chore: Remove exposed ports from PostgreSQL and Redis services in Docker configuration

- Removed port mappings for PostgreSQL and Redis in the development Docker Compose file to enhance security and avoid potential conflicts.

docker-compose.dev.minimal.yml

@@ -9,8 +9,6 @@ services:
       POSTGRES_USER: portfolio_user
       POSTGRES_PASSWORD: portfolio_dev_pass
       POSTGRES_HOST_AUTH_METHOD: trust
-    ports:
-      - "5432:5432"
     volumes:
       - postgres_dev_data:/var/lib/postgresql/data
       - ./scripts/init-db.sql:/docker-entrypoint-initdb.d/init-db.sql
@@ -27,8 +25,6 @@ services:
     image: redis:7-alpine
     platform: linux/arm64
     container_name: portfolio_redis_dev
-    ports:
-      - "6379:6379"
     volumes:
       - redis_dev_data:/data
     networks: