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/pages/agent/constant/index.tsx

@@ -595,6 +595,35 @@ export const initialDataOperationsValues = {
     },
   },
 };
+export enum SortMethod {
+  Asc = 'asc',
+  Desc = 'desc',
+}
+
+export enum ListOperations {
+  TopN = 'topN',
+  Head = 'head',
+  Tail = 'tail',
+  Filter = 'filter',
+  Sort = 'sort',
+  DropDuplicates = 'drop_duplicates',
+}
+
+export const initialListOperationsValues = {
+  query: '',
+  operations: ListOperations.TopN,
+  outputs: {
+    result: {
+      type: 'Array<?>',
+    },
+    first: {
+      type: '?',
+    },
+    last: {
+      type: '?',
+    },
+  },
+};
 
 export const initialVariableAssignerValues = {};
 
@@ -673,6 +702,7 @@ export const RestrictedUpstreamMap = {
   [Operator.Tool]: [Operator.Begin],
   [Operator.Placeholder]: [Operator.Begin],
   [Operator.DataOperations]: [Operator.Begin],
+  [Operator.ListOperations]: [Operator.Begin],
   [Operator.Parser]: [Operator.Begin], // pipeline
   [Operator.Splitter]: [Operator.Begin],
   [Operator.HierarchicalMerger]: [Operator.Begin],
@@ -729,6 +759,7 @@ export const NodeMap = {
   [Operator.HierarchicalMerger]: 'splitterNode',
   [Operator.Extractor]: 'contextNode',
   [Operator.DataOperations]: 'dataOperationsNode',
+  [Operator.ListOperations]: 'listOperationsNode',
   [Operator.VariableAssigner]: 'variableAssignerNode',
   [Operator.VariableAggregator]: 'variableAggregatorNode',
 };