Testing specs can set image-pull-policy: IfNotPresent so kind-loaded
local images are used instead of pulling from the registry. Production
specs omit the key and get the default Always behavior.
Root cause: with Always, k8s pulled the GHCR kubo image (with baked
R2 endpoint) instead of the locally-built image (with https://s3:443),
causing kubo to connect to R2 directly and get Unauthorized.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>