fix: harden group lifecycle and registration writes

server/db/mysql/tenant_adapter.go

@@ -2725,6 +2725,9 @@ func (a *adapter) TenantCallList(id t.TenantID, uid t.Uid, topic, cursor string,
 	if cancel != nil {
 		defer cancel()
 	}
+	if err := a.finalizeStaleCalls(ctx); err != nil {
+		return nil, "", err
+	}
 	rows, err := a.db.QueryxContext(ctx,
 		`SELECT id,call_id,topic,seq_id,caller_id,callee_id,call_type,status,end_reason,duration_ms,
 		        started_at,accepted_at,finished_at,created_at,updated_at
@@ -2786,6 +2789,23 @@ func (a *adapter) TenantCallList(id t.TenantID, uid t.Uid, topic, cursor string,
 	return records, nextCursor, nil
 }
 
+func (a *adapter) finalizeStaleCalls(ctx context.Context) error {
+	now := t.TimeNow()
+	startedBefore := now.Add(-2 * time.Minute)
+	acceptedBefore := now.Add(-12 * time.Hour)
+	if _, err := a.db.ExecContext(ctx, `UPDATE im_call_records
+		SET status=?,end_reason=?,duration_ms=0,finished_at=?,updated_at=?
+		WHERE status=? AND started_at<? AND finished_at IS NULL`,
+		t.CallStatusMissed, t.CallStatusMissed, now, now, t.CallStatusStarted, startedBefore); err != nil {
+		return err
+	}
+	_, err := a.db.ExecContext(ctx, `UPDATE im_call_records
+		SET status=?,end_reason=?,duration_ms=GREATEST(TIMESTAMPDIFF(MICROSECOND,accepted_at,?) DIV 1000,0),finished_at=?,updated_at=?
+		WHERE status=? AND accepted_at IS NOT NULL AND accepted_at<? AND finished_at IS NULL`,
+		t.CallStatusDisconnected, t.CallStatusDisconnected, now, now, now, t.CallStatusAccepted, acceptedBefore)
+	return err
+}
+
 func (a *adapter) TenantWorkbenchModules(id t.TenantID, uid t.Uid) ([]t.WorkbenchModule, int, error) {
 	if !a.tenantScopedDB {
 		tenantAdp, err := a.routedTenantAdapter(id)