fix: update MongoClient import to use npm package and adjust initialization

Author: opbot-xd

src/backend/db.ts

@@ -2,9 +2,9 @@ import { MongoClient } from "./dependencies.ts";
 import getProviderUser from "./utils/get-user.ts";
 import DfContentMap from "./types/maps_interface.ts";
 
-// Initialize MongoClient
-const client = new MongoClient();
+// Initialize MongoClient with npm driver
 const MONGO_URI = Deno.env.get("MONGO_URI");
+const client = MONGO_URI ? new MongoClient(MONGO_URI) : null;
 
 console.log("--- DB INIT DEBUG ---");
 console.log("CWD:", Deno.cwd());
@@ -18,10 +18,10 @@ let userAuthCollection: any;
 let contentMapsCollection: any;
 
 try {
-  if (MONGO_URI) {
+  if (MONGO_URI && client) {
     console.log("Attempting to connect to MongoDB...");
-    await client.connect(MONGO_URI);
-    db = client.database("df_test");
+    await client.connect();
+    db = client.db("df_test");
     userAuthCollection = db.collection("user_auth");
     contentMapsCollection = db.collection("content_maps");
     console.log("✅ Connected to MongoDB successfully");

src/backend/dependencies.ts

@@ -11,7 +11,7 @@ import { exec } from "https://deno.land/x/exec@0.0.5/mod.ts";
 import * as Sentry from 'https://deno.land/x/sentry/index.mjs';
 import { oakCors } from "https://deno.land/x/cors@v1.2.2/mod.ts";
 import { load } from "https://deno.land/std@0.224.0/dotenv/mod.ts";
-import { MongoClient, ObjectId } from "https://deno.land/x/mongo@v0.33.0/mod.ts";
+import { MongoClient, ObjectId } from "npm:mongodb@6.1.0";
 
 try {
   await load({ export: true }); // Try default .env in CWD