fix(models): retain valid discovery IDs beside malformed rows

src/model_discovery.py

@@ -193,7 +193,10 @@ class ModelDiscovery:
             data = r.json()
             # Some OpenAI-compatible servers return a bare list, not {"data": [...]}.
             items = data if isinstance(data, list) else ((data or {}).get("data") or [])
-            ids = [m.get("id") for m in items if isinstance(m, dict) and m.get("id")]
+            ids = [
+                m["id"] for m in items
+                if isinstance(m, dict) and isinstance(m.get("id"), str) and m["id"]
+            ]
             if ids:
                 return {
                     "host": host,