Release v0.1.9: enforce Photos API boundary and finalize Server migration

tests/test_photo_orientation.py

@@ -62,12 +62,16 @@ def test_cached_dimensions_invalidation_and_no_fallback(
         ),
     )
     assert len(oriented.catalog("family")) == 1
+    from pigway_frame_flow.providers.photo_sources import dimensions
+
     monkeypatch.setattr(
         "pigway_frame_flow.providers.photo_sources.dimensions",
         lambda *a: pytest.fail("unchanged dimensions should be cached"),
     )
     assert len(oriented.catalog("family", refresh=True)) == 1
-    monkeypatch.undo()
+    monkeypatch.setattr(
+        "pigway_frame_flow.providers.photo_sources.dimensions", dimensions
+    )
     Image.new("RGB", (50, 100)).save(settings.photo_root / "20240101 Day" / "wide.jpg")
     assert oriented.catalog("family", refresh=True) == []
     with pytest.raises(FlowError):
@@ -110,3 +114,7 @@ def test_orientation_validation_and_api(client, oriented):
         ).json()["error"]["code"]
         == "UNSUPPORTED_CAPABILITY"
     )
+
+
+# Legacy algorithms remain covered; production filesystem access is tested separately.
+pytestmark = pytest.mark.usefixtures("legacy_photo_engine")