- 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
- Change Docker image in docker-compose.prod.yml to use 'portfolio-app:latest'.
- Add new scripts for Gitea deployment and setup of Gitea runner.
- Introduce CI/CD workflows for automated testing, security scanning, and deployment in Gitea.
- Enhance package.json with new deployment scripts for Gitea integration.
