fix(v2-ingestion): harden LBA/BCL snapshot contract for public data

tests/test_import_snapshots_command.py

@@ -103,6 +103,86 @@ def test_valid_snapshot_import(tmp_path, settings):
     assert PlayerSeasonStats.objects.count() == 1
 
 
+@pytest.mark.django_db
+def test_snapshot_import_succeeds_with_optional_bio_and_physical_fields_missing(tmp_path, settings):
+    incoming = tmp_path / "incoming"
+    archive = tmp_path / "archive"
+    failed = tmp_path / "failed"
+    incoming.mkdir()
+    archive.mkdir()
+    failed.mkdir()
+
+    payload = _valid_payload()
+    for optional_field in ("first_name", "last_name", "birth_date", "nationality", "height_cm", "weight_kg", "position", "role"):
+        payload["records"][0].pop(optional_field, None)
+
+    file_path = incoming / "optional-missing.json"
+    _write_json(file_path, payload)
+
+    settings.STATIC_DATASET_INCOMING_DIR = str(incoming)
+    settings.STATIC_DATASET_ARCHIVE_DIR = str(archive)
+    settings.STATIC_DATASET_FAILED_DIR = str(failed)
+
+    call_command("import_snapshots")
+
+    run = ImportRun.objects.get()
+    assert run.status == ImportRun.RunStatus.SUCCESS
+    player = Player.objects.get(source_uid="player-23")
+    assert player.first_name == "LeBron"
+    assert player.last_name == "James"
+    assert player.birth_date is None
+    assert player.nationality is None
+    assert player.nominal_position is None
+    assert player.height_cm is None
+    assert player.weight_kg is None
+    assert PlayerSeasonStats.objects.count() == 1
+
+
+@pytest.mark.django_db
+@pytest.mark.parametrize(
+    ("source_name", "competition_id", "competition_name"),
+    [
+        ("lba", "lba-serie-a", "Lega Basket Serie A"),
+        ("bcl", "bcl", "Basketball Champions League"),
+    ],
+)
+def test_partial_public_source_snapshot_imports_for_lba_and_bcl(
+    tmp_path,
+    settings,
+    source_name,
+    competition_id,
+    competition_name,
+):
+    incoming = tmp_path / "incoming"
+    archive = tmp_path / "archive"
+    failed = tmp_path / "failed"
+    incoming.mkdir()
+    archive.mkdir()
+    failed.mkdir()
+
+    payload = _valid_payload()
+    payload["source_name"] = source_name
+    row = payload["records"][0]
+    row["competition_external_id"] = competition_id
+    row["competition_name"] = competition_name
+    for optional_field in ("first_name", "last_name", "birth_date", "nationality", "height_cm", "weight_kg", "position", "role"):
+        row.pop(optional_field, None)
+
+    _write_json(incoming / f"{source_name}.json", payload)
+
+    settings.STATIC_DATASET_INCOMING_DIR = str(incoming)
+    settings.STATIC_DATASET_ARCHIVE_DIR = str(archive)
+    settings.STATIC_DATASET_FAILED_DIR = str(failed)
+
+    call_command("import_snapshots")
+
+    run = ImportRun.objects.get()
+    assert run.status == ImportRun.RunStatus.SUCCESS
+    assert Competition.objects.filter(source_uid=competition_id, name=competition_name).exists()
+    assert Player.objects.filter(source_uid="player-23").exists()
+    assert PlayerSeasonStats.objects.count() == 1
+
+
 @pytest.mark.django_db
 def test_invalid_snapshot_rejected_and_moved_to_failed(tmp_path, settings):
     incoming = tmp_path / "incoming"