feat: Initialize the core backend API server, frontend application structure, and implement batch RT import functionality.

backend/cmd/main.go

@@ -186,6 +186,11 @@ func startServer(cfg *config.Config) {
 	// Owner 降级 API
 	mux.HandleFunc("/api/demote/owner", api.CORS(api.HandleDemoteOwner))
 
+	// 批量 RT 导入 API
+	mux.HandleFunc("/api/rt-import/start", api.CORS(api.HandleRTImportStart))
+	mux.HandleFunc("/api/rt-import/status", api.CORS(api.HandleRTImportStatus))
+	mux.HandleFunc("/api/rt-import/stop", api.CORS(api.HandleRTImportStop))
+
 	// 嵌入的前端静态文件
 	if web.IsEmbedded() {
 		webFS := web.GetFileSystem()