- New k8s_pod_spec form sections (image credentials, node selector,
gpu vendor overrides) under k8s_options, replacing the legacy flat
k8s_volume_mounts list. UI keys aligned to the backend wire shape
(snake_case k8s_options + camelCase inside).
- System default container registry is pre-filled into the first image
credential when creating a new cluster; empty username/password are
coerced to null on submit to match the Optional[str] backend schema.
- Register cluster flow supports multi-runtime selection gated by the
cluster's gpuVendorOverrides: non-override vendors stay single-select
with an inline hint; multi-add only opens once an override vendor is
picked, and non-override cards become disabled in that state.
- Manifest URL emits multiple ?runtime= params; check-env step combines
per-vendor commands; downstream steps are disabled when no vendor is
selected.
- Pre-validate gpuVendorOverrides at save time (non-empty selector, no
duplicates across vendors, no key clash with base nodeSelector) so
the user sees the error before hitting the manifest endpoint.
- Misc: dark-mode background of the k8s_pod_spec / volume mount titles
no longer clashes with the drawer; cluster Steps no longer leaks the
internal showModules/showForms props to the DOM.
