Update knowldge base layout

web/pages/KnowledgeBase.tsx

@@ -1,5 +1,5 @@
 import React, { useEffect, useState, useRef } from 'react';
-import { Search, Plus, FileText, Upload, ArrowLeft, CloudUpload, File as FileIcon, X, Pencil, Trash2, Settings2, MoreVertical } from 'lucide-react';
+import { Search, Plus, FileText, Upload, ArrowLeft, CloudUpload, File as FileIcon, X, Pencil, Trash2, Settings2, MoreHorizontal } from 'lucide-react';
 import { Button, Input, TableHeader, TableRow, TableHead, TableCell, Card, Dialog, Badge } from '../components/UI';
 import { KnowledgeBase } from '../types';
 import { createKnowledgeBase, deleteKnowledgeBase, deleteKnowledgeDocument, fetchKnowledgeBases, fetchLLMModels, updateKnowledgeBase, uploadKnowledgeDocument } from '../services/backendApi';
@@ -20,6 +20,7 @@ export const KnowledgeBasePage: React.FC = () => {
   const [editingKb, setEditingKb] = useState<KnowledgeBase | null>(null);
   const [isLoading, setIsLoading] = useState(true);
   const [embeddingOptions, setEmbeddingOptions] = useState<string[]>(EMBEDDING_OPTIONS);
+  const [hasDbEmbeddingModels, setHasDbEmbeddingModels] = useState(false);
   const [openMenuKbId, setOpenMenuKbId] = useState<string | null>(null);
 
   const [kbName, setKbName] = useState('');
@@ -53,16 +54,20 @@ export const KnowledgeBasePage: React.FC = () => {
     const loadEmbeddingModels = async () => {
       try {
         const models = await fetchLLMModels();
-        const fromDb = models
+        const fromDb = Array.from(new Set(models
           .filter((m) => m.type === 'embedding')
           .map((m) => (m.modelName || m.name || '').trim())
-          .filter(Boolean);
-        const merged = Array.from(new Set([...fromDb, ...EMBEDDING_OPTIONS]));
-        if (merged.length > 0) {
-          setEmbeddingOptions(merged);
-        }
+          .filter(Boolean)));
+
+        setHasDbEmbeddingModels(fromDb.length > 0);
+
+        // Prefer DB embedding models first; keep defaults as fallback at the end.
+        const defaultsTail = EMBEDDING_OPTIONS.filter((item) => !fromDb.includes(item));
+        const ordered = [...fromDb, ...defaultsTail];
+        setEmbeddingOptions(ordered.length > 0 ? ordered : EMBEDDING_OPTIONS);
       } catch {
         setEmbeddingOptions(EMBEDDING_OPTIONS);
+        setHasDbEmbeddingModels(false);
       }
     };
     loadEmbeddingModels();
@@ -231,7 +236,7 @@ export const KnowledgeBasePage: React.FC = () => {
           <Card
             key={kb.id}
             className="p-6 hover:border-primary/50 transition-colors cursor-pointer group relative"
-            onClick={() => openEditKb(kb)}
+            onClick={() => handleSelect(kb)}
           >
             <div className="absolute top-3 right-3 z-20">
               <Button
@@ -243,22 +248,13 @@ export const KnowledgeBasePage: React.FC = () => {
                   setOpenMenuKbId((prev) => (prev === kb.id ? null : kb.id));
                 }}
               >
-                <MoreVertical className="h-4 w-4" />
+                <MoreHorizontal className="h-4 w-4" />
               </Button>
               {openMenuKbId === kb.id && (
                 <div
                   className="absolute right-0 mt-1 w-36 rounded-md border border-white/10 bg-card/95 backdrop-blur-md shadow-lg overflow-hidden"
                   onClick={(e) => e.stopPropagation()}
                 >
-                  <button
-                    className="w-full text-left px-3 py-2 text-sm hover:bg-white/10 text-foreground"
-                    onClick={() => {
-                      setOpenMenuKbId(null);
-                      handleSelect(kb);
-                    }}
-                  >
-                    管理文档
-                  </button>
                   <button
                     className="w-full text-left px-3 py-2 text-sm hover:bg-white/10 text-destructive"
                     onClick={() => {
@@ -275,9 +271,11 @@ export const KnowledgeBasePage: React.FC = () => {
               <div className="p-2 bg-primary/10 rounded-lg text-primary">
                 <FileText className="h-6 w-6" />
               </div>
-              <Badge variant="outline">{kb.embeddingModel || 'embedding'}</Badge>
             </div>
             <h3 className="text-lg font-semibold group-hover:text-primary transition-colors text-white">{kb.name}</h3>
+            <div className="mt-2">
+              <Badge variant="outline">{kb.embeddingModel || 'embedding'}</Badge>
+            </div>
             <div className="mt-4 space-y-1 text-sm text-muted-foreground">
               <p>文档数量: {kb.documents.length}</p>
               <p>分片数量: {kb.chunkSize ?? 500}/{kb.chunkOverlap ?? 50}</p>
@@ -319,6 +317,7 @@ export const KnowledgeBasePage: React.FC = () => {
         kbChunkOverlap={kbChunkOverlap}
         setKbChunkOverlap={setKbChunkOverlap}
         embeddingOptions={embeddingOptions}
+        hasDbEmbeddingModels={hasDbEmbeddingModels}
       />
     </div>
   );
@@ -341,6 +340,7 @@ const KnowledgeBaseModal: React.FC<{
   kbChunkOverlap: number;
   setKbChunkOverlap: (v: number) => void;
   embeddingOptions: string[];
+  hasDbEmbeddingModels: boolean;
 }> = ({
   isOpen,
   onClose,
@@ -358,6 +358,7 @@ const KnowledgeBaseModal: React.FC<{
   kbChunkOverlap,
   setKbChunkOverlap,
   embeddingOptions,
+  hasDbEmbeddingModels,
 }) => (
   <Dialog
     isOpen={isOpen}
@@ -415,6 +416,12 @@ const KnowledgeBaseModal: React.FC<{
         </div>
       </div>
 
+      {!hasDbEmbeddingModels && (
+        <p className="text-xs text-yellow-400/90">
+          未在 LLM Library 检测到 `embedding` 类型模型，当前使用默认 embedding 选项。
+        </p>
+      )}
+
       <p className="text-xs text-muted-foreground">
         使用 ChromaDB 作为向量存储。若知识库已有已索引分片，不能直接变更 Embedding Model，需要先删除文档后重建。
       </p>