feat: Add Directus setup scripts for collections, fields, and relations

- Created setup-directus-collections.js to automate the creation of tech stack collections, fields, and relations in Directus.
- Created setup-directus-hobbies.js for setting up hobbies collection with translations.
- Created setup-directus-projects.js for establishing projects collection with comprehensive fields and translations.
- Added setup-tech-stack-directus.js to populate tech_stack_items with predefined data.

docker-compose.yml

@@ -47,6 +47,8 @@ services:
     image: postgres:16-alpine
     container_name: portfolio-postgres
     restart: unless-stopped
+    ports:
+      - "5432:5432"  # Expose für lokale Development
     environment:
       - POSTGRES_DB=portfolio_db
       - POSTGRES_USER=portfolio_user