Title: [BUG] Widespread port mismatch (4000 vs 8080) across documentation and environment defaults

Dockerfile

@@ -76,6 +76,6 @@ RUN pnpm install --prod
 
 WORKDIR /app/apps/api
 
-EXPOSE 4000
+EXPOSE 8080
 
 CMD ["node", "dist/index.js"]

README.md

@@ -183,7 +183,7 @@ Now run the server:
 pnpm run dev
 ```
 
-Voila! Your API server is running on `localhost:4000`.
+Voila! Your API server is running on `localhost:8080`.
 
 Now you can access your app at `http://localhost:3000`.
 
@@ -208,24 +208,24 @@ docker build -t opensox-api .
 3. Run the container with your environment variables:
 
 ```bash
-docker run -p 4000:4000 \
+docker run -p 8080:8080 \
   --env-file apps/api/.env \
   opensox-api
 ```
 
 Or if you prefer to pass environment variables individually:
 
 ```bash
-docker run -p 4000:4000 \
+docker run -p 8080:8080 \
   -e DATABASE_URL="postgresql://USER:PASSWORD@host.docker.internal:5432/opensox?schema=public" \
   -e JWT_SECRET="your-secret" \
-  -e PORT=4000 \
+  -e PORT=8080 \
   opensox-api
 ```
 
 **Note:** When using Docker, if your database is running on your host machine (not in a container), use `host.docker.internal` instead of `localhost` in your `DATABASE_URL`.
 
-Your API server will be available at `http://localhost:4000`.
+Your API server will be available at `http://localhost:8080`.
 
 ### Using Docker Compose (Optional)
 
@@ -248,11 +248,11 @@ services:
   api:
     build: .
     ports:
-      - "4000:4000"
+      - "8080:8080"
     environment:
       DATABASE_URL: postgresql://opensox:opensox@postgres:5432/opensox?schema=public
       JWT_SECRET: your-secret-key
-      PORT: 4000
+      PORT: 8080
       NODE_ENV: production
     depends_on:
       - postgres

apps/api/src/index.ts

@@ -18,7 +18,7 @@ import { SUBSCRIPTION_STATUS } from "./constants/subscription.js";
 dotenv.config();
 
 const app = express();
-const PORT = process.env.PORT || 4000;
+const PORT = process.env.PORT || 8080;
 const CORS_ORIGINS = process.env.CORS_ORIGINS
   ? process.env.CORS_ORIGINS.split(",")
   : ["http://localhost:3000", "http://localhost:5000"];