Adding UI of FeedBack, Registration, Admin console

lib/mongodb.ts

@@ -0,0 +1,21 @@
+import mongoose from "mongoose";
+
+/** Cached connection for Next.js hot reload (global is preserved across HMR). */
+const globalForMongoose = globalThis as typeof globalThis & {
+  mongooseConn?: typeof mongoose;
+};
+
+export default async function connectDB(): Promise<typeof mongoose> {
+  const uri = process.env.MONGODB_URI;
+  if (!uri) {
+    throw new Error("MONGODB_URI is not set. Add it to .env (e.g. mongodb://localhost:27017/ipv6_summit).");
+  }
+
+  if (globalForMongoose.mongooseConn?.connection?.readyState === 1) {
+    return globalForMongoose.mongooseConn;
+  }
+
+  const conn = await mongoose.connect(uri);
+  globalForMongoose.mongooseConn = conn;
+  return conn;
+}