Enhance workflows: commit lint, PR title lint, and optional checks

[akrem-chabchoub]

Summary

Align beekeeper CI with ethersphere/bee by adding commit message linting, PR title linting, and optionally other quality checks. This keeps conventions consistent across swarm repos and catches bad commits/PR titles before merge.

Current state

• go.yml: build, lint (golangci-lint), vet, test on PR; matrix for ubuntu/macos/windows.
• release.yaml: goreleaser on tag push.

No commit or PR title checks today.

Proposed additions

1. Commit lint (on PR)

• Lint all commits in a PR against Conventional Commits (e.g. feat:, fix:, chore:, etc.).
• Reference: bee uses wagoid/commitlint-github-action@v5.
• Add commitlint.config.js at repo root (can mirror or adapt bee’s config, e.g. header max length 98 to match your convention).

2. PR title lint

• Ensure PR title follows the same convention as commits (so merge commit message is valid).
• Reference: bee’s pr-title.yml runs on pull_request (opened, synchronize, reopened, edited), uses @commitlint/cli + @commitlint/config-conventional and pipes github.event.pull_request.title through commitlint.
• Add a dedicated workflow (e.g. .github/workflows/pr-title.yml) or a job in an existing workflow that runs this check.

3. Optional (nice-to-have)

• Paths / branches: like bee, optionally restrict when go workflow runs (e.g. paths-ignore, or only certain branches) to save CI time.
• Whitespace / tidy: bee runs make check-whitespace and katexochen/go-tidy-check; add if we want to enforce go mod tidy and whitespace.

References

• bee workflows
• bee go.yml
• bee pr-title.yml
• bee commitlint.config.js