Fix 4 Forgejo ghost PR bugs flagged by Ganymede:
- fixer.py GC close: DB update ran outside try/except, closing DB even on Forgejo failure
- substantive_fixer.py droppable: NO Forgejo close at all
- substantive_fixer.py auto-enrichment: DB update before Forgejo (reversed order)
- substantive_fixer.py close_and_reextract: replace manual Forgejo+DB with close_pr()
Add start_fixing() and reset_for_reeval() to pr_state.py:
- start_fixing: atomic claim + fix_attempts increment in one statement
- reset_for_reeval: clears all eval state for re-evaluation after fix
Also fixes stale line number comment in merge.py (Ganymede nit).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Gate 3 in batch-extract-50.sh: query pipeline.db for closed PRs before
re-extracting. Sources with >=3 closed PRs are skipped (zombie protection).
Cost tracking: openrouter_call() now returns (text, usage) tuple with
prompt_tokens and completion_tokens from the OpenRouter API response.
All callers updated to unpack and pass tokens to costs.record_usage().
Added missing triage cost recording. Fixed batch domain review recording
cost once per batch instead of once per PR.
Pentagon-Agent: Epimetheus <0144398e-4ed3-4fe2-95a3-3d72e1abf887>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>