feat(mcp): app-aware MCP panel and Codex MCP sync to config.toml

- Make MCP panel app-aware; pass appType from App and call APIs with current app
- Show active app in title: “MCP Management · Claude Code/Codex”
- Add sync_enabled_to_codex: project enabled servers from SSOT to ~/.codex/config.toml as [mcp.servers.*]
- Sync on enable/disable, delete, and provider switch (post live write)
- Add Tauri command sync_enabled_mcp_to_codex and expose window.api.syncEnabledMcpToCodex()
- Fix Rust borrow scopes in switch_provider to avoid E0502
- Add TS declarations for new Codex sync API

src/lib/tauri-api.ts

@@ -396,6 +396,16 @@ export const tauriAPI = {
     }
   },
 
+  // 手动同步：将启用的 MCP 投影到 ~/.codex/config.toml
+  syncEnabledMcpToCodex: async (): Promise<boolean> => {
+    try {
+      return await invoke<boolean>("sync_enabled_mcp_to_codex");
+    } catch (error) {
+      console.error("同步启用 MCP 到 config.toml 失败:", error);
+      throw error;
+    }
+  },
+
   importMcpFromClaude: async (): Promise<number> => {
     try {
       return await invoke<number>("import_mcp_from_claude");