Hide hosted dashboard update controls

tests/hermes_cli/test_dashboard_admin_endpoints.py

@@ -772,6 +772,25 @@ class TestUpdateCheckEndpoint:
         assert body["message"]
         assert body["behind"] is None
 
+    def test_hosted_dashboard_is_not_applyable(self, monkeypatch):
+        import hermes_cli.web_server as ws
+
+        monkeypatch.setattr(ws, "_dashboard_hosted_agent_mode", lambda: True)
+        monkeypatch.setattr(
+            ws,
+            "detect_install_method",
+            lambda *a, **k: pytest.fail(
+                "hosted update check should not probe install method"
+            ),
+        )
+
+        body = self.client.get("/api/hermes/update/check").json()
+        assert body["install_method"] == "hosted"
+        assert body["can_apply"] is False
+        assert body["update_available"] is False
+        assert body["behind"] is None
+        assert "hosted agent service" in body["message"]
+
     def test_check_failure_is_soft(self, monkeypatch):
         import hermes_cli.web_server as ws
         import hermes_cli.banner as banner