fix(kingbase): honor connection identifier quotes in exports

apps/desktop/src/lib/backend/tauri.ts

@@ -4310,6 +4310,7 @@ export interface QueryResultExportRequest {
   exportColumnTypes?: Array<string | null | undefined>;
   numericColumnRightAlign?: boolean;
   columnComments?: Array<string | null> | null;
+  identifierQuote?: string;
 }
 
 export async function startTableExport(request: TableExportRequest, onProgress: (progress: TableExportProgress) => void): Promise<TableExportProgress> {