- Rewrite check-upstream.sh to parse RPi kernel version from patch file
- Add auto-update.sh for automated version bumps with patch smoke test
- Rewrite check-updates.yaml as daily auto-build with issue fallback
- Update build.yaml release body to show Talos + kernel versions from tag
- Fix overlay dirty tag: remove --dirty from SBCOVERLAY_TAG git describe
(the sed rewrite of pkg.yaml is intentional, not an accidental change)
Tag strategy: v{TALOS}-k{KERNEL}-{BUILD} (e.g. v1.12.3-k6.12.47-1)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
