fix(HEL-494): 切断网站生产装配外源直连，iFinD 与实时观察改走中枢

生产 gateway 不再实例化 iFinD、东财图和免费实时聚合器；问财与竞价快照作为中枢内部数据源。全站阻断外源测试覆盖日K、报价、图表、问财和竞价快照。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

tests/test_bootstrap_container.py

@@ -45,8 +45,9 @@ class BootstrapContainerTests(unittest.TestCase):
             self.assertIs(container.strategy_tracking.repository.database, database)
             self.assertIs(container.alert_service.repository.database, database)
             self.assertIs(container.trade_journal.repository.database, database)
-            self.assertIs(container.chart_data.ifind, container.ifind)
-            self.assertTrue(container.ifind.configured)
+            self.assertIs(container.ifind, container.data_gateway.ifind)
+            self.assertIs(container.chart_data.datahub, container.data_gateway.datahub)
+            self.assertIsNone(container.chart_data.ifind)
 
 
 if __name__ == "__main__":