many fixes

internal/store/accounts.go

@@ -79,6 +79,15 @@ func (s *Store) SetAccountStatus(ctx context.Context, id int64, status string) e
 	return err
 }
 
+// ResetAccountCounters zeroes the per-account copied/skipped/error counts at the
+// start of a run so a re-run reflects only the current run's totals instead of
+// accumulating on top of the previous run (IncAccountCounters is additive).
+func (s *Store) ResetAccountCounters(ctx context.Context, id int64) error {
+	_, err := s.Pool.Exec(ctx,
+		`UPDATE accounts SET copied_count=0, skipped_count=0, error_count=0 WHERE id=$1`, id)
+	return err
+}
+
 func (s *Store) IncAccountCounters(ctx context.Context, id, copied, skipped, errs int64) error {
 	_, err := s.Pool.Exec(ctx,
 		`UPDATE accounts SET copied_count=copied_count+$2,