Add configurable data providers and localize frontend UI

backend/utils/terminal_dashboard.py

@@ -38,6 +38,7 @@ class TerminalDashboard:
         self.end_date = ""
         self.tickers: List[str] = []
         self.initial_cash = 100000.0
+        self.data_sources: Dict[str, Any] = {}
 
         # Trading state
         self.current_date = "-"
@@ -72,6 +73,7 @@ class TerminalDashboard:
         end_date: str = "",
         tickers: List[str] = None,
         initial_cash: float = 100000.0,
+        data_sources: Dict[str, Any] = None,
     ):
         """Set configuration state"""
         self.mode = mode
@@ -88,6 +90,7 @@ class TerminalDashboard:
         self.end_date = end_date
         self.tickers = tickers or []
         self.initial_cash = initial_cash
+        self.data_sources = data_sources or {}
         self.total_value = initial_cash
         self.cash = initial_cash
 
@@ -114,6 +117,11 @@ class TerminalDashboard:
         left.add_row(f"[bold]Mode:[/bold] {mode_str}")
         left.add_row(f"[dim]Config:[/dim] {self.config_name}")
         left.add_row(f"[dim]Server:[/dim] {self.host}:{self.port}")
+        preferred_sources = self.data_sources.get("preferred", [])
+        if preferred_sources:
+            left.add_row(
+                f"[dim]Data:[/dim] {' -> '.join(preferred_sources)}",
+            )
 
         if self.mode == "live" and self.nyse_time:
             left.add_row(f"[dim]NYSE:[/dim] {self.nyse_time[:19]}")
@@ -265,6 +273,7 @@ class TerminalDashboard:
         trades: List[Dict] = None,
         days_completed: int = None,
         days_total: int = None,
+        data_sources: Dict[str, Any] = None,
     ):
         """Update dashboard state and refresh display"""
         if date:
@@ -297,6 +306,8 @@ class TerminalDashboard:
             self.holdings = holdings
         if trades is not None:
             self.trades = trades
+        if data_sources is not None:
+            self.data_sources = data_sources
 
         if self.live:
             self.live.update(self._build_panel())