fix(mac): round app icon and regenerate .icns\n\n- Replace square icon with rounded squircle PNG\n- Regenerate build/icon.icns for mac packaging\n- Bump version to 2.0.1

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cc-switch",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Claude Code 供应商切换工具",
   "main": "dist/main/index.js",
   "scripts": {
@@ -88,4 +88,4 @@
       "icon": "build/icon.png"
     }
   }
-}
+}