M5-T11: add HA discovery and state publishing wired to polling

tests/test_expose_catalog.py

@@ -108,11 +108,17 @@ def test_exposable_entity_fields():
 
 
 def test_exposable_entity_with_value_getter():
-    """ExposableEntity.value_getter stores and calls the provided callable."""
+    """ExposableEntity.value_getter stores and calls the provided callable.
+
+    value_getter now accepts a Session argument (updated in T11-rework-1).
+    """
     from app.integrations.expose import DeviceInfo, ExposableEntity
+    from sqlalchemy import create_engine
+    from sqlalchemy.orm import Session
 
     device = DeviceInfo(identifiers=("modbus", "dev1"), name="D1")
-    getter = lambda: 230.5  # noqa: E731
+    # The value_getter receives a Session; use a lambda that ignores it.
+    getter = lambda _sess: 230.5  # noqa: E731
     entity = ExposableEntity(
         key="modbus.dev1.voltage",
         component="sensor",
@@ -123,7 +129,9 @@ def test_exposable_entity_with_value_getter():
         value_getter=getter,
     )
     assert entity.value_getter is not None
-    assert entity.value_getter() == 230.5
+    eng = create_engine("sqlite:///:memory:")
+    with Session(eng) as session:
+        assert entity.value_getter(session) == 230.5
 
 
 def test_entity_key_stability_uses_uuid_not_id():