Block merges to main from non-release branches

[Splatcrafter]

Summary

This PR introduces a new workflow to prevent accidental merges to the main branch from non-release branches, enhancing branch safety and ensuring proper release protocols are followed.

Type of Change

• Bug fix
• New feature
• Breaking change
• Refactoring
• Documentation
• Build / CI

Related Issues

This PR does not have any related issues

Changes

• Added a GitHub Actions workflow that rejects PRs targeting main from non-compliant branches.

Verification

• Unit tests added/updated
• Existing tests pass
• Manual verification performed (if applicable)

Breaking Changes

None.

Checklist

• Code follows project conventions
• Public APIs are documented
• Tests cover new behavior
• No unnecessary dependencies added

[github-actions]

⚠️ Deprecation Warning: The deny-licenses option is deprecated for possible removal in the next major release. For more information, see issue 997.

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None