fix(model-switch): mark bare custom provider as current

hermes_cli/model_switch.py

@@ -1720,7 +1720,10 @@ def list_authenticated_providers(
             results.append({
                 "slug": slug,
                 "name": grp["name"],
-                "is_current": slug == current_provider,
+                "is_current": slug == current_provider or (
+                    bool(current_base_url)
+                    and _grp_url_norm == current_base_url.strip().rstrip("/").lower()
+                ),
                 "is_user_defined": True,
                 "models": grp["models"],
                 "total_models": len(grp["models"]),

tests/hermes_cli/test_model_switch_custom_providers.py

@@ -343,6 +343,7 @@ def test_list_authenticated_providers_bare_custom_slug_recovers(monkeypatch):
     group = matches[0]
     # Canonical slug, NOT the bare "custom" that caused #17478
     assert group["slug"] == "custom:ollama"
+    assert group["is_current"] is True
 
 
 def test_list_authenticated_providers_distinct_endpoints_stay_separate(monkeypatch):