feat: add Docker support with deployment scripts and database backup functionality

deploy/vps/docker-compose.yml

@@ -0,0 +1,60 @@
+name: bmp-website
+
+services:
+  app:
+    build:
+      context: ${APP_ROOT:-/var/www/bmp-website}/current
+      args:
+        NEXT_PUBLIC_SERVER_URL: https://${APP_DOMAIN:-srv1.bayerischer-mittelstandspreis.de}
+        __NEXT_PRIVATE_ORIGIN: https://${APP_DOMAIN:-srv1.bayerischer-mittelstandspreis.de}
+    image: bmp-website:latest
+    container_name: bmp_website
+    restart: unless-stopped
+    env_file:
+      - ${APP_ROOT:-/var/www/bmp-website}/shared/.env
+    environment:
+      NODE_ENV: production
+      HOSTNAME: 0.0.0.0
+      PORT: 3000
+      DATABASE_URL: file:/app/shared/content.db
+      NEXT_PUBLIC_SERVER_URL: https://${APP_DOMAIN:-srv1.bayerischer-mittelstandspreis.de}
+    volumes:
+      - ${APP_ROOT:-/var/www/bmp-website}/shared/content.db:/app/shared/content.db
+      - ${APP_ROOT:-/var/www/bmp-website}/shared/media:/app/public/media
+    expose:
+      - "3000"
+    networks:
+      - web
+
+  caddy:
+    image: caddy:latest
+    container_name: bmp_caddy
+    restart: unless-stopped
+    command:
+      - caddy
+      - reverse-proxy
+      - --from
+      - ${APP_DOMAIN:-srv1.bayerischer-mittelstandspreis.de}
+      - --to
+      - app:3000
+    ports:
+      - "80:80"
+      - "443:443"
+    volumes:
+      - caddy_data:/data
+      - caddy_config:/config
+    depends_on:
+      - app
+    networks:
+      - web
+
+networks:
+  web:
+
+volumes:
+  caddy_data:
+    external: true
+    name: ${CADDY_DATA_VOLUME:-n8n-docker_caddy_data}
+  caddy_config:
+    external: true
+    name: ${CADDY_CONFIG_VOLUME:-n8n-docker_caddy_config}