Fixing PR Comments

Fetch all unresolved PR threads, triage, fix blockers, resolve the rest.

Workflow

1. DETECT  → PR number/repo from current branch
2. FETCH   → Unresolved review threads (GraphQL)
3. TRIAGE  → Classify each: FIX / RESOLVE / CLARIFY
4. PRESENT → Show triage table, proceed immediately
5. FIX     → Implement → verify → commit → reply → resolve (one commit per fix)
6. PUSH    → Push all commits
7. RESPOND → Reply to RESOLVE (+ resolve) and CLARIFY threads

Detect & Fetch