Lint Roller review on PR #152 flagged that the GRO-2100 seed change produces
new observable UAT API behavior that the playbook must reflect. Add two
deterministic rows pinning the contract GRO-1987 TC-UAT-2/3 will exercise:
- TC-UAT-2: uat-groomer + linked pet c0000001-...-002 (UAT Pup Alpha) → 200
- TC-UAT-3: uat-groomer + unlinked pet c0000001-...-003 (UAT Pup Beta) → 403
The 403-vs-404 note in TC-UAT-3 mirrors the verification note in the
GRO-2100 issue body so the QA runner knows where to file if the API
returns 404 (a separate RBAC defect, not against the seed).