Add Docker Compose configuration and environment files for local and production setups

- Created docker-compose.docker-local.yml for local testing of frontend and backend services.
- Added .env.development for development environment configuration.
- Introduced .env.docker-local for local Docker environment settings.
- Added .env.production for production environment configuration for Synology deployment.

code/websites/pokedex.online/docker-compose.docker-local.yml

@@ -0,0 +1,82 @@
+# Pokedex.Online Local Docker Compose
+# For testing production builds locally before deploying to Synology
+# Frontend: http://localhost:8099
+# Backend: http://localhost:3099
+
+services:
+  # Frontend - Nginx serving built Vue.js app
+  frontend:
+    build:
+      context: .
+      dockerfile: Dockerfile.frontend
+    container_name: pokedex-frontend-docker-local
+    ports:
+      - '8099:80'
+    depends_on:
+      backend:
+        condition: service_healthy
+    restart: unless-stopped
+    networks:
+      - pokedex-network
+    healthcheck:
+      test:
+        [
+          'CMD',
+          'wget',
+          '--quiet',
+          '--tries=1',
+          '--spider',
+          'http://localhost:80/'
+        ]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  # Backend - Node.js API server
+  backend:
+    build:
+      context: ./server
+      dockerfile: Dockerfile
+    container_name: pokedex-backend-docker-local
+    ports:
+      - '3099:3000'
+    environment:
+      - DEPLOYMENT_TARGET=docker-local
+      - NODE_ENV=production
+      - PORT=3000
+      - FRONTEND_URL=http://localhost:8099
+    env_file:
+      - ./server/.env
+    volumes:
+      # Persist OAuth session data
+      - ./server/data:/app/data
+      # Persist logs
+      - ./server/logs:/app/logs
+    restart: unless-stopped
+    networks:
+      - pokedex-network
+    healthcheck:
+      test:
+        [
+          'CMD',
+          'wget',
+          '--quiet',
+          '--tries=1',
+          '--spider',
+          'http://localhost:3000/health'
+        ]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+networks:
+  pokedex-network:
+    driver: bridge
+
+volumes:
+  backend-data:
+    driver: local
+  backend-logs:
+    driver: local