web-next: migrar toda la UI al tema real nw-ryu

Reescritura completa del frontend Next.js del sistema visual Tailwind
"simulado" al tema Django original (nw-ryu), para paridad pixel con la
web actual antes del cutover.

- Tema real: copia de static/nw-themes/nw-ryu + favicons a public/, el
  layout carga el novavow-style.css real de ultimo (gana la cascada sobre
  Tailwind) + Font Awesome.
- Shell replicando los partials Django: SiteHeader, Video, Social, Footer,
  ServerClock; home con estructura real (main-page/middle-content/...).
- Helpers reutilizables: PageShell (main-page > middle-content > body-content
  > title-content) y ServiceBox (title-box-content + back-to-account).
- Paginas migradas a clases reales del tema (fieldset/tool-button/char-box/
  item-box/info-box-light/max-center-table/alert-message/botones reales),
  eliminando el markup Tailwind (.nw-btn/.nw-card/.nw-input):
  auth (login/register/recover/reset/select-account/activate),
  cuenta + servicios de personaje (revive/unstuck/rename/customize/
  change-race/change-faction/level-up/gold/transfer + pago Stripe),
  ajustes (change-password/change-email/security-token),
  comunidad (vote-points/recruit/battlepay), foro completo, y
  admin (indice + 7 secciones + los Admin*Manager).
- Se conserva el bilingue (next-intl); claves nuevas en messages/es|en.json.

Verificado: typecheck + build OK; rutas protegidas 307->login; sin
MISSING_MESSAGE; cero Tailwind residual (solo .nw-tool-btn/.nw-page,
clases propias en globals.css).

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

web-next/app/[locale]/admin/page.tsx

@@ -2,6 +2,7 @@ import { getTranslations, setRequestLocale } from 'next-intl/server'
 import { redirect, Link } from '@/i18n/navigation'
 import { getSession } from '@/lib/session'
 import { isAdmin } from '@/lib/admin'
+import { PageShell } from '@/components/PageShell'
 
 export const dynamic = 'force-dynamic'
 
@@ -23,22 +24,35 @@ export default async function AdminPage({ params }: { params: Promise<{ locale:
     { href: '/admin/forum', label: t('manageForum'), icon: '💬' },
   ]
 
+  const rows: typeof items[] = []
+  for (let i = 0; i < items.length; i += 2) rows.push(items.slice(i, i + 2))
+
   return (
-    <main className="mx-auto max-w-3xl px-4 py-8">
-      <h1 className="mb-6 text-2xl font-bold text-amber-500">{t('title')}</h1>
-      <div className="grid gap-3 sm:grid-cols-2">
-        {items.map((it) => (
-          <Link
-            key={it.href}
-            href={it.href}
-            className="flex items-center gap-3 rounded-xl border border-nw-border/70 bg-nw-panel/80 p-4 shadow-lg shadow-black/30 backdrop-blur transition hover:border-nw-gold/60 hover:bg-nw-panel-2/70"
-          >
-            <span className="text-2xl" aria-hidden>{it.icon}</span>
-            <span className="font-semibold text-nw-text">{it.label}</span>
-            <span className="ml-auto text-nw-gold-light" aria-hidden>→</span>
-          </Link>
-        ))}
+    <PageShell title={t('title')}>
+      <div className="box-content">
+        <div className="body-box-content-account">
+          <table className="max-center-table fixed-layout-table">
+            <tbody>
+              {rows.map((pair, i) => (
+                <tr key={i}>
+                  {pair.map((it) => (
+                    <td key={it.href}>
+                      <Link href={it.href}>
+                        <div className="tool-button">
+                          <div className="tool-button-div">
+                            <span className="first-brown shadow big-font">{it.icon} {it.label}</span>
+                          </div>
+                        </div>
+                      </Link>
+                    </td>
+                  ))}
+                  {pair.length === 1 && <td />}
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
       </div>
-    </main>
+    </PageShell>
   )
 }