fix(ui): LSP 指示器图标改用 Code2 避免与 Providers 冲突

packages/ui/src/components/DiagnosticsIndicator.tsx

@@ -8,7 +8,7 @@ import { useState, useEffect, useCallback } from 'react';
 import {
   AlertCircle,
   AlertTriangle,
-  Server,
+  Code2,
   Loader2,
 } from 'lucide-react';
 import { motion, AnimatePresence } from 'framer-motion';
@@ -164,7 +164,7 @@ export function DiagnosticsIndicator({
         )}
         title={`${runningServers} Language Server${runningServers !== 1 ? 's' : ''} Running`}
       >
-        <Server size={14} />
+        <Code2 size={14} />
         {runningServers > 0 && <span className="text-xs font-medium">{runningServers}</span>}
       </Button>
     </div>
@@ -254,7 +254,7 @@ export function DiagnosticsIndicatorCompact({
         ) : hasWarnings ? (
           <AlertTriangle size={12} />
         ) : (
-          <Server size={12} />
+          <Code2 size={12} />
         )}
         {(hasErrors || hasWarnings) && (
           <span className="font-medium">