Fix Gitea Actions compatibility and improve container configuration

- Update all GitHub Actions to v3 for Gitea compatibility
- Fix artifact upload/download actions (v4 -> v3)
- Remove GitHub-specific features (GITHUB_STEP_SUMMARY)
- Add complete Docker Compose configuration with PostgreSQL and Redis
- Add environment secrets support for all workflows
- Add debug workflow for secrets verification
- Add comprehensive documentation for secrets setup
- Improve container networking and health checks

docker-compose.workflow.yml

@@ -0,0 +1,81 @@
+# Docker Compose configuration for GitHub Actions workflows
+# This ensures all required services are running before deployment
+
+services:
+  portfolio:
+    image: portfolio-app:latest
+    container_name: portfolio-app
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    environment:
+      - NODE_ENV=production
+      - DATABASE_URL=postgresql://portfolio_user:portfolio_pass@postgres:5432/portfolio_db?schema=public
+      - REDIS_URL=redis://redis:6379
+      - NEXT_PUBLIC_BASE_URL=${NEXT_PUBLIC_BASE_URL}
+      - MY_EMAIL=${MY_EMAIL}
+      - MY_INFO_EMAIL=${MY_INFO_EMAIL}
+      - MY_PASSWORD=${MY_PASSWORD}
+      - MY_INFO_PASSWORD=${MY_INFO_PASSWORD}
+      - ADMIN_BASIC_AUTH=${ADMIN_BASIC_AUTH}
+    volumes:
+      - portfolio_data:/app/.next/cache
+    networks:
+      - portfolio_net
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000/api/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  postgres:
+    image: postgres:16-alpine
+    container_name: portfolio-postgres
+    restart: unless-stopped
+    environment:
+      - POSTGRES_DB=portfolio_db
+      - POSTGRES_USER=portfolio_user
+      - POSTGRES_PASSWORD=portfolio_pass
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    networks:
+      - portfolio_net
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U portfolio_user -d portfolio_db"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
+
+  redis:
+    image: redis:7-alpine
+    container_name: portfolio-redis
+    restart: unless-stopped
+    volumes:
+      - redis_data:/data
+    networks:
+      - portfolio_net
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
+
+volumes:
+  portfolio_data:
+    driver: local
+  postgres_data:
+    driver: local
+  redis_data:
+    driver: local
+
+networks:
+  portfolio_net:
+    driver: bridge