feat: implement platform-specific provider visibility for cursor agent

server/routes/settings.js

@@ -273,4 +273,14 @@ router.post('/push/unsubscribe', async (req, res) => {
   }
 });
 
+// Host OS for UI (e.g. hide Cursor agent when the backend runs on Windows).
+router.get('/server-env', async (req, res) => {
+  try {
+    res.json({ platform: process.platform });
+  } catch (error) {
+    console.error('Error reading server environment:', error);
+    res.status(500).json({ error: 'Failed to read server environment' });
+  }
+});
+
 export default router;