refactor: remove meaningless comments

Remove 50+ noise comments across the codebase:
- AI-generated verbose prose (💡 emoji, '超进化', '大闸', etc.)
- Comments that restate what the code obviously does
- Comments about deleted code
- Import-level noise comments
- Overly verbose Chinese section markers

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/providers/AppRoot.tsx

@@ -1,6 +1,6 @@
 import React from 'react';
 import { ThemeModeProvider } from './ThemeModeProvider';
-import { RouterProvider } from './RouterProvider'; // 💡 1. 全局合龙：引入满血重构的路由中枢
+import { RouterProvider } from './RouterProvider';
 
 interface AppRootProps {
   children: React.ReactNode;