feat(i18n): add internationalization support across multiple components

src/pages/knowledge/components/FloatingActionButtons.tsx

@@ -6,6 +6,7 @@ import {
   Settings as ConfigIcon,
 
 } from '@mui/icons-material';
+import { useTranslation } from 'react-i18next';
 
 interface FloatingActionButtonsProps {
   onTestClick: () => void;
@@ -16,22 +17,24 @@ const FloatingActionButtons: React.FC<FloatingActionButtonsProps> = ({
   onTestClick,
   onConfigClick,
 }) => {
+  const { t } = useTranslation();
+  
   const actions = [
     { 
       icon: <TestIcon />, 
-      name: '检索测试', 
+      name: t('knowledge.retrievalTest'), 
       onClick: onTestClick,
     },
     { 
       icon: <ConfigIcon />, 
-      name: '配置设置', 
+      name: t('knowledge.configSettings'), 
       onClick: onConfigClick,
     },
   ];
 
   return (
     <SpeedDial
-      ariaLabel="知识库操作"
+      ariaLabel={t('knowledge.knowledgeBaseActions')}
       sx={{ 
         position: 'fixed', 
         bottom: 128,