feat(backup): support table filters and MySQL compatibility

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

@@ -2291,6 +2291,7 @@ export interface DatabaseExportRequest {
   schema: string;
   filePath: string;
   selectedTables?: string[];
+  excludedTables?: string[];
   includeStructure: boolean;
   includeData: boolean;
   includeObjects: boolean;