Root cause of DIGEST_INVALID errors was registry disk exhaustion.
Project teardown wasn't cleaning up container images, causing the
registry PVC to fill up over time.
Changes:
- Add RegistryProvider port interface for registry operations
- Extend zot.Client with DeleteProjectRepositories method
- Wire registry provider into ProjectInfraService
- Delete images during DeleteProject cleanup (step 4)
The zot client uses the OCI distribution API:
- Lists all repos, filters by project prefix
- Gets manifest digests via HEAD request
- Deletes manifests by digest to trigger GC
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
