03-admin-plugins.spec.ts and 04-rest-api.spec.ts were cut off mid-test,
causing Playwright TypeScript parse failures and the smoke gate to show
0 jobs. Added the missing test bodies, assertions, and closing braces.
New tests added:
- PR Core Settings page loads (03)
- Peptide CPT verified via /wp-json/wp/v2/types/peptide (04)
Fixes smoke gate for all future deploys.