refactor(icons): 迁移 components 目录图标到 lucide-react

- @chakra-ui/icons → lucide-react
- react-icons → lucide-react
- 涉及 49 个组件文件

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/ChatBot/ChatInterface.js

@@ -21,8 +21,7 @@ import {
   MenuItem,
   Button,
 } from '@chakra-ui/react';
-import { FiSend, FiRefreshCw, FiSettings, FiDownload } from 'react-icons/fi';
-import { ChevronDownIcon } from '@chakra-ui/icons';
+import { Send, RefreshCw, Settings, Download } from 'lucide-react';
 import MessageBubble from './MessageBubble';
 import { mcpService } from '../../services/mcpService';
 import { logger } from '../../utils/logger';
@@ -252,14 +251,14 @@ export const ChatInterface = () => {
         </HStack>
         <HStack>
           <IconButton
-            icon={<FiRefreshCw />}
+            icon={<RefreshCw />}
             size="sm"
             variant="ghost"
             aria-label="清空对话"
             onClick={handleClearChat}
           />
           <IconButton
-            icon={<FiDownload />}
+            icon={<Download />}
             size="sm"
             variant="ghost"
             aria-label="导出对话"
@@ -268,7 +267,7 @@ export const ChatInterface = () => {
           <Menu>
             <MenuButton
               as={IconButton}
-              icon={<FiSettings />}
+              icon={<Settings />}
               size="sm"
               variant="ghost"
               aria-label="设置"
@@ -360,7 +359,7 @@ export const ChatInterface = () => {
             disabled={isLoading}
           />
           <IconButton
-            icon={<FiSend />}
+            icon={<Send />}
             colorScheme="blue"
             aria-label="发送"
             onClick={handleSendMessage}