Fix: Clustering method echo error (#15322)

### What problem does this PR solve?

Fix: Clustering method echo error

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/interfaces/database/dataset.ts

@@ -74,6 +74,7 @@ interface Parserconfig {
 
 interface Raptor {
   clustering_method?: 'gmm' | 'ahc';
+  ext?: { clustering_method: 'gmm' | 'ahc'; tree_builder: 'raptor' | 'psi' };
   max_cluster: number;
   max_token: number;
   prompt: string;

web/src/pages/dataset/dataset-setting/hooks.ts

@@ -47,6 +47,8 @@ export const useFetchKnowledgeConfigurationOnMount = (
       raptor: {
         ...form.formState?.defaultValues?.parser_config?.raptor,
         ...knowledgeDetails.parser_config?.raptor,
+        clustering_method:
+          knowledgeDetails.parser_config?.raptor?.ext?.clustering_method,
         use_raptor: true,
       },
       graphrag: {