Backend endpoints

[parkrafael]

Tasks finished

• Created new endpoints for logbooks and logs (adult cardiac)
• Added linting to backend

API Endpoints

[TonyLiu0226]

Great work so far with the routes. I have suggested few modifications to be made, mostly related to error handling and file structuring.

One main thing is that in the service side, if an error is encountered, the server will crash. So we should return the error back to the controller and handle it there through returning a error status code with the error message, rather than throwing the error directly in the service. I have added a commit as a suggestion for how to do this, please feel free to refactor the rest of the routes in a similar way.

[TonyLiu0226]

Thanks for refactoring things! Just a couple of edge cases to fix now, once thats done feel free to merge in