refactor: route market providers through data gateway

backend/bootstrap/container.py

@@ -2,9 +2,11 @@ from __future__ import annotations
 
 from dataclasses import dataclass
 from pathlib import Path
+from collections.abc import Callable
 
 from alert_service import AlertService
-from chart_data_provider import EastmoneyChartClient, MarketChartClient
+from backend.data import DataGateway, build_data_gateway
+from chart_data_provider import MarketChartClient
 from database import ReviewDatabase
 from ifind_client import IfindHttpClient
 from mentor_agent import MentorSkillRegistry
@@ -17,6 +19,7 @@ from trade_journal import TradeJournalService
 @dataclass(frozen=True)
 class ApplicationContainer:
     database: ReviewDatabase
+    data_gateway: DataGateway
     ifind: IfindHttpClient
     screener: ScreenerEngine
     strategy_tracking: StrategyTrackingService
@@ -32,19 +35,18 @@ def build_application_container(
     credentials: dict[str, object],
     mentor_skills_dir: Path,
     private_mentor_skills_dir: Path,
+    tushare_token_supplier: Callable[[], str] | None = None,
 ) -> ApplicationContainer:
-    ifind = IfindHttpClient(
-        str(credentials.get("ifind_refresh_token") or ""),
-        str(credentials.get("ifind_access_token") or ""),
-    )
+    data_gateway = build_data_gateway(credentials, tushare_token_supplier)
     return ApplicationContainer(
         database=database,
-        ifind=ifind,
+        data_gateway=data_gateway,
+        ifind=data_gateway.ifind,
         screener=ScreenerEngine(database),
         strategy_tracking=StrategyTrackingService(database),
         alert_service=AlertService(database),
         trade_journal=TradeJournalService(database),
         mentor_skills=MentorSkillRegistry(mentor_skills_dir, private_mentor_skills_dir),
-        realtime_aggregator=WebRealtimeAggregator(),
-        chart_data=MarketChartClient(ifind, EastmoneyChartClient()),
+        realtime_aggregator=data_gateway.realtime_observer,
+        chart_data=data_gateway.chart_data,
     )