The Gitea tracker was silently swallowing HTTP error responses — only
network failures were caught, so 4xx/5xx from Gitea went unnoticed and
the agent logged success even when reviews weren't posted.
- Add response status checking to create_pr_review, update_issue_status,
and add_comment
- Add fallback in create_pr_review: if inline comments fail, retry as a
plain PR comment so the summary still gets posted
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
