- add GitHub API functions to fetch latest releases and compare versions
- implement package update checking against GitHub repositories
- add upgrade and upgrade-all CLI commands with dry-run support
- include .ruff_cache in .gitignore for cleaner repository
- Replace Makefile version/release file system with metadata.yaml only
- Add Python build automation (./tools/build) with Gitea API integration
- Add GitHub release updater (./tools/update-gh) for version management
- Centralize Dockerfiles into single parameterized Dockerfile
- Remove 54+ individual package Dockerfiles and version directories
- Update Makefile to use new Python tooling
- Add GITEA_API_TOKEN validation to prevent duplicate builds
- Support both explicit version/release args and metadata.yaml reading