Modernize GitHub release contributors layout

[nirooxx]

This PR modernizes the GitHub release contributor output.

The release notes now use GitHub-native @mentions in the commit list instead of rendering contributors with a custom HTML table. This makes the release page look cleaner, more consistent, and closer to GitHub’s native release notes style.

[nirooxx]

@copilot resolve the merge conflicts in this pull request

[Copilot]

Pull request overview

This PR updates the release/changelog generation pipeline to produce GitHub-native release notes by embedding @mentions directly in the commit list, removing the previous custom contributor HTML layout. It also refactors the release creation code and tightens several workflow scripts used by the Docker-based GitHub Action.

Changes:

• Generate commit lists with GitHub-native @mentions (and adjust changelog content accordingly), removing the contributors table output.
• Refactor createRelease to require env vars explicitly and improve error handling; update Jest tests/mocks accordingly.
• Improve git ref syncing and PR creation error handling; update Jest config, TS config, and dependencies.

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tsconfig.json	Expands TS include set to cover Jest config (but currently has a duplicate entry).
src/release.ts	Refactors env handling and errors; keeps CLI behavior via a top-level catch/exit.
src/__tests__/release.test.ts	Rewrites tests to use a dedicated @actions/github mock module and validate output writing.
src/__tests__/mocks/actions-github.ts	Adds a lightweight in-repo mock for @actions/github used by Jest.
scripts/collect-commits.sh	Replaces contributor HTML generation with commit lines that include @mentions.
scripts/update-changelog.sh	Updates changelog content generation to match the new “What’s Changed” commit-only format.
scripts/setup-release.sh	Refreshes branches/tags via prune fetches to avoid stale refs during releases.
scripts/entrypoint.sh	Masks GITHUB_TOKEN in logs and changes how token presence is reported.
scripts/create-pr.sh	Improves PR creation error handling by checking HTTP status and response content.
jest.config.mjs	Adds module mapping for ESM + @actions/github mock; excludes tests from coverage collection.
.gitattributes	Normalizes line endings (LF) for shell scripts and enables text auto-detection.
package-lock.json	Updates dependency lockfile to reflect dependency graph changes.

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[Copilot]

@copilot resolve the merge conflicts in this pull request

Merge conflicts resolved in commit 6a93429. The conflicts were in scripts/collect-commits.sh (kept the modernized @mentions implementation) and package-lock.json (accepted updated dependency versions from main). All tests pass.