Feat:new component list operations (#11276)

### What problem does this PR solve?
issue:
https://github.com/infiniflow/ragflow/issues/10427
change:
new component list operations

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/constants/agent.tsx

@@ -109,6 +109,7 @@ export enum Operator {
   SearXNG = 'SearXNG',
   Placeholder = 'Placeholder',
   DataOperations = 'DataOperations',
+  ListOperations = 'ListOperations',
   VariableAssigner = 'VariableAssigner',
   VariableAggregator = 'VariableAggregator',
   File = 'File', // pipeline