feat: Add knowledge base file management functionality

- Implemented `useKnowledgeFiles` hook for managing knowledge base files
- Added localization support for knowledge base file management in multiple languages
- Created UI option to remove all knowledge base files in DataSettings
- Updated file size formatting utility function
- Modified ContentView and FilesPage to use file size correctly

src/renderer/src/hooks/useKnowledgeFiles.tsx

@@ -0,0 +1,43 @@
+import FileManager from '@renderer/services/FileManager'
+import { FileType } from '@renderer/types'
+import { isEmpty } from 'lodash'
+import { useEffect, useState } from 'react'
+
+import { useKnowledgeBases } from './useKnowledge'
+
+export const useKnowledgeFiles = () => {
+  const [knowledgeFiles, setKnowledgeFiles] = useState<FileType[]>([])
+  const { bases, updateKnowledgeBases } = useKnowledgeBases()
+
+  useEffect(() => {
+    const items = bases.map((kb) => kb.items).flat()
+    const fileItems = items.filter((item) => item.type === 'file')
+    const files = fileItems.map((item) => item.content as FileType)
+    !isEmpty(files) && setKnowledgeFiles(files)
+  }, [bases])
+
+  const removeAllFiles = async () => {
+    console.debug('removeAllFiles', knowledgeFiles)
+    await FileManager.deleteFiles(knowledgeFiles)
+
+    const newBases = bases.map((kb) => ({
+      ...kb,
+      items: kb.items.map((item) =>
+        item.type === 'file'
+          ? {
+              ...item,
+              content: {
+                ...(item.content as FileType),
+                size: 0
+              }
+            }
+          : item
+      )
+    }))
+    updateKnowledgeBases(newBases)
+  }
+
+  const size = knowledgeFiles.reduce((acc, file) => acc + file.size, 0)
+
+  return { knowledgeFiles, size, removeAllFiles }
+}

src/renderer/src/i18n/locales/en-us.json

@@ -595,6 +595,10 @@
       "data": {
         "app_data": "App Data",
         "app_logs": "App Logs",
+        "app_knowledge": "Knowledge Base Files",
+        "app_knowledge.remove_all": "Remove Files",
+        "app_knowledge.remove_all_confirm": "Removing knowledge base files will not delete the knowledge base itself, which will reduce the storage space occupied. Continue?",
+        "app_knowledge.remove_all_success": "Files removed successfully",
         "clear_cache": {
           "button": "Clear Cache",
           "confirm": "Clearing the cache will delete application cache data, including minapp data. This action is irreversible, continue?",

src/renderer/src/i18n/locales/ja-jp.json

@@ -595,6 +595,10 @@
       "data": {
         "app_data": "アプリデータ",
         "app_logs": "アプリログ",
+        "app_knowledge": "ナレッジベースファイル",
+        "app_knowledge.remove_all": "ファイルを削除",
+        "app_knowledge.remove_all_confirm": "ナレッジベースファイルを削除してもナレッジベース自体は削除されません。これにより、ストレージ容量を節約できます。続行しますか？",
+        "app_knowledge.remove_all_success": "ファイル削除成功",
         "clear_cache": {
           "button": "キャッシュをクリア",
           "confirm": "キャッシュをクリアすると、アプリのキャッシュデータ（ミニアプリデータを含む）が削除されます。この操作は元に戻せません。続行しますか？",

src/renderer/src/i18n/locales/ru-ru.json

@@ -595,6 +595,10 @@
       "data": {
         "app_data": "Данные приложения",
         "app_logs": "Логи приложения",
+        "app_knowledge": "База знаний",
+        "app_knowledge.remove_all": "Удалить файлы",
+        "app_knowledge.remove_all_confirm": "Удаление файлов базы знаний не удалит саму базу знаний, что позволит уменьшить занимаемый объем памяти, продолжить?",
+        "app_knowledge.remove_all_success": "Файлы удалены успешно",
         "clear_cache": {
           "button": "Очистка кэша",
           "confirm": "Очистка кэша удалит данные приложения. Это действие необратимо, продолжить?",

src/renderer/src/i18n/locales/zh-cn.json

@@ -595,6 +595,10 @@
       "data": {
         "app_data": "应用数据",
         "app_logs": "应用日志",
+        "app_knowledge": "知识库文件",
+        "app_knowledge.remove_all": "删除文件",
+        "app_knowledge.remove_all_confirm": "删除知识库文件不会删除知识库本身，可以减少存储空间占用，删除之后文件无法再打开，是否继续？",
+        "app_knowledge.remove_all_success": "文件删除成功",
         "clear_cache": {
           "button": "清除缓存",
           "confirm": "清除缓存将删除应用缓存的数据，包括小程序数据。此操作不可恢复，是否继续？",

src/renderer/src/i18n/locales/zh-tw.json

@@ -595,6 +595,10 @@
       "data": {
         "app_data": "應用數據",
         "app_logs": "應用日誌",
+        "app_knowledge": "知識庫文件",
+        "app_knowledge.remove_all": "刪除文件",
+        "app_knowledge.remove_all_confirm": "刪除知識庫文件不會刪除知識庫本身，可以減少存儲空間占用，刪除之後文件無法再打開，是否繼續？",
+        "app_knowledge.remove_all_success": "文件刪除成功",
         "clear_cache": {
           "button": "清除緩存",
           "confirm": "清除緩存將刪除應用緩存數據，包括小程序數據。此操作不可恢復，是否繼續？",

src/renderer/src/pages/files/ContentView.tsx

@@ -35,7 +35,7 @@ const ContentView: React.FC<ContentViewProps> = ({ id, files, dataSource, column
                   }}
                 />
                 <ImageInfo>
-                  <div>{formatFileSize(file)}</div>
+                  <div>{formatFileSize(file.size)}</div>
                 </ImageInfo>
               </ImageWrapper>
             </Col>

src/renderer/src/pages/files/FilesPage.tsx

@@ -111,7 +111,7 @@ const FilesPage: FC = () => {
           {file.origin_name}
         </FileNameText>
       ),
-      size: formatFileSize(file),
+      size: formatFileSize(file.size),
       size_bytes: file.size,
       count: file.count,
       created_at: dayjs(file.created_at).format('MM-DD HH:mm'),

src/renderer/src/pages/settings/DataSettings/DataSettings.tsx

@@ -5,6 +5,7 @@ import MinApp from '@renderer/components/MinApp'
 import BackupPopup from '@renderer/components/Popups/BackupPopup'
 import RestorePopup from '@renderer/components/Popups/RestorePopup'
 import { useTheme } from '@renderer/context/ThemeProvider'
+import { useKnowledgeFiles } from '@renderer/hooks/useKnowledgeFiles'
 import { reset } from '@renderer/services/BackupService'
 import { RootState, useAppDispatch } from '@renderer/store'
 import {
@@ -18,6 +19,7 @@ import {
   setYuqueUrl
 } from '@renderer/store/settings'
 import { AppInfo } from '@renderer/types'
+import { formatFileSize } from '@renderer/utils'
 import { Button, InputNumber, Modal, Switch, Tooltip, Typography } from 'antd'
 import Input from 'antd/es/input/Input'
 import { FC, useEffect, useState } from 'react'
@@ -298,6 +300,7 @@ const YuqueSettings: FC = () => {
 const DataSettings: FC = () => {
   const { t } = useTranslation()
   const [appInfo, setAppInfo] = useState<AppInfo>()
+  const { size, removeAllFiles } = useKnowledgeFiles()
   const { theme } = useTheme()
 
   useEffect(() => {
@@ -334,6 +337,22 @@ const DataSettings: FC = () => {
     })
   }
 
+  const handleRemoveAllFiles = () => {
+    Modal.confirm({
+      centered: true,
+      title: t('settings.data.app_knowledge.remove_all') + ` (${formatFileSize(size)}) `,
+      content: t('settings.data.app_knowledge.remove_all_confirm'),
+      onOk: async () => {
+        await removeAllFiles()
+        window.message.success(t('settings.data.app_knowledge.remove_all_success'))
+      },
+      okText: t('common.delete'),
+      okButtonProps: {
+        danger: true
+      }
+    })
+  }
+
   return (
     <SettingContainer theme={theme}>
       <SettingGroup theme={theme}>
@@ -384,6 +403,15 @@ const DataSettings: FC = () => {
           </HStack>
         </SettingRow>
         <SettingDivider />
+        <SettingRow>
+          <SettingRowTitle>{t('settings.data.app_knowledge')}</SettingRowTitle>
+          <HStack alignItems="center" gap="5px">
+            <Button onClick={handleRemoveAllFiles} danger>
+              {t('settings.data.app_knowledge.remove_all')}
+            </Button>
+          </HStack>
+        </SettingRow>
+        <SettingDivider />
         <SettingRow>
           <SettingRowTitle>{t('settings.data.clear_cache.title')}</SettingRowTitle>
           <HStack gap="5px">

src/renderer/src/utils/index.ts

@@ -1,4 +1,4 @@
-import { FileType, Model } from '@renderer/types'
+import { Model } from '@renderer/types'
 import { ModalFuncProps } from 'antd/es/modal/interface'
 import imageCompression from 'browser-image-compression'
 import html2canvas from 'html2canvas'
@@ -394,9 +394,7 @@ export function hasPath(url: string): boolean {
   }
 }
 
-export function formatFileSize(file: FileType) {
+export function formatFileSize(size: number) {
-  const size = file.size
-
   if (size > 1024 * 1024) {
     return (size / 1024 / 1024).toFixed(1) + ' MB'
   }