The password setup/change form used hx-target="#password-section" with
hx-swap="innerHTML", but that div wraps the form itself. On a validation
error the route returns only an alert div, so the swap replaced the entire
form — the password inputs disappeared. Most visible during registration's
"set password" step.
Retarget the form to a dedicated #password-error div outside the form
(mirrors the working login form's #login-error pattern), so the form and
its inputs survive errors while messages still render inside #password-section.
Also fix pre-existing broken e2e tests: they omitted the required
current_password fill and used passwords below the zxcvbn strength
threshold (score 1 < MIN_PASSWORD_STRENGTH=2).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
