fix(adapter): close final foundation review

harness/tests/test_dwh_port_contract.py

@@ -55,8 +55,16 @@ def test_contract_types_are_public_and_capabilities_are_immutable():
 
 
 def test_all_contract_types_are_exported_from_public_package():
+    from tht.ports import DwhAdapter as PublicDwhAdapter
+    from tht.ports import DwhCapabilities as PublicDwhCapabilities
+    from tht.ports import DwhHealth as PublicDwhHealth
     from tht.ports import DistinctValues as PublicDistinctValues
+    from tht.ports import UnsupportedCapability as PublicUnsupportedCapability
 
     result = PublicDistinctValues(values=["a"], truncated=True)
     assert result.values == ["a"]
     assert result.truncated is True
+    assert PublicDwhAdapter is DwhAdapter
+    assert PublicDwhCapabilities is DwhCapabilities
+    assert PublicDwhHealth is DwhHealth
+    assert PublicUnsupportedCapability is UnsupportedCapability