Function governance_audit 

pub fn governance_audit(
    conn: &Connection,
    q: &GovernanceAuditQuery,
) -> Result<Vec<GovernanceEventRow>>

Execute a governance audit query (DW-084): return the raw ai_governance_events rows in a time window, newest first. Reads the RAW rows directly — governance events are per-check, not rolled up (the volume is orders of magnitude below the access record path).