Add ONE-OS Web legacy prototypes and sidebar menu folder.

Import desktop web originals into dedicated prototypes with a shared legacy shell, sync script, and a new「ONE-OS Web 端」sidebar section for review alongside existing refactored pages.

Co-authored-by: Cursor <cursoragent@cursor.com>

tsconfig.typecheck.json

@@ -15,5 +15,8 @@
     "tests",
     "vite-plugins",
     "vite.config.ts"
+  ],
+  "exclude": [
+    "src/resources/oneos-web-legacy/**"
   ]
 }