feat: add common config snippet management system

- Add settings module for managing common configuration snippets
- Implement UI for creating, editing, and deleting snippets
- Add tauri-plugin-fs for file operations
- Replace co-authored setting with flexible snippet system
- Enable users to define custom config snippets for frequently used settings

src/vite-env.d.ts

@@ -28,6 +28,7 @@ declare global {
       getClaudeCodeConfigPath: () => Promise<string>;
       getClaudeConfigStatus: () => Promise<ConfigStatus>;
       getConfigStatus: (app?: AppType) => Promise<ConfigStatus>;
+      getConfigDir: (app?: AppType) => Promise<string>;
       selectConfigFile: () => Promise<string | null>;
       openConfigFolder: (app?: AppType) => Promise<void>;
       openExternal: (url: string) => Promise<void>;