-- pg_turbovec 2.7.3 -> 2.7.4
-- Documentation-accuracy and benchmark-harness release; binary byte-identical
-- to 2.7.3. Corrects the v2.7.3 latency figures to disclose that they were
-- contention-flagged, publishes the IVF+BQ measurements, and namespaces the
-- bench harness's shared state (--run-id).
-- No wire change (v8), no SQL surface change, no REINDEX.
-- Intentionally empty but MUST exist so ALTER EXTENSION ... UPDATE succeeds.