Add SQLite dashboard cache

tests/api/test_actuators.py

@@ -6,6 +6,7 @@ from pathlib import Path
 
 from fastapi.testclient import TestClient
 
+from app.actuators.cache_db import DashboardCache
 from app.actuators.lifecycle import ActuatorReconciliationService
 from app.actuators.models import JobStatus, ModelSnapshot
 from app.actuators.store import ActuatorStore
@@ -146,6 +147,7 @@ def _install_service(tmp_path: Path) -> None:
     )
     app.state.registry = ModelRegistry(tmp_path / "models")
     app.state.actuator_store = ActuatorStore(tmp_path / "actuators")
+    app.state.dashboard_cache = DashboardCache(tmp_path / "actuators" / "dashboard_cache.sqlite3")
     app.state.ha_reader = FakeHaReader(
         entities,
         {"sensor.abstellkammer_illuminance": [10, 11, 12, 13, 14, 15]},