestamp,
+          title: `${normalized.agent || '未知角色'}在${normalized.conferenceTitle || '讨论流'}中提及 ${selectedSymbol}`,
+          meta: normalized.conferenceTitle || (normalized.feedType === 'conference' ? '投资讨论' : '即时消息'),
+          body: snippetText(normalized.content, selectedSymbol),
+          tone: 'neutral'
+        };
+      })
+      .filter(Boolean);
+
+    const dbTradeEvents = (Array.isArray(explainEventsSnapshot.trades) ? explainEventsSnapshot.trades : [])
+      .map((trade, index) => {
+        if (trade?.type === 'trade' && trade?.timestamp) {
+          return trade;
+        }
+        const normalized = normalizeTradeRow(trade, index);
+        if (!normalized) return null;
+        return {
+          id: normalized.id,
+          type: 'trade',
+          timestamp: normalized.timestamp,
+          title: `${tradeSideLabel(normalized.side)} ${normalized.qty} 股`,
+          meta: '交易执行',
+          body: `成交价 $${Number(normalized.price).toFixed(2)}`,
+          tone: normalized.side === 'LONG' ? 'positive' : normalized.side === 'SHORT' ? 'negative' : 'neutral'
+        };
+      })
+      .filter(Boolean);
+
+    const dbEvents = [
+      ...dbSignalEvents,
+      ...dbMentionEvents,
+      ...dbTradeEvents
+    ]
+      .sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime())
+      .slice(0, 24)
+      .map((event) => ({
+        ...event,
+        dateKey: eventDateKey(event.timestamp),
+        category: resolveEventCategory(event)
+      }));
+
+    return dbEvents.length > 0 ? dbEvents : fallbackTimeline;
+  }, [explainEventsSnapshot, recentMentions, selectedSymbol, tickerSignals, tickerTrades]);
+
+  const availableEventDates = useMemo(
+    () => Array.from(new Set(explainTimeline.map((event) => event.dateKey).filter(Boolean))),
+    [explainTimeline]
+  );
+
+  const eventCategoryCounts = useMemo(() => {
+    const scopedEvents = selectedEventDate
+      ? explainTimeline.filter((event) => event.dateKey === selectedEventDate)
+      : explainTimeline;
+    const counts = { all: scopedEvents.length };
+    scopedEvents.forEach((event) => {
+      counts[event.category] = (counts[event.category] || 0) + 1;
+    });
+    return counts;
+  }, [explainTimeline, selectedEventDate]);
+
+  const visibleExplainEvents = useMemo(() => explainTimeline.filter((event) => {
+    if (selectedEventDate && event.dateKey !== selectedEventDate) {
+      return false;
+    }
+    if (activeEventCategory !== 'all' && event.category !== activeEventCategory) {
+      return false;
+    }
+    return true;
+  }), [activeEventCategory, explainTimeline, selectedEventDate]);
+
+  const chartModel = useMemo(() => {
+    const width = 720;
+    const height = 220;
+    const padding = 18;
+    if (!ohlcSeries.length && !priceSeries.length) {
+      return {
+        width,
+        height,
+        padding,
+        path: '',
+        minPrice: null,
+        maxPrice: null,
+        markers: [],
+        candles: [],
+        linePoints: [],
+        bucketCount: 0
+      };
+    }
+
+    if (ohlcSeries.length > 1) {
+      const prices = ohlcSeries.flatMap((candle) => [Number(candle.low), Number(candle.high)]);
+      const minPrice = Math.min(...prices);
+      const maxPrice = Math.max(...prices);
+      const span = maxPrice - minPrice || 1;
+      const innerWidth = width - padding * 2;
+      const innerHeight = height - padding * 2;
+      const candleWidth = Math.max(8, Math.min(18, (innerWidth / ohlcSeries.length) * 0.55));
+      const startTime = parsePointTime({ timestamp: ohlcSeries[0]?.time });
+      const endTime = parsePointTime({ timestamp: ohlcSeries[ohlcSeries.length - 1]?.time });
+      const timeSpan = Math.max(endTime - startTime, 1);
+
+      const candles = ohlcSeries.map((candle, index) => {
+        const centerX = padding + ((index + 0.5) * innerWidth) / Math.max(ohlcSeries.length, 1);
+        const openY = height - padding - ((Number(candle.open) - minPrice) / span) * innerHeight;
+        const closeY = height - padding - ((Number(candle.close) - minPrice) / span) * innerHeight;
+        const highY = height - padding - ((Number(candle.high) - minPrice) / span) * innerHeight;
+        const lowY = height - padding - ((Number(candle.low) - minPrice) / span) * innerHeight;
+        return {
+          ...candle,
+          id: `${candle.time || index}`,
+          centerX,
+          x: centerX - candleWidth / 2,
+          width: candleWidth,
+          openY,
+          closeY,
+          highY,
+          lowY,
+          bodyY: Math.min(openY, closeY),
+          bodyHeight: Math.max(Math.abs(closeY - openY), 2)
+        };
+      });
+
+      const explainMarkers = explainTimeline.slice(0, 8).map((event) => {
+        const timestamp = new Date(event.timestamp).getTime();
+        if (!Number.isFinite(timestamp)) return null;
+        const ratio = Math.min(1, Math.max(0, (timestamp - startTime) / timeSpan));
+        const nearestCandleIndex = candles.length <= 1
+          ? 0
+          : Math.min(candles.length - 1, Math.max(0, Math.round(ratio * Math.max(candles.length - 1, 1))));
+        const nearestCandle = candles[nearestCandleIndex] || null;
+        const x = nearestCandle ? nearestCandle.centerX : padding + ratio * innerWidth;
+        const price = nearestCandle ? Number(nearestCandle.close) : Number(ohlcSeries[ohlcSeries.length - 1]?.close ?? maxPrice);
+        const y = height - padding - ((price - minPrice) / span) * innerHeight;
+        return { ...event, x, y, isSelected: event.dateKey === selectedEventDate, markerType: 'event' };
+      }).filter(Boolean);
+
+      const newsMarkers = tickerNewsTimeline.slice(-20).map((item, index) => {
+        const timestamp = new Date(`${item.date}T12:00:00`).getTime();
+        if (!Number.isFinite(timestamp)) return null;
+        const ratio = Math.min(1, Math.max(0, (timestamp - startTime) / timeSpan));
+        const nearestCandleIndex = candles.length <= 1
+          ? 0
+          : Math.min(candles.length - 1, Math.max(0, Math.round(ratio * Math.max(candles.length - 1, 1))));
+        const nearestCandle = candles[nearestCandleIndex] || null;
+        const x = nearestCandle ? nearestCandle.centerX : padding + ratio * innerWidth;
+        const price = nearestCandle ? Number(nearestCandle.close) : Number(ohlcSeries[ohlcSeries.length - 1]?.close ?? maxPrice);
+        const y = height - padding - ((price - minPrice) / span) * innerHeight;
+        return {
+          id: item.id || `news-marker-${index}`,
+          title: item.topTitle || `当日 ${item.count} 条新闻`,
+          dateKey: item.dateKey,
+          tone: 'news',
+          x,
+          y,
+          isSelected: item.dateKey === selectedEventDate,
+          markerType: 'news',
+          count: item.count
+        };
+      }).filter(Boolean);
+
+      return {
+        width,
+        height,
+        padding,
+        path: '',
+        minPrice,
+        maxPrice,
+        markers: [...newsMarkers, ...explainMarkers],
+        candles,
+        linePoints: [],
+        bucketCount: candles.length
+      };
+    }
+
+    const prices = priceSeries.map((point) => Number(point.price));
+    const minPrice = Math.min(...prices);
+    const maxPrice = Math.max(...prices);
+    const span = maxPrice - minPrice || 1;
+    const innerWidth = width - padding * 2;
+    const innerHeight = height - padding * 2;
+    const startTime = parsePointTime(priceSeries[0]);
+    const endTime = parsePointTime(priceSeries[priceSeries.length - 1]);
+    const timeSpan = Math.max(endTime - startTime, 1);
+    const candles = aggregatePriceSeriesToCandles(priceSeries);
+
+    const linePoints = priceSeries.map((point, index) => {
+      const x = padding + (innerWidth * index) / Math.max(priceSeries.length - 1, 1);
+      const y = height - padding - ((Number(point.price) - minPrice) / span) * innerHeight;
+      return { x, y };
+    });
+
+    const candleWidth = candles.length > 1
+      ? Math.max(8, Math.min(24, (innerWidth / candles.length) * 0.58))
+      : 14;
+
+    const mappedCandles = candles.map((candle, index) => {
+      const centerX = padding + ((index + 0.5) * innerWidth) / Math.max(candles.length, 1);
+      const openY = height - padding - ((candle.open - minPrice) / span) * innerHeight;
+      const closeY = height - padding - ((candle.close - minPrice) / span) * innerHeight;
+      const highY = height - padding - ((candle.high - minPrice) / span) * innerHeight;
+      const lowY = height - padding - ((candle.low - minPrice) / span) * innerHeight;
+      return {
+        ...candle,
+        centerX,
+        x: centerX - candleWidth / 2,
+        width: candleWidth,
+        openY,
+        closeY,
+        highY,
+        lowY,
+        bodyY: Math.min(openY, closeY),
+        bodyHeight: Math.max(Math.abs(closeY - openY), 2)
+      };
+    });
+
+    const explainMarkers = explainTimeline.slice(0, 8).map((event) => {
+      const timestamp = new Date(event.timestamp).getTime();
+      if (!Number.isFinite(timestamp)) return null;
+      const ratio = Math.min(1, Math.max(0, (timestamp - startTime) / timeSpan));
+      const nearestCandleIndex = mappedCandles.length <= 1
+        ? 0
+        : Math.min(
+          mappedCandles.length - 1,
+          Math.max(0, Math.round(ratio * Math.max(mappedCandles.length - 1, 1)))
+        );
+      const nearestCandle = mappedCandles[nearestCandleIndex] || null;
+      const x = nearestCandle ? nearestCandle.centerX : padding + ratio * innerWidth;
+      const price = nearestCandle ? nearestCandle.close : Number(priceSeries[priceSeries.length - 1]?.price ?? prices[prices.length - 1]);
+      const y = height - padding - ((price - minPrice) / span) * innerHeight;
+      return { ...event, x, y, isSelected: event.dateKey === selectedEventDate, markerType: 'event' };
+    }).filter(Boolean);
+
+    const newsMarkers = tickerNewsTimeline.slice(-20).map((item, index) => {
+      const timestamp = new Date(`${item.date}T12:00:00`).getTime();
+      if (!Number.isFinite(timestamp)) return null;
+      const ratio = Math.min(1, Math.max(0, (timestamp - startTime) / timeSpan));
+      const nearestCandleIndex = mappedCandles.length <= 1
+        ? 0
+        : Math.min(
+          mappedCandles.length - 1,
+          Math.max(0, Math.round(ratio * Math.max(mappedCandles.length - 1, 1)))
+        );
+      const nearestCandle = mappedCandles[nearestCandleIndex] || null;
+      const x = nearestCandle ? nearestCandle.centerX : padding + ratio * innerWidth;
+      const price = nearestCandle ? nearestCandle.close : Number(priceSeries[priceSeries.length - 1]?.price ?? prices[prices.length - 1]);
+      const y = height - padding - ((price - minPrice) / span) * innerHeight;
+      return {
+        id: item.id || `news-marker-${index}`,
+        title: item.topTitle || `当日 ${item.count} 条新闻`,
+        dateKey: item.dateKey,
+        tone: 'news',
+        x,
+        y,
+        isSelected: item.dateKey === selectedEventDate,
+        markerType: 'news',
+        count: item.count
+      };
+    }).filter(Boolean);
+
+    return {
+      width,
+      height,
+      padding,
+      path: buildLinePath(priceSeries, width, height, padding),
+      minPrice,
+      maxPrice,
+      markers: [...newsMarkers, ...explainMarkers],
+      candles: mappedCandles,
+      linePoints,
+      bucketCount: mappedCandles.length
+    };
+  }, [explainTimeline, ohlcSeries, priceSeries, selectedEventDate, tickerNewsTimeline]);
+
+  return {
+    availableSymbols,
+    selectedTicker,
+    holding,
+    tickerSignals,
+    signalSummary,
+    tickerTrades,
+    recentMentions,
+    tickerNews,
+    visibleNews,
+    newsCategories,
+    visibleNewsByCategory,
+    selectedRangeWindow,
+    selectedRangeExplain,
+    selectedStory,
+    selectedSimilarDays,
+    latestSignal,
+    priceColor,
+    exposureWeight,
+    recentTrade,
+    ohlcSeries,
+    priceSeries,
+    explainSummary,
+    explainTimeline,
+    availableEventDates,
+    eventCategoryCounts,
+    visibleExplainEvents,
+    chartModel
+  };
+}

frontend/src/components/explain/useExplainModel.test.jsx

@@ -0,0 +1,156 @@
+import React from 'react';
+import { describe, expect, it } from 'vitest';
+import { renderHook } from '@testing-library/react';
+import useExplainModel from './useExplainModel';
+
+function buildBaseProps() {
+  return {
+    tickers: [{ symbol: 'AAPL', price: 105.12, change: 1.34 }],
+    holdings: [{ ticker: 'AAPL', quantity: 10, weight: 0.2, marketValue: 1051.2, currentPrice: 105.12 }],
+    trades: [],
+    leaderboard: [],
+    feed: [],
+    priceHistoryByTicker: {
+      AAPL: [
+        { timestamp: '2026-03-08T10:00:00Z', price: 100 },
+        { timestamp: '2026-03-09T10:00:00Z', price: 103 },
+        { timestamp: '2026-03-10T10:00:00Z', price: 105 }
+      ]
+    },
+    ohlcHistoryByTicker: {},
+    selectedSymbol: 'AAPL',
+    explainEventsSnapshot: {
+      signals: [
+        {
+          id: 'sig-1',
+          ticker: 'AAPL',
+          date: '2026-03-10',
+          signal: 'bullish',
+          confidence: 0.88,
+          agent_id: 'agent-1',
+          agent_name: 'Alpha',
+          role: 'technical'
+        }
+      ],
+      events: [
+        {
+          id: 'mention-1',
+          timestamp: '2026-03-10T12:00:00Z',
+          agent: 'Research',
+          body: 'AAPL momentum remains strong after earnings.',
+          meta: 'morning note'
+        }
+      ],
+      trades: [
+        {
+          id: 'trade-1',
+          timestamp: '2026-03-10T15:00:00Z',
+          ticker: 'AAPL',
+          side: 'LONG',
+          qty: 5,
+          price: 104.5
+        }
+      ]
+    },
+    newsSnapshot: {
+      items: [
+        {
+          id: 'news-1',
+          ticker: 'AAPL',
+          date: '2026-03-10T09:00:00Z',
+          title: 'Apple earnings beat expectations',
+          summary: 'Revenue topped consensus estimates.',
+          source: 'Polygon',
+          sentiment: 'positive'
+        },
+        {
+          id: 'news-2',
+          ticker: 'AAPL',
+          date: '2026-03-09T09:00:00Z',
+          title: 'Supplier update',
+          summary: 'Supply chain improves.',
+          source: 'Polygon',
+          sentiment: 'negative'
+        }
+      ],
+      timeline: [
+        { id: 'timeline-1', date: '2026-03-09', count: 1, source_count: 1, top_title: 'Supplier update' },
+        { id: 'timeline-2', date: '2026-03-10', count: 1, source_count: 1, top_title: 'Apple earnings beat expectations' }
+      ],
+      categories: {
+        earnings: {
+          count: 1,
+          article_ids: ['news-1']
+        }
+      },
+      rangeExplainCache: {
+        '2026-03-03:2026-03-10': {
+          summary: '区间内主要由财报催化推动。'
+        }
+      },
+      similarDaysCache: {
+        '2026-03-10': {
+          target_features: {
+            sentiment_score: 0.5,
+            n_articles: 2
+          },
+          items: [
+            {
+              date: '2026-02-18',
+              score: 0.92,
+              n_articles: 2,
+              sentiment_score: 0.4
+            }
+          ]
+        }
+      }
+    },
+    selectedEventDate: '2026-03-10',
+    activeEventCategory: 'all',
+    activeNewsCategory: 'earnings',
+    activeNewsSentiment: 'all'
+  };
+}
+
+describe('useExplainModel', () => {
+  it('derives visible news and range explain data from snapshots', () => {
+    const { result } = renderHook(() => useExplainModel(buildBaseProps()));
+
+    expect(result.current.availableSymbols).toEqual(['AAPL']);
+    expect(result.current.visibleNews).toHaveLength(1);
+    expect(result.current.visibleNewsByCategory).toHaveLength(1);
+    expect(result.current.visibleNewsByCategory[0].id).toBe('news-1');
+    expect(result.current.selectedRangeWindow).toEqual({
+      startDate: '2026-03-03',
+      endDate: '2026-03-10'
+    });
+    expect(result.current.selectedRangeExplain).toEqual({
+      summary: '区间内主要由财报催化推动。'
+    });
+    expect(result.current.selectedSimilarDays?.items).toHaveLength(1);
+  });
+
+  it('builds timeline, counts, and chart markers from explain data', () => {
+    const { result } = renderHook(() => useExplainModel(buildBaseProps()));
+
+    expect(result.current.availableEventDates).toContain('2026-03-10');
+    expect(result.current.eventCategoryCounts.all).toBe(3);
+    expect(result.current.eventCategoryCounts.technical).toBe(1);
+    expect(result.current.eventCategoryCounts.discussion).toBe(1);
+    expect(result.current.eventCategoryCounts.trade).toBe(1);
+    expect(result.current.visibleExplainEvents).toHaveLength(3);
+    expect(result.current.chartModel.markers.length).toBeGreaterThan(0);
+    expect(result.current.chartModel.path).toMatch(/^M/);
+  });
+
+  it('filters visible news by sentiment when requested', () => {
+    const props = buildBaseProps();
+    props.activeNewsCategory = 'all';
+    props.activeNewsSentiment = 'positive';
+
+    const { result } = renderHook(() => useExplainModel(props));
+
+    expect(result.current.visibleNewsByCategory).toHaveLength(1);
+    expect(result.current.visibleNewsByCategory[0].id).toBe('news-1');
+  });
+});

frontend/vite.config.js

@@ -8,9 +8,11 @@ export default defineConfig({
     allowedHosts: ["localhost", "trading.evoagents.cn","www.evoagents.cn"]
   },
   plugins: [react(), tsconfigPaths(),tailwindcss()],
+  test: {
+    environment: "jsdom"
+  },
   preview: {
     host: "0.0.0.0",
     port: 4173
   },
 });
-

pyproject.toml

@@ -66,7 +66,8 @@ evotraders = "backend.cli:app"
 [tool.setuptools]
 packages = ["backend", "backend.agents", "backend.config",
             "backend.data", "backend.llm",
-            "backend.tools", "backend.utils", "backend.services"]
+            "backend.tools", "backend.utils", "backend.services",
+            "backend.explain", "backend.enrich"]
 
 [tool.ruff]
 line-length = 88
@@ -77,4 +78,4 @@ testpaths = ["backend/tests"]
 python_files = ["test_*.py"]
 python_classes = ["Test*"]
 python_functions = ["test_*"]
-
+asyncio_default_fixture_loop_scope = "function"

runs/smoke_fullstack/BOOTSTRAP.md

@@ -2,11 +2,6 @@
 tickers:
   - AAPL
   - MSFT
-- GOOGL
-- NVDA
-- TSLA
-- META
-- AMZN
 initial_cash: 100000
 margin_requirement: 0.0
 enable_memory: false