Fix: prioritize protected_label in agents/list API to prevent proxy overwrite bug on devices and view-as dropdown

backend/routes/dashboard/agents.js

@@ -214,11 +214,17 @@ router.get('/agents/list', async (req, res) => {
     
     const agents = await db.collection('agent_registry')
       .find(filter)
-      .project({ uuid: 1, label: 1, _id: 0 })
+      .project({ uuid: 1, label: 1, protected_label: 1, _id: 0 })
       .sort({ uuid: 1 })
       .toArray();
-    
-    res.json({ ok: true, data: agents });
+      
+    // Use protected_label if available to prevent proxy overwrite bug
+    const mappedAgents = agents.map(a => ({
+      uuid: a.uuid,
+      label: a.protected_label || a.label || a.uuid
+    }));
+      
+    res.json({ ok: true, data: mappedAgents });
   } catch (err) {
     res.status(500).json({ ok: false, error: err.message });
   }