feat: 微服务架构拆分和前后端优化

后端:
- 拆分出 agent_service, runtime_service, trading_service, news_service
- Gateway 模块化拆分 (gateway_*.py)
- 添加 domains/ 领域层
- 新增 control_client, runtime_client
- 更新 start-dev.sh 支持 split 服务模式

前端:
- 完善 API 服务层 (newsApi, tradingApi)
- 更新 vite.config.js
- Explain 组件优化

测试:
- 添加多个服务 app 测试

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/tests/test_gateway_support_modules.py

@@ -0,0 +1,211 @@
+# -*- coding: utf-8 -*-
+"""Direct tests for Gateway support modules."""
+
+from types import SimpleNamespace
+
+import pytest
+
+from backend.services import gateway_cycle_support, gateway_runtime_support
+
+
+class _DummyDashboard:
+    def __init__(self):
+        self.updated = []
+        self.tickers = []
+        self.initial_cash = None
+        self.enable_memory = False
+        self.days_total = 0
+
+    def update(self, **kwargs):
+        self.updated.append(kwargs)
+
+    def stop(self):
+        return None
+
+    def print_final_summary(self):
+        return None
+
+
+class _DummyScheduler:
+    def __init__(self):
+        self.calls = []
+
+    def reconfigure(self, **kwargs):
+        self.calls.append(kwargs)
+
+
+class _DummyStateSync:
+    def __init__(self):
+        self.updated = []
+        self.saved = False
+        self.system_messages = []
+        self.backtest_dates = []
+        self.state = {}
+
+    def update_state(self, key, value):
+        self.updated.append((key, value))
+        self.state[key] = value
+
+    def save_state(self):
+        self.saved = True
+
+    async def on_system_message(self, message):
+        self.system_messages.append(message)
+
+    def set_backtest_dates(self, dates):
+        self.backtest_dates = list(dates)
+
+
+class _DummyStorage:
+    def __init__(self):
+        self.initial_cash = 100000.0
+        self.is_live_session_active = False
+        self.server_state_updates = []
+
+    def can_apply_initial_cash(self):
+        return True
+
+    def apply_initial_cash(self, value):
+        self.initial_cash = value
+        return True
+
+    def update_server_state_from_dashboard(self, state):
+        self.server_state_updates.append(state)
+
+    def load_file(self, name):
+        if name == "summary":
+            return {"totalAssetValue": self.initial_cash}
+        return []
+
+
+class _DummyPM:
+    def __init__(self):
+        self.portfolio = {"margin_requirement": 0.0}
+
+    def apply_runtime_portfolio_config(self, margin_requirement=None, initial_cash=None):
+        if margin_requirement is not None:
+            self.portfolio["margin_requirement"] = margin_requirement
+        return {"margin_requirement": True}
+
+    def can_apply_initial_cash(self):
+        return True
+
+
+class _DummyMarketService:
+    def __init__(self):
+        self.updated = None
+        self.stopped = False
+
+    def update_tickers(self, tickers):
+        self.updated = list(tickers)
+        return {"active": list(tickers), "added": list(tickers), "removed": []}
+
+    def stop(self):
+        self.stopped = True
+
+
+def make_gateway_stub():
+    pipeline = SimpleNamespace(max_comm_cycles=0, pm=_DummyPM())
+    gateway = SimpleNamespace(
+        market_service=_DummyMarketService(),
+        pipeline=pipeline,
+        scheduler=_DummyScheduler(),
+        config={
+            "tickers": ["AAPL"],
+            "schedule_mode": "daily",
+            "interval_minutes": 60,
+            "trigger_time": "09:30",
+            "enable_memory": False,
+        },
+        storage=_DummyStorage(),
+        state_sync=_DummyStateSync(),
+        _dashboard=_DummyDashboard(),
+        _watchlist_ingest_task=None,
+        _market_status_task=None,
+        _backtest_task=None,
+        _backtest_start_date=None,
+        _backtest_end_date=None,
+        _manual_cycle_task=None,
+    )
+    return gateway
+
+
+def test_normalize_watchlist_filters_invalid_and_dedupes():
+    assert gateway_runtime_support.normalize_watchlist(["aapl", " AAPL ", "", "msft"]) == ["AAPL", "MSFT"]
+    assert gateway_runtime_support.normalize_watchlist("aapl,msft") == ["AAPL", "MSFT"]
+
+
+def test_normalize_agent_workspace_filename_obeys_allowlist():
+    allowlist = {"SOUL.md", "PROFILE.md"}
+    assert gateway_runtime_support.normalize_agent_workspace_filename("SOUL.md", allowlist=allowlist) == "SOUL.md"
+    assert gateway_runtime_support.normalize_agent_workspace_filename("README.md", allowlist=allowlist) is None
+
+
+def test_apply_runtime_config_updates_gateway_state():
+    gateway = make_gateway_stub()
+
+    result = gateway_runtime_support.apply_runtime_config(
+        gateway,
+        {
+            "tickers": ["MSFT", "NVDA"],
+            "schedule_mode": "intraday",
+            "interval_minutes": 30,
+            "trigger_time": "10:30",
+            "initial_cash": 150000.0,
+            "margin_requirement": 0.5,
+            "max_comm_cycles": 4,
+            "enable_memory": False,
+        },
+    )
+
+    assert gateway.config["tickers"] == ["MSFT", "NVDA"]
+    assert gateway.config["schedule_mode"] == "intraday"
+    assert gateway.storage.initial_cash == 150000.0
+    assert result["runtime_config_applied"]["max_comm_cycles"] == 4
+    assert gateway.scheduler.calls[-1] == {
+        "mode": "intraday",
+        "trigger_time": "10:30",
+        "interval_minutes": 30,
+    }
+
+
+def test_schedule_watchlist_market_store_refresh_creates_task(monkeypatch):
+    gateway = make_gateway_stub()
+    captured = {}
+
+    class DummyTask:
+        def done(self):
+            return False
+
+        def cancel(self):
+            captured["cancelled"] = True
+
+    def fake_create_task(coro):
+        captured["name"] = coro.cr_code.co_name
+        coro.close()
+        return DummyTask()
+
+    monkeypatch.setattr(gateway_cycle_support.asyncio, "create_task", fake_create_task)
+
+    gateway_cycle_support.schedule_watchlist_market_store_refresh(gateway, ["AAPL", "MSFT"])
+
+    assert captured["name"] == "refresh_market_store_for_watchlist"
+
+
+@pytest.mark.asyncio
+async def test_refresh_market_store_for_watchlist_emits_system_messages(monkeypatch):
+    gateway = make_gateway_stub()
+
+    monkeypatch.setattr(
+        gateway_cycle_support,
+        "ingest_symbols",
+        lambda symbols, mode="incremental": [
+            {"symbol": symbol, "prices": 3, "news": 4}
+            for symbol in symbols
+        ],
+    )
+
+    await gateway_cycle_support.refresh_market_store_for_watchlist(gateway, ["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]