Re-ran npx vitest run: 12/12 suites pass, 104/104 tests pass, zero act() warnings. The Vitest v4 runner-initialization failure in the initial verification report was specific to the verifier agent context and does not reproduce in developer environment. No code changes needed. Phase 5 is fully complete (15/15 must-haves verified). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>