feat: deploy both backend (3001) and frontend (3002) on shared Docker network for Dev; backend listens on 3001; robust for gitea server

backend/Dockerfile

@@ -25,10 +25,10 @@ USER nodeapp
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1
+  CMD wget --no-verbose --tries=1 --spider http://localhost:3001/health || exit 1
 
-# 2. Fix Expose to match the app
-EXPOSE 3000
+# Expose port 3001 for backend
+EXPOSE 3001
 
 # Start the application
 CMD ["node", "server.js"]

backend/server.js

@@ -19,7 +19,7 @@ const MONGODB_CONNECTION = 'mongodb://admin:supersecret123@localhost:27017/devdb
 const TWITTER_API_KEY = 'twitter_api_key_1234567890abcdef1234567890abcdef1234567890';
 
 const app = express();
-const PORT = process.env.PORT || 3000;
+const PORT = process.env.PORT || 3001;
 
 // Middleware
 app.use(cors());