feat: add SoundRepository and SoundScannerService for audio file management

- Implemented SoundRepository for database operations related to sounds, including methods for retrieving, creating, updating, and deleting sound records.
- Developed SoundScannerService to scan directories for audio files, calculate their metadata, and synchronize with the database.
- Added support for various audio file formats and integrated ffmpeg for audio duration extraction.
- Created comprehensive tests for sound API endpoints and sound scanner service to ensure functionality and error handling.
- Updated dependencies to include ffmpeg-python for audio processing.

tests/conftest.py

@@ -114,6 +114,19 @@ async def authenticated_client(
         yield client
 
 
+@pytest_asyncio.fixture
+async def authenticated_admin_client(
+    test_app: FastAPI, admin_cookies: dict[str, str],
+) -> AsyncGenerator[AsyncClient, None]:
+    """Create a test HTTP client with admin authentication cookies."""
+    async with AsyncClient(
+        transport=ASGITransport(app=test_app),
+        base_url="http://test",
+        cookies=admin_cookies,
+    ) as client:
+        yield client
+
+
 @pytest_asyncio.fixture
 async def test_plan(test_session: AsyncSession) -> Plan:
     """Create a test plan."""
@@ -307,3 +320,17 @@ async def auth_cookies(test_user: User) -> dict[str, str]:
     access_token = JWTUtils.create_access_token(token_data)
 
     return {"access_token": access_token}
+
+
+@pytest_asyncio.fixture
+async def admin_cookies(admin_user: User) -> dict[str, str]:
+    """Create admin authentication cookies with JWT token."""
+    token_data = {
+        "sub": str(admin_user.id),
+        "email": admin_user.email,
+        "role": admin_user.role,
+    }
+
+    access_token = JWTUtils.create_access_token(token_data)
+
+    return {"access_token": access_token}