feat: configure Tauri build system and app metadata

- Update Vite config for Tauri integration
- Configure package.json scripts for Tauri commands
- Generate multi-platform app icons
- Update app metadata and window configuration

src-tauri/tauri.conf.json

@@ -1,8 +1,8 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
-  "productName": "cc-switch",
-  "version": "0.1.0",
-  "identifier": "com.tauri.dev",
+  "productName": "CC Switch",
+  "version": "3.0.0-beta.1",
+  "identifier": "com.ccswitch.app",
   "build": {
     "frontendDist": "../build",
     "devUrl": "http://localhost:3000",
@@ -12,9 +12,11 @@
   "app": {
     "windows": [
       {
-        "title": "cc-switch",
-        "width": 800,
-        "height": 600,
+        "title": "CC Switch - Claude Code 供应商切换工具",
+        "width": 900,
+        "height": 650,
+        "minWidth": 800,
+        "minHeight": 600,
         "resizable": true,
         "fullscreen": false
       }