Enhance update error logging and fix duplicate type import

- Improve error logging in AppUpdater with more detailed error information and timestamps
- Remove duplicate MCPServer type import in Inputbar component

src/main/services/AppUpdater.ts

@@ -18,7 +18,12 @@ export default class AppUpdater {
 
     // 检测下载错误
     autoUpdater.on('error', (error) => {
-      logger.error('更新异常', error)
+      // 简单记录错误信息和时间戳
+      logger.error('更新异常', {
+        message: error.message,
+        stack: error.stack,
+        time: new Date().toISOString()
+      })
       mainWindow.webContents.send('update-error', error)
     })
 

src/renderer/src/pages/home/Inputbar/Inputbar.tsx

@@ -27,7 +27,7 @@ import WebSearchService from '@renderer/services/WebSearchService'
 import store, { useAppDispatch, useAppSelector } from '@renderer/store'
 import { sendMessage as _sendMessage } from '@renderer/store/messages'
 import { setGenerating, setSearching } from '@renderer/store/runtime'
-import { Assistant, FileType, KnowledgeBase, MCPServer, MCPServer, Message, Model, Topic } from '@renderer/types'
+import { Assistant, FileType, KnowledgeBase, MCPServer, Message, Model, Topic } from '@renderer/types'
 import { classNames, delay, getFileExtension } from '@renderer/utils'
 import { abortCompletion } from '@renderer/utils/abortController'
 import { getFilesFromDropEvent } from '@renderer/utils/input'