chore: Update Docker configuration for frontend deployment

- Added SERVER_API_URL argument to the Dockerfile for backend API integration.
- Updated docker-compose.yml to include SERVER_API_URL for the frontend service.

These changes aim to ensure proper communication between the frontend and backend services during deployment.

docker/deploy/docker-compose.yml

@@ -42,6 +42,7 @@ services:
       dockerfile: ../docker/deploy/frontend.Dockerfile
       args:
         - NEXT_PUBLIC_API_URL=https://api.vexplor.com/api
+        - SERVER_API_URL=http://backend:3001
     container_name: pms-frontend-prod
     restart: always
     environment:

docker/deploy/frontend.Dockerfile

@@ -23,6 +23,10 @@ ENV NEXT_TELEMETRY_DISABLED 1
 ARG NEXT_PUBLIC_API_URL=https://api.vexplor.com/api
 ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
 
+# Next.js rewrites 프록시용 (빌드 시 routes-manifest.json에 포함됨)
+ARG SERVER_API_URL=http://backend:3001
+ENV SERVER_API_URL=$SERVER_API_URL
+
 # Build the application
 ENV DISABLE_ESLINT_PLUGIN=true
 RUN npm run build