SD-175

Watchdog first assignment: systematic testing bias survey. Watchdog dispatched to conduct a systematic survey of the testing suite (1,054 tests) for systematic bias — presence, absence, or other patterns. Investigated as an island test: could you verify from the suite alone that the system works? Verdict: YELLOW — gaps but fundamentally sound. Key findings: (1) bout-engine.ts (1,221 lines, core execution) has zero direct tests. (2) Entire DB layer mocked in 99% of tests — SQL correctness unverified. (3) 38 React components have zero rendering tests. (4) Known production race condition documented but untested (concurrent reactions). (5) No property-based, fuzz, or mutation testing. (6) Credit economy SQL safety net (GREATEST(0,…)) never exercised in tests. Strengths: crypto pipeline is genuinely adversarial, Stripe webhook handler thoroughly tested at mock level, tier gating covers complete matrix, tests are legitimate (not theater). Full report held in session.