Cloud's APIKeyPrefixes admits pk- and sk- only (auth_identity.go, 4b030b77).
The lsp tool still told the user to set an hk- key, which cloud resolves to no
principal — following the message produced a key that could never authenticate.
The message is now a single NO_KEY beside the resolver that mints it, exported
from hanzo_tools.core, so a second tool reporting it cannot spell it differently.
Resolution order is untouched: HANZO_API_KEY, then ~/.hanzo/config.json .apiKey,
then the CLI's IAM session.
vector_index names the split cloud actually draws: pk- publishable for read,
sk- secret for write.
Co-authored-by: Hanzo Dev <[email protected]>
