Feat: Add wencai operator #3221 (#9116)

### What problem does this PR solve?

Feat: Add wencai operator #3221

### Type of change


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

web/src/pages/agent/hooks/use-agent-tool-initial-values.ts

@@ -52,6 +52,8 @@ export function useAgentToolInitialValues() {
           return pick(initialValues, 'top_n', 'email');
         case Operator.GitHub:
           return pick(initialValues, 'top_n');
+        case Operator.WenCai:
+          return pick(initialValues, 'top_n', 'query_type');
 
         default:
           return initialValues;