Fix flaky mcp_server tests with Python 3.14.3 (#169385)

homeassistant/components/mcp_server/manifest.json

@@ -3,7 +3,7 @@
   "name": "Model Context Protocol Server",
   "codeowners": ["@allenporter"],
   "config_flow": true,
-  "dependencies": ["homeassistant", "http", "conversation"],
+  "dependencies": ["http", "conversation"],
   "documentation": "https://www.home-assistant.io/integrations/mcp_server",
   "integration_type": "service",
   "iot_class": "local_push",

tests/components/mcp_server/conftest.py

@@ -9,10 +9,17 @@ from homeassistant.components.mcp_server.const import DOMAIN
 from homeassistant.const import CONF_LLM_HASS_API
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import llm
+from homeassistant.setup import async_setup_component
 
 from tests.common import MockConfigEntry
 
 
+@pytest.fixture(autouse=True)
+async def ensure_homeassistant_loaded(hass: HomeAssistant) -> None:
+    """Ensure homeassistant component is loaded."""
+    assert await async_setup_component(hass, "homeassistant", {})
+
+
 @pytest.fixture
 def mock_setup_entry() -> Generator[AsyncMock]:
     """Override async_setup_entry."""