feat: Implement background extraction processor with concurrency control

- Added `ExtractionProcessor` class to handle extraction queue processing in the background.
- Implemented methods for starting, stopping, and queuing extractions with concurrency limits.
- Integrated logging for monitoring the processor's status and actions.
- Created tests for the extraction processor to ensure functionality and error handling.

test: Add unit tests for extraction API endpoints

- Created tests for successful extraction creation, authentication checks, and processor status retrieval.
- Ensured proper responses for authenticated and unauthenticated requests.

test: Implement unit tests for extraction repository

- Added tests for creating, retrieving, and updating extractions in the repository.
- Mocked database interactions to validate repository behavior without actual database access.

test: Add comprehensive tests for extraction service

- Developed tests for extraction creation, service detection, and sound record creation.
- Included tests for handling duplicate extractions and invalid URLs.

test: Add unit tests for extraction background processor

- Created tests for the `ExtractionProcessor` class to validate its behavior under various conditions.
- Ensured proper handling of extraction queuing, processing, and completion callbacks.

fix: Update OAuth service tests to use AsyncMock

- Modified OAuth provider tests to use `AsyncMock` for mocking asynchronous HTTP requests.

tests/services/test_oauth_service.py

@@ -1,7 +1,7 @@
 """Tests for OAuth service."""
 
 from typing import Any
-from unittest.mock import Mock, patch
+from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
 
@@ -117,7 +117,7 @@ class TestGoogleOAuthProvider:
             "picture": "https://example.com/avatar.jpg",
         }
 
-        with patch("httpx.AsyncClient.get") as mock_get:
+        with patch("httpx.AsyncClient.get", new_callable=AsyncMock) as mock_get:
             mock_response = Mock()
             mock_response.status_code = 200
             mock_response.json.return_value = mock_response_data
@@ -162,7 +162,7 @@ class TestGitHubOAuthProvider:
             {"email": "secondary@example.com", "primary": False, "verified": True},
         ]
 
-        with patch("httpx.AsyncClient.get") as mock_get:
+        with patch("httpx.AsyncClient.get", new_callable=AsyncMock) as mock_get:
             # Mock user profile response
             mock_user_response = Mock()
             mock_user_response.status_code = 200
@@ -174,7 +174,7 @@ class TestGitHubOAuthProvider:
             mock_emails_response.json.return_value = mock_emails_data
 
             # Return different responses based on URL
-            def side_effect(url, **kwargs):
+            async def side_effect(url, **kwargs):
                 if "user/emails" in str(url):
                     return mock_emails_response
                 return mock_user_response