feat: adds register payments params

[pierreoria]

Proposed changes

This commit adds the following parameters to the register_payment function.

• custom_properties
• coupon
• app_version
• device_os
• store_id

Additional context

The store_id parameter is documented in the API reference , but not in the developer docs.
In live API tests, adding this field raises no errors, but I'm unsure if the field is ever processed or just ignored.

Checklist

• Style check and tests pass locally with my changes, as well as on identical workflow on forked repository
• I have added tests that prove my fix is effective or that my feature works
• I have tested the updated request signature works on the live API endpoint