Fix API drill endpoint and add logging

Add logging and error handling to the get_drill function and create a new API endpoint for fetching drills by ID.

Logging and Error Handling in get_drill function:
- Add logging statements before and after querying the drill by ID in app/routes/drills.py.
- Add a try-catch block to handle the 404 error and return a JSON response with a 404 status code and error message.
New API Endpoint for Fetching Drills by ID:
- Create a new file src/routes/api/drills/[id]/+server.js to handle the GET request for a specific drill by ID.
- Add a try-catch block to handle the 404 error and return a JSON response with a 404 status code and error message.

For more details, open the Copilot Workspace session.

austeane / qdrill