fix: join recognized photo people with ampersands [skip ci]

tests/test_photo_watermark.py

@@ -24,12 +24,12 @@ def test_watermark_includes_filename_and_recognized_people(service, monkeypatch)
             "date": "2026-10-17",
             "title": "Family",
             "filename": "one.jpg",
-            "people": "Alice · Bob",
+            "people": "Alice & Bob",
         },
         service.renderer.font,
         size=(1600, 1200),
     )
-    assert drawn == ["2026-10-17 · Alice · Bob · Family · one.jpg"]
+    assert drawn == ["2026-10-17 · Alice & Bob · Family · one.jpg"]
 
 
 @pytest.mark.parametrize("size", [(1600, 1200), (1200, 1600)])

tests/test_synology_photos_api.py

@@ -134,7 +134,7 @@ def test_api_caption_keeps_filename_and_folder_with_optional_people(
     assert caption["date"] == "2026-10-17"
     assert caption["title"] == "Family"
     assert caption["filename"] == "one.jpg"
-    assert caption.get("people", "") == ("Alice · Bob" if labels_available else "")
+    assert caption.get("people", "") == ("Alice & Bob" if labels_available else "")
 
 
 def test_source_without_mount_pagination_scope_and_session(