* feat: add email verification and password reset for hosted auth
Add email-based sign-up verification and password reset flows using
Better Auth and Loops transactional emails. New routes for
/verify-email, /reset-password, and /forgot-password. Sign-up now
redirects to verify-email page instead of showing inline state.
* refactor: use TanStack Form standard schema validation for auth forms
Pass Zod schemas directly to `validators.onSubmit` instead of manually
calling safeParse and reducing over issues. TanStack Form v1.25+ with
Zod v4 handles field-level error extraction automatically.
* refactor: use form.isSubmitSuccessful instead of manual state
Replace `submittedEmail` state in forgot-password and `isComplete`
state in reset-password with TanStack Form's built-in
`isSubmitSuccessful` flag, removing the need for useState in both.
* fix: formatting and lint fixes for ci:check
Fix prettier formatting, replace unsafe type assertions with
Reflect.get for Cloudflare env access.
* fix auth copy and verification redirect
* refactor: derive auth route page copy from state
