Replaces the minimal CI workflow with a complete build/release pipeline:
- lint, typecheck, test (parallel, every push/PR)
- build: TS + completions + bun binaries + RPM packaging
- docker: build & push all 4 images (mcpd, node-runner, python-runner, docmost-mcp)
- publish-rpm: upload RPM to Gitea packages
- deploy: update Portainer stack
Also adds scripts/link-package.sh shared helper to auto-link packages
to the repository (Gitea 1.24+ API with graceful fallback), called from
all build/publish scripts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>