feat: 系统托盘 (#12)

* feat: 系统托盘

1. 添加系统托盘
2. 托盘添加切换供应商功能
3. 整理组件目录

* feat: 优化系统托盘菜单结构

- 扁平化Claude和Codex的菜单结构，直接将所有供应商添加到主菜单，简化用户交互。
- 添加无供应商时的提示信息，提升用户体验。
- 更新分隔符文本以增强可读性。

* feat: integrate Tailwind CSS and Lucide icons

- Added Tailwind CSS for styling and layout improvements.
- Integrated Lucide icons for enhanced UI elements.
- Updated project structure by removing unused CSS files and components.
- Refactored configuration files to support new styling and component structure.
- Introduced new components for managing providers with improved UI interactions.   

* fix: 修复类型声明和分隔符实现问题

- 修复 updateTrayMenu 返回类型不一致（Promise<void> -> Promise<boolean>）
- 添加缺失的 UnlistenFn 类型导入
- 使用 MenuBuilder.separator() 替代文本分隔符

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Co-authored-by: farion1231 <farion1231@gmail.c

src/vite-env.d.ts

@@ -2,6 +2,7 @@
 
 import { Provider } from "./types";
 import { AppType } from "./lib/tauri-api";
+import type { UnlistenFn } from "@tauri-apps/api/event";
 
 interface ImportResult {
   success: boolean;
@@ -30,6 +31,10 @@ declare global {
       selectConfigFile: () => Promise<string | null>;
       openConfigFolder: (app?: AppType) => Promise<void>;
       openExternal: (url: string) => Promise<void>;
+      updateTrayMenu: () => Promise<boolean>;
+      onProviderSwitched: (
+        callback: (data: { appType: string; providerId: string }) => void
+      ) => Promise<UnlistenFn>;
     };
     platform: {
       isMac: boolean;