{
  "feature_id": "CLUB-005",
  "agent": "security",
  "stage": "security_gate",
  "verdict": "APPROVED",
  "security_check": "security",
  "summary": "PATCH y POST requieren sesión autenticada. Merge usa transacciones con FOR UPDATE.",
  "checks": {
    "auth": "OK: PATCH /club/me y POST /club/merge requieren deps.authenticate (sesión)",
    "race_condition": "OK: merge usa FOR UPDATE + COMMIT",
    "no_overwrite": "OK: linkMemberToUser no sobreescribe userId existente"
  },
  "timestamp": "2026-08-26T20:49:35Z"
}
