16 user routes fix

[JustDaile]

• Fixed and refactored user routes.
  • Improved error handling of the user routes.
• Added reusable model struct.
  • Added lifecycle hooks for models.
• Included some basic unit tests.
• Added vscode configuration for debugging.
• Changed how/when passwords are hashed.

[JustDaile]

My apologies on the wide scope of this PR.

[JustDaile]

Later commits do use the utils. I fixed it later on, please check.