Enhance Development Experience for Phone Authentication

[remi2257]

The current phone authentication feature in Supabase works effectively in production environments. However, it can be challenging to utilize during the development phase. To improve the development experience, I suggest implementing the following enhancements:

1. Test Phone Number Support:
   Currently, there is no provision to add a test phone number for development purposes. It would greatly benefit developers if Supabase allowed the usage of predefined test phone numbers. For example, being able to utilize a number like "+33 6 12 34 56 78" and expect a predictable OTP, such as "123546". This feature would be particularly valuable during app testing phases and when providing access to testers.

2. Local Development Setup:
   It is currently impossible to set up phone authentication locally. This limitation hampers the ability to develop and test phone authentication functionality in local development environments. Having the ability to configure and test phone authentication locally would greatly enhance the development workflow.

Note: These improvements would align Supabase with the convenience and ease of use provided by similar features in other platforms like Firebase.

Firebase Test Phone Configuration Example

Thank you for considering these suggestions to enhance the phone authentication development experience in Supabase 😄