pub async fn reset_runtime_backend(pool: &PgPool)Expand description
Initialise the active storage engine to the one selected by the
AWA_TEST_ENGINE env var: canonical (default) or queue_storage. awa’s
caller-facing contract is engine-invariant, so running the same suite under
both values exercises both backends. Tests that pin a specific engine call
reset_to_canonical / activate_queue_storage directly.