upstream_api_key was added to SECRET_FIELDS, so it was stripped from every
blob write — but unlike nsec, nothing migrates it into encrypted storage. A
node carrying it only in the DB blob would load it into memory once, rewrite
the blob without it, and lose it on the next restart, breaking upstream auth.
It is node-scoped config that really belongs on a provider, not a vault
secret, and it has no encrypted home yet. Remove it from SECRET_FIELDS so it
stays in the blob exactly as before; redaction on read and ignore-on-write in
the admin settings endpoint are unchanged. Encrypting it is follow-up work.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Persist and load admin password and nsec from the encrypted Secret store on
boot: generate a temporary admin password on first run (logged once), encrypt
a provided nsec, and fail fast if a stored nsec cannot be decrypted with the
current key. Stop clobbering live secret settings with empty env values.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>