Initial commit — StreamStack v1

Five-service streaming platform: auth, catalogue, streaming, ingest, thumbnailer.
Includes React frontend served by nginx, NATS JetStream event bus, aiobotocore
async S3, PyAV video metadata + thumbnail extraction, service-to-service JWT auth,
and a full unit + e2e test suite.

tests/conftest.py

@@ -0,0 +1,50 @@
+from collections.abc import AsyncGenerator
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from streamstack.core.db import Base
+
+
+@pytest.fixture(scope="function")
+async def db_engine():
+    engine = create_async_engine("sqlite+aiosqlite:///:memory:")
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    yield engine
+    await engine.dispose()
+
+
+@pytest.fixture(scope="function")
+async def db_session(db_engine) -> AsyncGenerator[AsyncSession, None]:
+    session_factory = async_sessionmaker(db_engine, expire_on_commit=False)
+    async with session_factory() as session:
+        yield session
+
+
+@pytest.fixture
+def mock_nats():
+    nc = AsyncMock()
+    js = AsyncMock()
+    kv = AsyncMock()
+    nc.jetstream.return_value = js
+    js.key_value.return_value = kv
+    js.create_key_value.return_value = kv
+    js.find_key_value.return_value = kv
+    return nc
+
+
+@pytest.fixture
+def mock_s3_client():
+    client = MagicMock()
+    client.head_object.return_value = {
+        "ContentLength": 1024 * 1024,
+        "ContentType": "video/mp4",
+    }
+    return client
+
+
+@pytest.fixture
+def s3_content() -> bytes:
+    return b"fake video content " * 1000