v0.3.0 - batch issue scan
Adds batch triage.
- openpatch scan owner/repo --top N ranks a repo's open issues by startability (open + unassigned + no competing PR + not stale rank highest). text / json / md output.
- Pull requests are filtered out of the issue list.
- 22 offline tests; CI green on Python 3.10-3.12.
Facts from the GitHub API; ranking is rule-driven; model-derived fields stay honestly unavailable without an LLM key.