chore: temporarily remove fdisk-sync from docker-compose and Makefile

Build is blocked by Apple npm proxy stripping devDependencies inside
Docker. Removing the service keeps the rest of the stack functional.
The sync/ directory and migration remain in place for when the build
issue is resolved.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -88,28 +88,6 @@ services:
       start_period: 30s
     restart: unless-stopped
 
-  fdisk-sync:
-    build:
-      context: ./sync
-      dockerfile: Dockerfile
-    container_name: feuerwehr_fdisk_sync
-    environment:
-      FDISK_USERNAME: ${FDISK_USERNAME:?FDISK_USERNAME is required}
-      FDISK_PASSWORD: ${FDISK_PASSWORD:?FDISK_PASSWORD is required}
-      FDISK_BASE_URL: ${FDISK_BASE_URL:-https://app.fdisk.at}
-      DB_HOST: postgres
-      DB_PORT: 5432
-      DB_NAME: ${POSTGRES_DB:-feuerwehr_prod}
-      DB_USER: ${POSTGRES_USER:-prod_user}
-      DB_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD is required}
-      TZ: Europe/Vienna
-    depends_on:
-      postgres:
-        condition: service_healthy
-    networks:
-      - dashboard-backend
-    restart: unless-stopped
-
 volumes:
   postgres_data_prod:
     driver: local