* fix: allow invited users to sign up when registration is disabled
Move sign-up restriction logic from better-auth's disableSignUp config
to the existing user.create.before database hook, which already checks
for pending invitations. The frontend signup and login pages now detect
invite flows (?next=/invite/...) and bypass the disabled UI accordingly.
Closes#411
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* test: add regression tests for sign-up hook invite bypass
Verify that the user.create.before database hook correctly:
- allows sign-up when registration is not disabled
- blocks sign-up when disabled and no invitation exists
- allows sign-up when disabled but a pending invitation exists
- respects BETTER_AUTH_ALLOWED_DOMAINS in combination with invites
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* test: add OIDC/social sign-up path coverage for invite bypass
Address review suggestion: add explicit tests verifying the
user.create.before hook handles OIDC/social sign-ups the same way as
email/password — invited users are allowed, uninvited users are blocked.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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