test(integration): add coverage for repositories, auth resolution, and the two-phase upload

tests/integration/minio/test_storage.py

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+import uuid
+
+import pytest
+from anyio import CapacityLimiter
+
+from src.application.files.storage_keys import source_file_object_key
+from src.config import MinioSettings
+from src.infrastructure.minio.client import create_client
+from src.infrastructure.minio.storage import MinioObjectStorage
+
+pytestmark = [pytest.mark.integration, pytest.mark.minio, pytest.mark.asyncio]
+
+
+async def test_put_object_stores_bytes_under_server_derived_key(
+    minio_settings: MinioSettings,
+) -> None:
+    client = create_client(minio_settings)
+    storage = MinioObjectStorage(client, bucket=minio_settings.bucket, limiter=CapacityLimiter(2))
+    key = source_file_object_key(uuid.uuid4(), uuid.uuid4())
+    data = b"tenant-scoped, id-addressed bytes"
+
+    await storage.put_object(key=key, data=data, content_type="text/csv")
+
+    stored = client.get_object(minio_settings.bucket, key).read()
+    assert stored == data
+
+
+async def test_put_object_overwrites_existing_object_at_same_key(
+    minio_settings: MinioSettings,
+) -> None:
+    client = create_client(minio_settings)
+    storage = MinioObjectStorage(client, bucket=minio_settings.bucket, limiter=CapacityLimiter(2))
+    key = source_file_object_key(uuid.uuid4(), uuid.uuid4())
+
+    await storage.put_object(key=key, data=b"first", content_type="text/csv")
+    await storage.put_object(key=key, data=b"second", content_type="text/csv")
+
+    stored = client.get_object(minio_settings.bucket, key).read()
+    assert stored == b"second"