Deleted all merged branches that had their PRs closed/merged:
- 14 claude/issue-* branches (PRs #52-65)
- 6 other merged feature branches (PRs #24-32)
Leaves only main + 2 open PR branches untouched.
Note: default_delete_branch_after_merge could not be enabled via API
(403 Forbidden - insufficient permissions). Repo admin can enable this
manually in repo settings.
Fixes#66
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>