The Remote Credentials card (per-agent secret picker, plus the GitHub
credential checkbox) is rendered for any remote executor — Sprites,
local_docker, or remote_docker — but the save path in both the create
and edit pages only emitted `remote_auth_secrets` and `remote_credentials`
when `isSprites` was true. Selecting a secret for the Claude / Codex /
Auggie ANTHROPIC_API_KEY-style entry on a Docker profile updated form
state, the dropdown showed it as picked, but Save Changes silently
dropped the value before posting to the API. On reload the agent showed
as "Not configured", and any session start failed with
`{"code":-32000,"message":"Authentication required"}`.
Switch the guards to `isRemote` so the same data persists for all remote
profile types. The backend orchestrator already propagates
`profile.config.remote_auth_secrets` and `remote_credentials` through to
metadata for any containerized executor and resolves them via
`applyContainerCredentials` → `resolveAuthSecrets`, so no backend change
is needed once the values actually land in the saved profile.
Two bugs:
1. The Dockerfile editor and Image Tag input on the executor profile page
stored their values in component-local useState inside DockerSections,
not in the form state. Saving the profile never wrote them back, so
"Use defaults" / typing in the editor / changing the tag never
persisted — and the Build button was the only thing that consumed
them. The same gap existed in the new-executor flow's
buildProfileConfig.
Lift `dockerfile` and `image_tag` into useProfileFormState (edit) and
useCreateProfileFormState (new), and emit them in buildSaveConfig /
buildProfileConfig so they round-trip through profile.config.
2. Even when an image_tag is set on the profile, the container builder
ignored it. imageName was always derived from the agent runtime's
hardcoded `kandev/multi-agent`, so a user who built a custom image
like `kandev/agent:latest` would still see Docker fail with
"No such image: kandev/multi-agent:latest".
Propagate `profile.config.image_tag` → metadata
(`image_tag_override`) → ExecutorCreateRequest → ContainerConfig,
and let it override `rt.Image` in buildContainerConfig when set.
Also align the frontend default image tag (kandev/multi-agent:latest)
with the backend's hardcoded runtime default so users who don't override
end up with a working build.