Recuperación de cuenta en Next.js (3 flujos + reset), con Turnstile

- lib/recover.ts: requestRecovery(type,email) -> password (crea token en
  home_passwordreset + email), accountname (email con las cuentas), activation
  (reenvía enlace); respuesta genérica anti-enumeración. resetPassword(token,pass)
  re-deriva el verifier SRP6 v2 (bnetMakeRegistration) y actualiza battlenet_accounts,
  marca el token usado.
- Routes /api/auth/recover (Turnstile) y /api/auth/reset-password.
- Páginas app/[locale]/recover (RecoverForm: selector de tipo + email + Turnstile) y
  reset-password (ResetForm con token de la URL). Catálogos Recover, Reset.

Verificado: recover sin captcha -> captchaFailed; reset token inválido -> invalidLink;
páginas 200. Reutiliza home_passwordreset de Django. Crypto de reset ya validada.

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

web-next/app/[locale]/recover/RecoverForm.tsx

@@ -0,0 +1,62 @@
+'use client'
+
+import { useState } from 'react'
+import { useTranslations } from 'next-intl'
+import { Turnstile } from '@/components/Turnstile'
+
+const ERROR_KEYS = ['invalidEmail', 'captchaFailed'] as const
+const SITE_KEY = process.env.NEXT_PUBLIC_TURNSTILE_SITE_KEY
+
+export function RecoverForm() {
+  const t = useTranslations('Recover')
+  const [type, setType] = useState('password')
+  const [email, setEmail] = useState('')
+  const [captcha, setCaptcha] = useState('')
+  const [busy, setBusy] = useState(false)
+  const [message, setMessage] = useState<{ ok: boolean; text: string } | null>(null)
+
+  async function handleSubmit(e: React.FormEvent) {
+    e.preventDefault()
+    if (busy) return
+    setBusy(true)
+    setMessage(null)
+    try {
+      const res = await fetch('/api/auth/recover', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ type, email: email.trim(), turnstileToken: captcha }),
+      })
+      const data: { success?: boolean; error?: string } = await res.json()
+      if (data.success) setMessage({ ok: true, text: t('success') })
+      else {
+        const key = (ERROR_KEYS as readonly string[]).includes(data.error ?? '') ? data.error! : 'genericError'
+        setMessage({ ok: false, text: t(key) })
+      }
+    } catch {
+      setMessage({ ok: false, text: t('genericError') })
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  const field = 'w-full rounded border border-amber-900/60 bg-[#2c1e14] px-3 py-2'
+
+  return (
+    <div className="mx-auto max-w-sm">
+      <form onSubmit={handleSubmit} className="space-y-3">
+        <label className="block text-left text-sm text-amber-200/70">{t('type')}</label>
+        <select value={type} onChange={(e) => setType(e.target.value)} className={field}>
+          <option value="password">{t('typePassword')}</option>
+          <option value="accountname">{t('typeAccountName')}</option>
+          <option value="activation">{t('typeActivation')}</option>
+        </select>
+        <input type="email" placeholder={t('email')} value={email} onChange={(e) => setEmail(e.target.value)} required className={field} />
+        <Turnstile onVerify={setCaptcha} />
+        <button type="submit" disabled={busy || (!!SITE_KEY && !captcha)} className="w-full rounded bg-amber-600 px-4 py-2 font-semibold text-[#1b120b] disabled:opacity-60">
+          {busy ? t('sending') : t('submit')}
+        </button>
+      </form>
+      {message && <p className={`mt-3 text-center ${message.ok ? 'text-green-400' : 'text-red-400'}`}>{message.text}</p>}
+    </div>
+  )
+}