fix(model): prefer live models for user providers

tests/hermes_cli/test_user_providers_model_switch.py

@@ -131,6 +131,55 @@ def test_list_authenticated_providers_enumerates_dict_format_models(monkeypatch)
     ]
 
 
+def test_list_authenticated_providers_uses_live_models_for_user_provider(monkeypatch):
+    """User-defined OpenAI-compatible providers should prefer live /models.
+
+    Regression: CRS-style providers with a stale config ``models:`` dict kept
+    showing only the configured subset in the /model picker, even though their
+    /v1/models endpoint exposed newly added models.
+    """
+    monkeypatch.setattr("agent.models_dev.fetch_models_dev", lambda: {})
+    monkeypatch.setattr("hermes_cli.providers.HERMES_OVERLAYS", {})
+    monkeypatch.setenv("CRS_TEST_KEY", "sk-test")
+
+    calls = []
+
+    def fake_fetch_api_models(api_key, base_url):
+        calls.append((api_key, base_url))
+        return ["old-configured-model", "new-live-model"]
+
+    monkeypatch.setattr("hermes_cli.models.fetch_api_models", fake_fetch_api_models)
+
+    user_providers = {
+        "crs-henkee": {
+            "name": "CRS Henkee",
+            "base_url": "http://127.0.0.1:3000/api/v1",
+            "key_env": "CRS_TEST_KEY",
+            "model": "old-configured-model",
+            "models": {
+                "old-configured-model": {"context_length": 200000},
+            },
+        }
+    }
+
+    providers = list_authenticated_providers(
+        current_provider="crs-henkee",
+        user_providers=user_providers,
+        custom_providers=[],
+        max_models=50,
+    )
+
+    user_prov = next(
+        (p for p in providers if p.get("is_user_defined") and p["slug"] == "crs-henkee"),
+        None,
+    )
+
+    assert user_prov is not None
+    assert calls == [("sk-test", "http://127.0.0.1:3000/api/v1")]
+    assert user_prov["models"] == ["old-configured-model", "new-live-model"]
+    assert user_prov["total_models"] == 2
+
+
 def test_list_authenticated_providers_dict_models_without_default_model(monkeypatch):
     """Dict-format ``models:`` without a ``default_model`` must still expose
     every dict key, not collapse to an empty list."""