593aa74c61
The salvaged #101266 gated its rebuild on current_version < 27; main had already reached SCHEMA_VERSION 28 (column-reconciliation bumps), so on any existing install the gate would never fire and cron rows would stay in the trigram index forever. The cherry-pick resolution renumbers to v29; this test seeds a v28 database and asserts the migration runs. Mutation-checked against the original < 27 gate.