feat(mcp): add option to mirror MCP config to other app

- Add syncOtherSide parameter to upsert_mcp_server_in_config command
- Implement checkbox UI in McpFormModal for cross-app sync
- Automatically sync enabled MCP servers to both Claude and Codex when option is checked
- Add i18n support for sync option labels and hints

src/vite-env.d.ts

@@ -84,6 +84,7 @@ declare global {
         app: AppType | undefined,
         id: string,
         spec: McpServer,
+        options?: { syncOtherSide?: boolean },
       ) => Promise<boolean>;
       deleteMcpServerInConfig: (
         app: AppType | undefined,