feat(HEL-490): 剩余行情改由数据中枢主线路提供

正式页面以 8766 为主线路，旧接口只作故障备用；compose 钉死全部 DATAHUB_READ_*，避免现网残留 0 造成假完成。

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

config/architecture-inventory.json

@@ -483,8 +483,8 @@
     },
     {
       "path": "frontend/index.html",
-      "bytes": 48254,
-      "lines": 664
+      "bytes": 48447,
+      "lines": 665
     },
     {
       "path": "backend/features/screener/catalog.py",
@@ -496,6 +496,11 @@
       "bytes": 35247,
       "lines": 2416
     },
+    {
+      "path": "backend/data/providers/tushare_dashboard.py",
+      "bytes": 33603,
+      "lines": 784
+    },
     {
       "path": "database.py",
       "bytes": 32073,
@@ -506,11 +511,6 @@
       "bytes": 31756,
       "lines": 562
     },
-    {
-      "path": "backend/data/providers/tushare_dashboard.py",
-      "bytes": 31361,
-      "lines": 732
-    },
     {
       "path": "backend/data/providers/tushare_industries.py",
       "bytes": 26540,
@@ -551,6 +551,11 @@
       "bytes": 15311,
       "lines": 387
     },
+    {
+      "path": "frontend/shared/admin.js",
+      "bytes": 15235,
+      "lines": 289
+    },
     {
       "path": "frontend/shared/dashboard.js",
       "bytes": 15063,
@@ -566,11 +571,6 @@
       "bytes": 14743,
       "lines": 342
     },
-    {
-      "path": "frontend/shared/admin.js",
-      "bytes": 14410,
-      "lines": 268
-    },
     {
       "path": "backend/features/heaven/market_context.py",
       "bytes": 13681,
@@ -581,15 +581,20 @@
       "bytes": 13219,
       "lines": 289
     },
+    {
+      "path": "backend/features/system/service.py",
+      "bytes": 12937,
+      "lines": 271
+    },
     {
       "path": "backend/features/market/insights_auction_data.py",
       "bytes": 12829,
       "lines": 318
     },
     {
-      "path": "backend/features/system/service.py",
-      "bytes": 12392,
-      "lines": 254
+      "path": "backend/data/providers/tushare_indices.py",
+      "bytes": 10956,
+      "lines": 248
     },
     {
       "path": "backend/features/market/insights_auction.py",
@@ -631,11 +636,6 @@
       "bytes": 8357,
       "lines": 116
     },
-    {
-      "path": "backend/data/providers/tushare_indices.py",
-      "bytes": 7823,
-      "lines": 173
-    },
     {
       "path": "backend/features/screener/formula.py",
       "bytes": 6983,