feat(HEL-240): 按确认样图还原桌面登录页左右骨架

把登录门户改回确认稿的品牌行、中下部主标题、底部行情标签和 K 线背景，并让超宽屏按比例展开左栏。

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

config/architecture-inventory.json

@@ -374,10 +374,10 @@
     }
   ],
   "css_layers": [
-    "/shared/tokens.css?v=20260829-1",
+    "/shared/tokens.css?v=20260829-hel240",
     "/shared/base.css?v=20260806-1",
     "/shared/shell.css?v=20260829-hel237",
-    "/shared/auth.css?v=20260829-hel237",
+    "/shared/auth.css?v=20260829-hel240",
     "/shared/components/controls.css?v=20260829-hel237",
     "/shared/components/navigation.css?v=20260820-1",
     "/shared/components/cards.css?v=20260820-1",
@@ -465,7 +465,7 @@
     },
     {
       "path": "frontend/index.html",
-      "bytes": 48248,
+      "bytes": 48253,
       "lines": 664
     },
     {