pub async fn check_callback_state(
pool: &PgPool,
job_id: i64,
callback_id: Uuid,
) -> Result<CallbackPollResult, AwaError>Expand description
Check the current state of a job during callback wait.
Handles the early-resume race: if resume_external won the race before
the handler transitioned to waiting_external, the callback result is
already in metadata and this returns Resolved.