Function run_to_completion 

pub async fn run_to_completion(
    link: Link,
    database: &Database,
    host: &dyn ClientHost,
) -> Result<Outcome>

Runs one interactive drain, waiting briefly for another sync to finish. This is the user-started recheck of a recorded vault deletion: it ignores the record and clears it on success. Automatic callers must not sync while StatusReport::vault_deleted_at is set.