fix: 修复前端编译错误（移除未使用的导入和参数）

frontend/src/components/notifications/DiscordConfigForm.tsx

@@ -8,7 +8,7 @@ interface DiscordConfigFormProps {
 /**
  * Discord 配置表单组件
  */
-const DiscordConfigForm: React.FC<DiscordConfigFormProps> = ({ form }) => {
+const DiscordConfigForm: React.FC<DiscordConfigFormProps> = ({ form: _form }) => {
   const { t } = useTranslation()
   
   return (

frontend/src/components/notifications/SlackConfigForm.tsx

@@ -8,7 +8,7 @@ interface SlackConfigFormProps {
 /**
  * Slack 配置表单组件
  */
-const SlackConfigForm: React.FC<SlackConfigFormProps> = ({ form }) => {
+const SlackConfigForm: React.FC<SlackConfigFormProps> = ({ form: _form }) => {
   const { t } = useTranslation()
   
   return (

frontend/src/components/notifications/TelegramConfigForm.tsx

@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { Form, Input, Alert, Button, Space, message } from 'antd'
+import { Form, Input, Alert, Button, message } from 'antd'
 import { ReloadOutlined } from '@ant-design/icons'
 import { useTranslation } from 'react-i18next'
 import { apiService } from '../../services/api'