Feat/registration error

[ezedike-evan]

Fix walletAddress undefined validation error on Registration Page

Description

This PR resolves the "Invalid input: expected string, received undefined" error encountered on the registration page in Ogstevyn/payeasy.

The issue occurred when users clicked the AuthButton and submitted the form. The walletAddress field was not properly registered with react-hook-form, causing it to return undefined. Since the validation schema expects a string, the submission failed with a validation error.

This update ensures that walletAddress is correctly registered, tracked, and validated, preventing undefined values from being passed to the schema.

Related Issues

Closes #305

Changes Made

• Properly registered walletAddress with react-hook-form
• Ensured walletAddress value is tracked and included in form submission
• Added fallback handling to prevent undefined from reaching validation schema
• Adjusted validation logic to guarantee a string value is passed

How to Test

1. Navigate to the Registration Page.

2. Connect a wallet (if applicable) or populate the wallet address field.

3. Click the AuthButton to submit the form.

4. Verify:

   • No "Invalid input: expected string, received undefined" error occurs.
   • Form submits successfully when all required fields are valid.
   • Validation errors display correctly when fields are invalid.

[Ogstevyn]

resolve conflicts