v5.0

v5.0 Coverage Expansion

Delivered: Comprehensive test infrastructure with 2,900+ tests covering backend and frontend code

Key accomplishments:
- Coverage baseline established with business impact scoring (Phase 100)
- Backend test infrastructure: 845+ API integration, property-based, and error path tests (Phases 101-104)
- Frontend test infrastructure: 1,071+ component, state management, and property tests with React Testing Library and FastCheck (Phases 105-108)
- Form validation coverage: 372 tests with 91.3% coverage (Phase 109)
- Quality gates operational: PR coverage comments, 80% coverage gate enforcement, trend dashboard, per-commit reports (Phase 110)
- Frontend coverage: 3.45% → 89.84% (exceeds 80% target)

See .planning/mILESTONES.md for full details.