feat(Localization): Add toggle error message for MCP servers across languages

- Update en-us, ja-jp, ru-ru, zh-cn, and zh-tw locale files
- Add 'toggleError' translation key for MCP server settings
- Improve error handling and user feedback for server toggle actions

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

@@ -806,7 +806,8 @@
         "title": "MCP Servers",
         "type": "Type",
         "updateSuccess": "Server updated successfully",
-        "url": "URL"
+        "url": "URL",
+        "toggleError": "Toggle failed"
       },
       "messages.divider": "Show divider between messages",
       "messages.grid_columns": "Message grid display columns",

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

@@ -806,7 +806,8 @@
         "title": "MCP サーバー",
         "type": "タイプ",
         "updateSuccess": "サーバーが正常に更新されました",
-        "url": "URL"
+        "url": "URL",
+        "toggleError": "切り替えに失敗しました"
       },
       "messages.divider": "メッセージ間に区切り線を表示",
       "messages.grid_columns": "メッセージグリッドの表示列数",

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

@@ -806,7 +806,8 @@
         "title": "Серверы MCP",
         "type": "Тип",
         "updateSuccess": "Сервер успешно обновлен",
-        "url": "URL"
+        "url": "URL",
+        "toggleError": "Переключение не удалось"
       },
       "messages.divider": "Показывать разделитель между сообщениями",
       "messages.grid_columns": "Количество столбцов сетки сообщений",

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

@@ -806,7 +806,8 @@
         "title": "MCP 服务器",
         "type": "类型",
         "updateSuccess": "服务器更新成功",
-        "url": "URL"
+        "url": "URL",
+        "toggleError": "切换失败"
       },
       "messages.divider": "消息分割线",
       "messages.grid_columns": "消息网格展示列数",

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

@@ -806,7 +806,8 @@
         "title": "MCP 伺服器",
         "type": "類型",
         "updateSuccess": "伺服器更新成功",
-        "url": "URL"
+        "url": "URL",
+        "toggleError": "切換失敗"
       },
       "messages.divider": "訊息間顯示分隔線",
       "messages.grid_columns": "訊息網格展示列數",

src/renderer/src/pages/settings/MCPSettings.tsx

@@ -1,7 +1,6 @@
 import { DeleteOutlined, EditOutlined, PlusOutlined, QuestionCircleOutlined } from '@ant-design/icons'
 import { useTheme } from '@renderer/context/ThemeProvider'
-import { useAppDispatch, useAppSelector } from '@renderer/store'
-import { addMCPServer, deleteMCPServer, setMCPServerActive, updateMCPServer } from '@renderer/store/mcp'
+import { useAppSelector } from '@renderer/store'
 import { MCPServer } from '@renderer/types'
 import { Button, Card, Form, Input, Modal, Radio, Space, Switch, Table, Tag, Tooltip, Typography } from 'antd'
 import TextArea from 'antd/es/input/TextArea'
@@ -25,7 +24,6 @@ const MCPSettings: FC = () => {
   const { t } = useTranslation()
   const { theme } = useTheme()
   const { Paragraph, Text } = Typography
-  const dispatch = useAppDispatch()
   const mcpServers = useAppSelector((state) => state.mcp.servers)
 
   const [isModalVisible, setIsModalVisible] = useState(false)
@@ -78,11 +76,10 @@ const MCPSettings: FC = () => {
     form.resetFields()
   }
 
-  const handleSubmit = () => {
+  const handleSubmit = async () => {
     setLoading(true)
-    form
-      .validateFields()
-      .then((values) => {
+    try {
+      const values = await form.validateFields()
       const mcpServer: MCPServer = {
         name: values.name,
         description: values.description,
@@ -110,19 +107,16 @@ const MCPSettings: FC = () => {
       }
 
       if (editingServer) {
-          window.api.mcp
-            .updateServer(mcpServer)
-            .then(() => {
+        try {
+          await window.api.mcp.updateServer(mcpServer)
           window.message.success(t('settings.mcp.updateSuccess'))
           setLoading(false)
           setIsModalVisible(false)
           form.resetFields()
-            })
-            .catch((error) => {
+        } catch (error: any) {
           window.message.error(`${t('settings.mcp.updateError')}: ${error.message}`)
           setLoading(false)
-            })
-          dispatch(updateMCPServer(mcpServer))
+        }
       } else {
         // Check for duplicate name
         if (mcpServers.some((server: MCPServer) => server.name === mcpServer.name)) {
@@ -131,24 +125,20 @@ const MCPSettings: FC = () => {
           return
         }
 
-          window.api.mcp
-            .addServer(mcpServer)
-            .then(() => {
-              dispatch(addMCPServer(mcpServer))
+        try {
+          await window.api.mcp.addServer(mcpServer)
           window.message.success(t('settings.mcp.addSuccess'))
           setLoading(false)
           setIsModalVisible(false)
           form.resetFields()
-            })
-            .catch((error) => {
+        } catch (error: any) {
           window.message.error(`${t('settings.mcp.addError')}: ${error.message}`)
           setLoading(false)
-            })
         }
-      })
-      .catch(() => {
+      }
+    } catch (error: any) {
       setLoading(false)
-      })
+    }
   }
 
   const handleDelete = (serverName: string) => {
@@ -159,30 +149,23 @@ const MCPSettings: FC = () => {
       okButtonProps: { danger: true },
       cancelText: t('common.cancel'),
       centered: true,
-      onOk: () => {
-        window.api.mcp
-          .deleteServer(serverName)
-          .then(() => {
+      onOk: async () => {
+        try {
+          await window.api.mcp.deleteServer(serverName)
           window.message.success(t('settings.mcp.deleteSuccess'))
-          })
-          .catch((error) => {
+        } catch (error: any) {
           window.message.error(`${t('settings.mcp.deleteError')}: ${error.message}`)
-          })
-        dispatch(deleteMCPServer(serverName))
+        }
       }
     })
   }
 
   const handleToggleActive = (name: string, isActive: boolean) => {
-    window.api.mcp
-      .setServerActive(name, isActive)
-      .then(() => {
-        // Optional: Show success message or update UI
-      })
-      .catch((error) => {
+    try {
+      window.api.mcp.setServerActive(name, isActive)
+    } catch (error: any) {
       window.message.error(`${t('settings.mcp.toggleError')}: ${error.message}`)
-      })
-    dispatch(setMCPServerActive({ name, isActive }))
+    }
   }
 
   const columns = [