Generate navigation, navigation search (#18096)

### Summary
2 API

POST /api/v1/datasets/{dataset_id}/navigation

GET
/api/v1/datasets/{dataset_id}/navigation/search?q={query}&mode={mode}&top_k={topk}


2 cli

uv run --no-sync python3 admin/client/ragflow_cli.py -h 127.0.0.1 -p
9380 -t user

ragflow> GENERATE NAVIGATION OF DATASET 'frames tree';

ragflow> NAVIGATION SEARCH 'Christie introduced blockchain-based digital
passports' IN DATASET 'frames tree' MODE 'all' topk 20;

(mode: chunk, nav_cluster, nav_doc, navigation_tree, all)

web/src/interfaces/database/dataset-nav.ts

@@ -3,8 +3,11 @@ export interface DatasetNavNode {
   description: string;
   doc_count: number;
   type: string;
-  doc_id?: string; // only returned by the children endpoint
+  doc_id?: string;
   has_children: boolean;
+  keywords?: string[];
+  entities?: string[];
+  graph_content?: string;
 }
 
 export interface DatasetNavList {

web/src/locales/en.ts

@@ -2399,6 +2399,10 @@ Example: Virtual Hosted Style`,
       loading: 'Loading...',
       selectNode: 'Select a child node to view details',
       noDescription: 'No description',
+      description: 'Description',
+      keywords: 'Keywords',
+      entities: 'Entities',
+      graphContent: 'Full Graph Content',
       docCount: '{{count}} documents',
       deleteAllTitle: 'Delete navigation tree',
       deleteAllDescription:

web/src/locales/zh.ts

@@ -2045,6 +2045,10 @@ NER：使用 spaCy NER 和基于规则的关键词提取来抽取实体和关系
       loading: '加载中...',
       selectNode: '选择子节点以查看详情',
       noDescription: '暂无描述',
+      description: '描述',
+      keywords: '关键词',
+      entities: '实体',
+      graphContent: '完整图谱内容',
       docCount: '{{count}} 个文档',
       deleteAllTitle: '删除目录树',
       deleteAllDescription: '确定要删除整个目录树吗？此操作无法撤销。',

web/src/pages/dataset/compilation/hooks/use-compilation-nav.ts

@@ -12,6 +12,9 @@ export interface SelectedNavNode {
   name: string;
   description: string;
   doc_count: number;
+  keywords?: string[];
+  entities?: string[];
+  graph_content?: string;
 }
 
 export function useCompilationNav() {
@@ -95,6 +98,9 @@ export function useCompilationNav() {
         name: node.name,
         description: node.description,
         doc_count: node.doc_count,
+        keywords: node.keywords,
+        entities: node.entities,
+        graph_content: node.graph_content,
       });
     },
     [],

web/src/pages/dataset/compilation/nav-tree-view.tsx

@@ -52,8 +52,59 @@ export function NavTreeView() {
                   {t('datasetNav.docCount', { count: selectedNode.doc_count })}
                 </span>
               </header>
-              <div className="flex-1 min-h-0 overflow-y-auto px-4 py-3 text-sm text-text-primary whitespace-pre-wrap">
-                {selectedNode.description || t('datasetNav.noDescription')}
+              <div className="flex-1 min-h-0 overflow-y-auto px-4 py-3 text-sm text-text-primary space-y-4">
+                <div>
+                  <h4 className="text-xs font-medium text-text-secondary mb-1">
+                    {t('datasetNav.description')}
+                  </h4>
+                  <p className="whitespace-pre-wrap">
+                    {selectedNode.description || t('datasetNav.noDescription')}
+                  </p>
+                </div>
+                {selectedNode.keywords && selectedNode.keywords.length > 0 && (
+                  <div>
+                    <h4 className="text-xs font-medium text-text-secondary mb-1">
+                      {t('datasetNav.keywords')}
+                    </h4>
+                    <div className="flex flex-wrap gap-1">
+                      {selectedNode.keywords.map((kw, i) => (
+                        <span
+                          key={i}
+                          className="inline-block px-2 py-0.5 rounded text-xs bg-fill-quaternary text-text-secondary"
+                        >
+                          {kw}
+                        </span>
+                      ))}
+                    </div>
+                  </div>
+                )}
+                {selectedNode.entities && selectedNode.entities.length > 0 && (
+                  <div>
+                    <h4 className="text-xs font-medium text-text-secondary mb-1">
+                      {t('datasetNav.entities')}
+                    </h4>
+                    <div className="flex flex-wrap gap-1">
+                      {selectedNode.entities.map((entity, i) => (
+                        <span
+                          key={i}
+                          className="inline-block px-2 py-0.5 rounded text-xs bg-fill-quaternary text-text-secondary"
+                        >
+                          {entity}
+                        </span>
+                      ))}
+                    </div>
+                  </div>
+                )}
+                {selectedNode.graph_content && (
+                  <div>
+                    <h4 className="text-xs font-medium text-text-secondary mb-1">
+                      {t('datasetNav.graphContent')}
+                    </h4>
+                    <p className="whitespace-pre-wrap text-xs text-text-secondary">
+                      {selectedNode.graph_content}
+                    </p>
+                  </div>
+                )}
               </div>
             </section>
           ) : (