feat(ui): add remote mode indicator to provider editor header

Shows "Remote" badge with Globe icon and "Traffic auto-routed to
remote server" message when remote CLIProxy mode is active.

ui/src/components/cliproxy/provider-editor/provider-editor-header.tsx

@@ -5,7 +5,7 @@
 
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
-import { Save, Loader2, RefreshCw } from 'lucide-react';
+import { Save, Loader2, RefreshCw, Globe } from 'lucide-react';
 import { ProviderLogo } from '../provider-logo';
 import type { SettingsResponse } from './types';
 
@@ -43,16 +43,31 @@ export function ProviderEditorHeader({
         <div>
           <div className="flex items-center gap-2">
             <h2 className="text-lg font-semibold">{displayName}</h2>
+            {isRemoteMode && (
+              <Badge
+                variant="secondary"
+                className="text-xs gap-1 bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-400"
+              >
+                <Globe className="w-3 h-3" />
+                Remote
+              </Badge>
+            )}
             {!isRemoteMode && data?.path && (
               <Badge variant="outline" className="text-xs">
                 {data.path.replace(/^.*[\\/]/, '')}
               </Badge>
             )}
           </div>
-          {!isRemoteMode && data && (
-            <p className="text-xs text-muted-foreground mt-0.5">
-              Last modified: {new Date(data.mtime).toLocaleString()}
+          {isRemoteMode ? (
+            <p className="text-xs text-blue-600 dark:text-blue-400 mt-0.5">
+              Traffic auto-routed to remote server
             </p>
+          ) : (
+            data && (
+              <p className="text-xs text-muted-foreground mt-0.5">
+                Last modified: {new Date(data.mtime).toLocaleString()}
+              </p>
+            )
           )}
         </div>
       </div>