refactor: 清理 Electron 遗留代码并优化项目结构

- 删除 Electron 主进程代码 (src/main/)
- 删除构建产物文件夹 (build/, dist/, release/)
- 清理 package.json 中的 Electron 依赖和脚本
- 删除 TypeScript 配置中的 Electron 相关文件
- 优化前端代码结构至 Tauri 标准结构 (src/renderer → src/)
- 删除移动端图标和不必要文件
- 更新文档说明技术栈变更为 Tauri

src/types.ts

@@ -0,0 +1,29 @@
+export interface Provider {
+  id: string
+  name: string
+  settingsConfig: Record<string, any>  // 完整的Claude Code settings.json配置
+  websiteUrl?: string
+}
+
+export interface AppConfig {
+  providers: Record<string, Provider>
+  current: string
+}
+
+declare global {
+  interface Window {
+    electronAPI: {
+      getProviders: () => Promise<Record<string, Provider>>
+      getCurrentProvider: () => Promise<string>
+      addProvider: (provider: Provider) => Promise<boolean>
+      deleteProvider: (id: string) => Promise<boolean>
+      updateProvider: (provider: Provider) => Promise<boolean>
+      switchProvider: (providerId: string) => Promise<boolean>
+      importCurrentConfigAsDefault: () => Promise<{ success: boolean; providerId?: string }>
+      getClaudeCodeConfigPath: () => Promise<string>
+      selectConfigFile: () => Promise<string | null>
+      openConfigFolder: () => Promise<boolean>
+      openExternal: (url: string) => Promise<boolean>
+    }
+  }
+}