- Add lint to build job's needs so lint failures prevent artifacts
- Combine race detector + coverage into a single test run
- Pin golangci-lint to v2.1.6 to avoid surprise breakage
- Rename workflow from go-improved.yml to go.yml
golangci-lint v2 removed the --out-format CLI flag, causing the lint
job to fail. The golangci-lint-action v7 already uses problem matchers
to surface issues natively in GitHub Actions.
Re-enable the golangci-lint job in CI (disabled Oct 2025), update to
Go 1.25 and golangci-lint-action v7. Fix errcheck, gosimple S1009,
staticcheck SA4031 and SA2001 errors across 54 files. Remaining ~39
lint errors will be addressed in follow-up commits.
Multi-stage Dockerfile for smaller runtime image, CD workflow triggers
on main branch pushes and version tags, docker-compose defaults to the
prebuilt GHCR image.
