Sign-Up Flow Test Suite

This page runs end-to-end tests on the sign-up flow. It covers:

• Valid sign-ups: the happy path with valid inputs.
• Field validation: email format, password strength, required fields and length limits.
• Duplicate accounts: signing up with an email that's already registered.
• Edge cases: unicode, whitespace, very long values and injection strings.
• Rate limiting: repeated attempts from the same user or address.
• Email verification: the verify step that follows sign-up.
• Errors and accessibility: what the error states show, and keyboard and screen-reader access.