feat: Add flexible port configuration for development

- Change default ports to 7510 (backend) and 7511 (frontend) to avoid conflicts
- Add PORT environment variable support for both services
- Create docker-compose.dev.yml for development without SSL/nginx
- Add development script (scripts/dev.sh) for easy local development
- Create comprehensive port configuration documentation
- Update docker-compose.yml to support dynamic port configuration
- Add frontend .env.example with development settings

This allows running the application on custom ports internally without SSL,
making it easier to integrate with existing infrastructure.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

docker-compose.dev.yml

@@ -0,0 +1,74 @@
+version: '3.8'
+
+# Development docker-compose file
+# This configuration runs frontend and backend on custom ports without SSL/nginx proxy
+# Usage: docker compose -f docker-compose.dev.yml up
+
+services:
+  backend:
+    build:
+      context: ./backend
+      dockerfile: ../docker/Dockerfile.backend
+    container_name: minio-webui-backend-dev
+    restart: unless-stopped
+    environment:
+      NODE_ENV: development
+      PORT: 7510
+    env_file:
+      - .env
+    ports:
+      - "7510:7510"
+    volumes:
+      - ./backend:/app
+      - /app/node_modules
+      - ./logs:/app/logs
+      - ~/.mc:/home/nodejs/.mc:ro
+    depends_on:
+      - redis
+    networks:
+      - minio-webui-network
+    command: npm run dev
+
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: ../docker/Dockerfile.frontend.dev
+    container_name: minio-webui-frontend-dev
+    restart: unless-stopped
+    environment:
+      PORT: 7511
+      REACT_APP_API_URL: http://localhost:7510/api
+    ports:
+      - "7511:7511"
+    volumes:
+      - ./frontend:/app
+      - /app/node_modules
+    depends_on:
+      - backend
+    networks:
+      - minio-webui-network
+    stdin_open: true
+    tty: true
+
+  redis:
+    image: redis:7-alpine
+    container_name: minio-webui-redis-dev
+    restart: unless-stopped
+    command: redis-server --appendonly yes
+    volumes:
+      - redis-data:/data
+    networks:
+      - minio-webui-network
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+volumes:
+  redis-data:
+    driver: local
+
+networks:
+  minio-webui-network:
+    driver: bridge