fix(lint): add nolint comments for gosec G201/G104 in dolt storage

The SQL formatting warnings (G201) are safe because:
- Placeholders only contain "?" markers for parameterized queries
- WHERE/SET clauses use validated column names with ? placeholders
- Refs are validated by validateRef() before use in AS OF queries
- LIMIT values are safe integers from filter.Limit

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/storage/dolt/labels.go

@@ -64,6 +64,7 @@ func (s *DoltStore) GetLabelsForIssues(ctx context.Context, issueIDs []string) (
 		args[i] = id
 	}
 
+	// nolint:gosec // G201: placeholders contains only ? markers, actual values passed via args
 	query := fmt.Sprintf(`
 		SELECT issue_id, label FROM labels
 		WHERE issue_id IN (%s)