fix: Improve knowledge base processing and deletion handling

src/renderer/src/hooks/useKnowledge.ts

@@ -199,10 +199,14 @@ export const useKnowledge = (baseId: string) => {
   }
 
   // 获取目录处理进度
-  const getDirectoryProcessingPercent = (itemId: string) => {
+  const getDirectoryProcessingPercent = (itemId?: string) => {
     const [percent, setPercent] = useState<number>(0)
 
     useEffect(() => {
+      if (!itemId) {
+        return
+      }
+
       const cleanup = window.electron.ipcRenderer.on(itemId, (_, progressingPercent: number) => {
         setPercent(progressingPercent)
       })

src/renderer/src/pages/knowledge/KnowledgeContent.tsx

@@ -64,6 +64,7 @@ const KnowledgeContent: FC<KnowledgeContentProps> = ({ selectedBase }) => {
   if (!base) {
     return null
   }
+
   const progressingPercent = getDirectoryProcessingPercent(base?.id)
 
   const handleAddFile = () => {

src/renderer/src/pages/knowledge/KnowledgePage.tsx

@@ -65,6 +65,7 @@ const KnowledgePage: FC = () => {
               title: t('knowledge.delete_confirm'),
               centered: true,
               onOk: () => {
+                setSelectedBase(undefined)
                 deleteKnowledgeBase(base.id)
               }
             })