Cluster-local object store for build artifacts (CLI binaries etc.)
so Docker builds don't depend on flaky external downloads.
- Single-node Garage v1.0.1 StatefulSet (LMDB, replication=1)
- Metadata on longhorn-nvme (1Gi), data on longhorn HDD (20Gi)
- S3 API at garage.platform.svc:3900
- External ingress at s3.coreworlds.io (internal-only)
- SealedSecret for admin token and RPC secret