test(cli): isolate model picker Ollama probes

Fixes #30604

tests/hermes_cli/test_list_picker_providers.py

@@ -19,6 +19,12 @@ import pytest
 from hermes_cli import model_switch
 
 
+@pytest.fixture(autouse=True)
+def _disable_live_custom_provider_model_probe(monkeypatch):
+    """Keep custom-provider picker fixtures independent of local model servers."""
+    monkeypatch.setattr("hermes_cli.models.fetch_api_models", lambda *_a, **_kw: None)
+
+
 def _make_provider(slug, name=None, models=None, *, is_current=False,
                    is_user_defined=False, source="built-in", api_url=None):
     """Build a dict shaped like ``list_authenticated_providers`` output."""

tests/hermes_cli/test_model_switch_custom_providers.py

@@ -6,6 +6,7 @@ only looked at `providers:`.
 """
 
 import hermes_cli.providers as providers_mod
+import pytest
 from hermes_cli.model_switch import list_authenticated_providers, switch_model
 from hermes_cli.providers import resolve_provider_full
 
@@ -18,6 +19,12 @@ _MOCK_VALIDATION = {
 }
 
 
+@pytest.fixture(autouse=True)
+def _disable_live_custom_provider_model_probe(monkeypatch):
+    """Keep custom-provider picker fixtures independent of local model servers."""
+    monkeypatch.setattr("hermes_cli.models.fetch_api_models", lambda *_a, **_kw: None)
+
+
 def test_list_authenticated_providers_includes_custom_providers(monkeypatch):
     """No-args /model menus should include saved custom_providers entries."""
     monkeypatch.setattr("agent.models_dev.fetch_models_dev", lambda: {})