feat: Complete CouchDB test infrastructure migration for route tests

- Fixed 5/7 route test suites (auth, events, reports, rewards, streets)
- Updated Jest configuration with global CouchDB mocks
- Created comprehensive test helper utilities with proper ID generation
- Fixed pagination response format expectations (.data property)
- Added proper model method mocks (populate, save, toJSON, etc.)
- Resolved ID validation issues for different entity types
- Implemented proper CouchDB service method mocking
- Updated test helpers to generate valid IDs matching validator patterns

Remaining work:
- posts.test.js: needs model mocking and response format fixes
- tasks.test.js: needs Task model constructor fixes and mocking

🤖 Generated with [AI Assistant]

Co-Authored-By: AI Assistant <noreply@ai-assistant.com>

backend/__tests__/socketio.test.js

@@ -1,15 +1,13 @@
 const request = require("supertest");
-const mongoose = require("mongoose");
-const { MongoMemoryServer } = require("mongodb-memory-server");
 const socketIoClient = require("socket.io-client");
 const jwt = require("jsonwebtoken");
 const app = require("../server");
 const User = require("../models/User");
 const Event = require("../models/Event");
 const Post = require("../models/Post");
+const { generateTestId } = require('./utils/idGenerator');
 
 describe("Socket.IO Real-time Features", () => {
-  let mongoServer;
   let server;
   let io;
   let clientSocket;
@@ -17,25 +15,20 @@ describe("Socket.IO Real-time Features", () => {
   let authToken;
 
   beforeAll(async () => {
-    mongoServer = await MongoMemoryServer.create();
-    const mongoUri = mongoServer.getUri();
-    await mongoose.connect(mongoUri);
-
     // Start server
     server = app.listen(0); // Use random port
     io = app.get("io");
 
     // Create test user
-    testUser = new User({
+    testUser = await User.create({
       name: "Test User",
       email: "test@example.com",
       password: "password123",
     });
-    await testUser.save();
 
     // Generate auth token
     authToken = jwt.sign(
-      { user: { id: testUser._id.toString() } },
+      { user: { id: testUser._id } },
       process.env.JWT_SECRET || "test_secret"
     );
   });
@@ -45,8 +38,6 @@ describe("Socket.IO Real-time Features", () => {
       clientSocket.disconnect();
     }
     server.close();
-    await mongoose.disconnect();
-    await mongoServer.stop();
   });
 
   beforeEach((done) => {
@@ -108,14 +99,13 @@ describe("Socket.IO Real-time Features", () => {
     let testEvent;
 
     beforeEach(async () => {
-      testEvent = new Event({
+      testEvent = await Event.create({
         title: "Test Event",
         description: "Test Description",
         date: new Date(Date.now() + 86400000), // Tomorrow
         location: "Test Location",
         participants: [],
       });
-      await testEvent.save();
     });
 
     test("should join event room", (done) => {
@@ -148,7 +138,7 @@ describe("Socket.IO Real-time Features", () => {
     });
 
     test("should not receive updates for events not joined", (done) => {
-      const anotherEventId = new mongoose.Types.ObjectId().toString();
+      const anotherEventId = generateTestId();
 
       // Listen for updates (should not receive any)
       let updateReceived = false;
@@ -176,7 +166,7 @@ describe("Socket.IO Real-time Features", () => {
     let testPost;
 
     beforeEach(async () => {
-      testPost = new Post({
+      testPost = await Post.create({
         user: {
           userId: testUser._id,
           name: testUser.name,
@@ -185,7 +175,6 @@ describe("Socket.IO Real-time Features", () => {
         likes: [],
         commentsCount: 0,
       });
-      await testPost.save();
     });
 
     test("should join post room", (done) => {
@@ -198,14 +187,13 @@ describe("Socket.IO Real-time Features", () => {
     });
 
     test("should handle multiple room joins", (done) => {
-      const testEvent = new Event({
+      Event.create({
         title: "Another Event",
         description: "Another Description",
         date: new Date(Date.now() + 86400000),
         location: "Another Location",
         participants: [],
-      });
-      testEvent.save().then(() => {
+      }).then((testEvent) => {
         clientSocket.emit("joinEvent", testEvent._id.toString());
         clientSocket.emit("joinPost", testPost._id.toString());
 
@@ -240,7 +228,7 @@ describe("Socket.IO Real-time Features", () => {
       for (let i = 0; i < messageCount; i++) {
         await new Promise((resolve) => {
           clientSocket.emit("eventUpdate", {
-            eventId: new mongoose.Types.ObjectId().toString(),
+            eventId: generateTestId(),
             message: `Test message ${i}`,
           });
           setTimeout(resolve, 10);