Renders the identity selection screen where the user chooses how to identify themselves for the session: Virtual Key, User ID, or Skip (session-only auth).
The __bifrost_flow_secret HttpOnly cookie set during /api/oauth/per-user/authorize
must be present — it binds the consent flow to the initiating browser.
The Skip option is only shown when enforce_auth_on_inference is false in config.
Bearer token authentication. Use your provider API key or Bifrost authentication token.
Virtual keys (prefixed with sk-bf-) can also be passed here.
Pending flow ID from the authorize redirect
Error message to display (used on redirect-back from failed form submissions)
Identity selection HTML page
The response is of type string.