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>

config/architecture-inventory.json

@@ -207,27 +207,22 @@
     {
       "provider": "datahub",
       "path": "backend/data/datahub/client.py",
-      "runtime_role": "optional official EOD read path behind per-dataset flags"
+      "runtime_role": "website-only read path; official EOD, live quotes, and licensed iFinD"
     },
     {
       "provider": "ifind",
-      "path": "backend/data/providers/ifind_client.py",
-      "runtime_role": "realtime, charts, snapshots, enrichment"
+      "path": "xiaobai-datahub/datahub/adapters/ifind.py",
+      "runtime_role": "licensed iFinD source inside the data hub"
     },
     {
       "provider": "eastmoney",
-      "path": "backend/features/market/charts.py",
-      "runtime_role": "display chart fallback"
-    },
-    {
-      "provider": "eastmoney",
-      "path": "backend/data/realtime.py",
-      "runtime_role": "isolated realtime observation and intraday dashboard fallback"
+      "path": "xiaobai-datahub/datahub/adapters/eastmoney.py",
+      "runtime_role": "free realtime quotes and shenwan inside the data hub"
     },
     {
       "provider": "tencent",
-      "path": "backend/data/realtime.py",
-      "runtime_role": "index observation and intraday quote fallback"
+      "path": "xiaobai-datahub/datahub/adapters/tencent.py",
+      "runtime_role": "free index and stock quotes inside the data hub"
     }
   ],
   "provider_domains": [
@@ -296,16 +291,16 @@
       "owner": "backend/data/gateway.py"
     },
     {
-      "client": "IfindHttpClient",
+      "client": "HubIfindProxy",
+      "owner": "backend/data/gateway.py"
+    },
+    {
+      "client": "HubRealtimeProxy",
       "owner": "backend/data/gateway.py"
     },
     {
       "client": "MarketChartClient",
       "owner": "backend/data/gateway.py"
-    },
-    {
-      "client": "WebRealtimeAggregator",
-      "owner": "backend/data/gateway.py"
     }
   ],
   "heaven_service_owners": {