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/dirty.go

@@ -55,6 +55,7 @@ func (s *DoltStore) ClearDirtyIssuesByID(ctx context.Context, issueIDs []string)
 		args[i] = id
 	}
 
+	// nolint:gosec // G201: placeholders contains only ? markers, actual values passed via args
 	query := fmt.Sprintf("DELETE FROM dirty_issues WHERE issue_id IN (%s)", strings.Join(placeholders, ","))
 	_, err := s.db.ExecContext(ctx, query, args...)
 	if err != nil {