generic-bugfix overview

Root-cause-first bugfix template with Phase 0 git-diff analysis. Enforces deep diagnosis before implementation and verifies edge cases beyond the reported case. Replaces all ad-hoc bugfix processes that vary in diagnostic depth. Structure: 6 phases Phase 1: Diagnostic (5-question checklist, requires 2+ independent evidence signals) Phase 2: Breakpoint — human reviews diagnosis before fix begins Phase 3: Implement fix (references diagnosis output) Phase 4: TypeScript check (hard shell gate — non-zero exit fails the run) Phase 5: Verify fix + edge cases (structured matrix: reported + boundary cases) Phase 6: Breakpoint — human reviews outcome