🪙 feat: automatically add start balance

[MSITETOP]

Summary

This pull request introduces a new feature for automatic assignment of an initial balance upon user registration. This functionality addresses the related issue #2687.

Change Type

• New feature (non-breaking change which adds functionality)

Testing

To test the new feature, you need to add the following variables to your .env file:

CHECK_BALANCE=true
START_BALANCE=20000

Where START_BALANCE represents the number of tokens that will be automatically assigned to the user upon registration. After a new user is registered, they will automatically receive 20,000 tokens.

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• I have commented in any complex areas of my code
• Local unit tests pass with my changes
• Any changes dependent on mine have been merged and published in downstream modules.

[khfung]

That's a very helpful function