Add comprehensive release documentation for v1.0.1 GitHub Actions compatibility fix

[Copilot]

This PR adds comprehensive release documentation for version 1.0.1, which contains a critical fix for GitHub Actions compatibility that was addressed in issue #3.

📋 What's Added

CHANGELOG.md

• Created a professional changelog following Keep a Changelog format
• Documents the v1.0.1 fix with technical details and impact analysis
• Includes comprehensive v1.0.0 initial release documentation
• Provides clear upgrade instructions for users

RELEASE_NOTES_v1.0.1.md

• Ready-to-use GitHub release notes for creating the v1.0.1 release
• Detailed explanation of the git symbolic-ref error and its resolution
• Code examples showing the problematic vs. fixed implementation
• Clear impact assessment and upgrade path for users

🐛 Issue Context

The documentation covers the fix for issue #3, where the action was failing in GitHub Actions environments with:

Error: Failed to analyze repository changes: Repository validation failed: Git command failed: symbolic-ref refs/remotes/origin/HEAD

The root cause was that GitHub Actions' actions/checkout doesn't set up the symbolic reference refs/remotes/origin/HEAD, but the previous code assumed it would always exist.

🔧 Technical Details Documented

Before (problematic):

const defaultBranch = this.executeGitCommand('symbolic-ref refs/remotes/origin/HEAD')
  .replace('refs/remotes/origin/', '')
  .trim();

After (robust fix):

let defaultBranch = 'main'; // Safe fallback
try {
  const currentBranch = this.executeGitCommand('rev-parse --abbrev-ref HEAD').trim();
  if (currentBranch !== '' && currentBranch !== 'HEAD') {
    defaultBranch = currentBranch;
  }
} catch {
  core.debug('Could not determine current branch, using "main" as default');
}

🎯 Release Readiness

These files provide everything needed to create a professional GitHub release for v1.0.1 that:

• ✅ Marks v1.0.1 as the latest release (replacing v1.0.0)
• ✅ Includes detailed technical explanation of the fix
• ✅ References closed issue Bug: Git symbolic-ref error in GitHub Actions environments #3 prominently
• ✅ Provides clear user impact and upgrade information
• ✅ Maintains professional open-source project standards

The release notes can be copied directly from RELEASE_NOTES_v1.0.1.md when creating the GitHub release.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/repos/synctree/releasebot/releases
  • Triggering command: curl -s REDACTED (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[petetan]

Thanks for the excellent documentation work! 📚 The release notes and CHANGELOG format are very professional.

However, I'm closing this PR in favor of PR #7 which provides a more complete solution:

🚨 Critical Issue: PR #5 is Documentation-Only

While the documentation is excellent, this PR doesn't fix the fundamental problem that users cannot use the GitHub Action because:

Error: File not found: '/home/runner/work/_actions/synctree/releasebot/v1/dist/index.js'

✅ Why PR #7 is the Complete Solution:

What PR #5 provides:

• ✅ CHANGELOG.md (excellent format)
• ✅ RELEASE_NOTES_v1.0.1.md (detailed release notes)
• ❌ Missing critical dist/ files (action remains broken)

What PR #7 provides:

• ✅ Critical dist/ files (fixes broken GitHub Action immediately)
• ✅ CHANGELOG.md (incorporated your excellent format with attribution)
• ✅ Proper package manager consistency (pnpm-lock.yaml only)
• ✅ Complete solution for both issues

📋 Release Notes Handling:

We don't need a separate RELEASE_NOTES_v1.0.1.md file since GitHub releases can be created directly from the PR description or CHANGELOG content. The CHANGELOG.md you created has been incorporated into PR #7.

🎯 Priority:

User functionality must come first - without the dist/ files, users can't use the action at all, making even the best documentation irrelevant.

🔗 See the complete solution: PR #7 - #7

Thanks for establishing the documentation standards - we'll maintain this quality going forward! 🙏