The async-facing-trait + sync-bridge posture (blocking impl on dedicated
threads/spawn_blocking feeding tokio channels, documented as a supported
strategy not a workaround) is already family-standard twice over: alktty
REQ-TTY-01 and alkblobs' spawn_blocking-in-engine-impls execution
posture. Recorded verbatim-sourced in OQ-ST-03; reframes the honker-rs
sync→async port as bridge-at-the-trait-seam vs native-async-rewrite and
weakens sqlx's main differentiator on the sqlite side. alktty added to
references.