feat: add manual context assignment and fix actuator discovery

tests/api/test_actuators.py

@@ -179,14 +179,39 @@ def test_actuator_api_configures_reconciles_and_removes(tmp_path: Path) -> None:
         assert client.get("/v1/actuators").json() == []
 
 
-def test_manual_override_endpoint_is_not_exposed(tmp_path: Path) -> None:
+def test_manual_assignment_endpoint_updates_context(tmp_path: Path) -> None:
     with TestClient(app) as client:
         _install_service(tmp_path)
         client.post("/v1/actuators", json={"actuator_entity_id": "light.abstellkammer"})
 
         response = client.post(
-            "/v1/actuators/light.abstellkammer/override",
-            json={"numeric_entity_id": "sensor.abstellkammer_illuminance"},
+            "/v1/actuators/light.abstellkammer/assignment",
+            json={
+                "numeric_entity_id": "sensor.abstellkammer_illuminance",
+                "context_entity_ids": ["binary_sensor.abstellkammer_motion"],
+                "note": "Manuell gesetzt",
+            },
         )
 
-    assert response.status_code == 404
+    assert response.status_code == 200
+    payload = response.json()
+    assert payload["assignment"]["source"] == "manual"
+    assert payload["assignment"]["selected_numeric_entity_id"] == (
+        "sensor.abstellkammer_illuminance"
+    )
+    assert payload["assignment"]["selected_context_entity_ids"] == [
+        "binary_sensor.abstellkammer_motion"
+    ]
+
+
+def test_context_options_returns_learnable_entities(tmp_path: Path) -> None:
+    with TestClient(app) as client:
+        _install_service(tmp_path)
+
+        response = client.get("/v1/actuators/context-options")
+
+    assert response.status_code == 200
+    entity_ids = {item["entity_id"] for item in response.json()}
+    assert "sensor.abstellkammer_illuminance" in entity_ids
+    assert "binary_sensor.abstellkammer_motion" in entity_ids
+    assert "light.abstellkammer" in entity_ids