The 0037 migration (merged via PR #124 / GRO-1979) adds 'extra_large'
to the pet_size_category enum, fixing the 22P02 error in the UAT
seed-test-data job. Mirror the regression test added for coat_type
in TC-API-3.27: TC-API-3.28 explicitly verifies pet_size_category
contains all 4 values used by seed.ts after
the seed job completes, so future enum drift on either dimension
surfaces at the UAT gate.
Refs: GRO-1999, GRO-1971 (precedent), PR #124 (the code fix).
Co-Authored-By: Paperclip <noreply@paperclip.ing>