web-next: rename-character/customize-character por SumUp + renombrado de rutas

- /rename-character y /customize-character: renombrar/personalizar pagados por SumUp
  (getRenamePrice/getCustomizePrice). SumUp ahora es service-aware: columna
  home_stripelog.service; createSumUpCheckout guarda service+character;
  fulfillSumUpCheckout despacha a la acción del servicio (.char rename/customi) o,
  sin service, acredita PD. [service]/checkout acepta provider:'sumup';
  PaidServiceForm acepta provider+confirmText; service-success maneja el return SumUp.
  Se eliminan las antiguas /rename y /customize (Stripe).
- /revive-character (comparte ReviveServiceContent); se elimina /revive.
- Renombres de ruta + todos sus enlaces:
  /account -> /my-account, /recruit -> /recruit-a-friend, /unstuck -> /unstuck-character.
  (/select-account y /api/account/* intactos.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web-next/app/[locale]/login/LoginForm.tsx

@@ -36,7 +36,7 @@ export function LoginForm() {
       const data: { success?: boolean; needsSelection?: boolean; error?: string } = await res.json()
       if (data.success) {
         setMessage({ ok: true, text: t('success') })
-        router.push(data.needsSelection ? '/select-account' : '/account')
+        router.push(data.needsSelection ? '/select-account' : '/my-account')
       } else {
         const key = (ERROR_KEYS as readonly string[]).includes(data.error ?? '') ? data.error! : 'genericError'
         setMessage({ ok: false, text: t(key) })