fix: slogan

ui/src/locales/lang/en-US/theme.ts

@@ -1,6 +1,6 @@
 export default {
   title: 'Appearance Settings',
-  defaultSlogan: 'A powerful and easy-to-use enterprise-level AI assistant',
+  defaultSlogan: 'An open-source platform forbuilding enterprise-grade agents',
   platformDisplayTheme: 'Platform Display Theme',
   customTheme: 'Custom Theme',
   platformLoginSettings: 'Platform Login Settings',
@@ -40,5 +40,4 @@ export default {
   saveAndApply: 'Save and Apply',
   fileMessageError: 'File size exceeds 10MB',
   saveSuccess: 'Appearance settings successfully applied',
-
 }

ui/src/locales/lang/zh-CN/theme.ts

@@ -1,6 +1,6 @@
 export default {
   title: '外观设置',
-  defaultSlogan: '强大易用的企业级 AI 助手',
+  defaultSlogan: '强大易用的企业级智能体平台',
   platformDisplayTheme: '平台显示主题',
   customTheme: '自定义主题',
   platformLoginSettings: '平台登录设置',

ui/src/locales/lang/zh-Hant/theme.ts

@@ -1,6 +1,6 @@
 export default {
   title: '外觀設置',
-  defaultSlogan: '強大易用的企業級 AI 助手',
+  defaultSlogan: '強大易用的企業級智能體平台',
   platformDisplayTheme: '平台顯示主題',
   customTheme: '自定義主題',
   platformLoginSettings: '平台登錄設置',