Initial commit for open-source version

backend/src/middleware/errorHandler.ts

@@ -0,0 +1,9 @@
+import { Request, Response, NextFunction } from "express";
+
+export const errorHandler = (err: any, req: Request, res: Response, next: NextFunction) => {
+  console.error(err);
+  res.status(err.status || 500).json({
+    success: false,
+    error: err.message || "服务器内部错误",
+  });
+};