feat: enhance subscription page with pay button, billing period, and alerts

- "Pagar ahora" button generates MercadoPago link and opens in new tab
- Billing period card shows start/end dates and days until next payment
- Warning banners: expired (red), expiring soon (yellow), pending payment
- Improved payment history with icons and translated payment methods

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/app/(dashboard)/configuracion/suscripcion/page.tsx

@@ -1,31 +1,122 @@
 'use client';
 
+import { useState } from 'react';
 import { Header } from '@/components/layouts/header';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { useAuthStore } from '@/stores/auth-store';
-import { useSubscription, usePaymentHistory } from '@/lib/hooks/use-subscription';
-import { CreditCard, Calendar, CheckCircle, AlertCircle, Clock, XCircle } from 'lucide-react';
+import {
+  useSubscription,
+  usePaymentHistory,
+  useGeneratePaymentLink,
+} from '@/lib/hooks/use-subscription';
+import {
+  CreditCard,
+  Calendar,
+  CheckCircle,
+  AlertCircle,
+  Clock,
+  XCircle,
+  ExternalLink,
+  Loader2,
+  AlertTriangle,
+  CalendarClock,
+} from 'lucide-react';
 
-const statusConfig: Record<string, { label: string; color: string; icon: typeof CheckCircle }> = {
-  authorized: { label: 'Activa', color: 'text-green-600 bg-green-50', icon: CheckCircle },
-  pending: { label: 'Pendiente', color: 'text-yellow-600 bg-yellow-50', icon: Clock },
-  paused: { label: 'Pausada', color: 'text-orange-600 bg-orange-50', icon: AlertCircle },
-  cancelled: { label: 'Cancelada', color: 'text-red-600 bg-red-50', icon: XCircle },
+const statusConfig: Record<string, { label: string; color: string; bgColor: string; icon: typeof CheckCircle }> = {
+  authorized: { label: 'Activa', color: 'text-green-700', bgColor: 'bg-green-50 border-green-200', icon: CheckCircle },
+  pending: { label: 'Pendiente de pago', color: 'text-yellow-700', bgColor: 'bg-yellow-50 border-yellow-200', icon: Clock },
+  paused: { label: 'Pausada', color: 'text-orange-700', bgColor: 'bg-orange-50 border-orange-200', icon: AlertCircle },
+  cancelled: { label: 'Cancelada', color: 'text-red-700', bgColor: 'bg-red-50 border-red-200', icon: XCircle },
 };
 
+function getDaysUntil(dateStr: string | null): number | null {
+  if (!dateStr) return null;
+  const diff = new Date(dateStr).getTime() - Date.now();
+  return Math.ceil(diff / (1000 * 60 * 60 * 24));
+}
+
+function formatDate(dateStr: string | null): string {
+  if (!dateStr) return '—';
+  return new Date(dateStr).toLocaleDateString('es-MX', {
+    day: 'numeric',
+    month: 'long',
+    year: 'numeric',
+  });
+}
+
 export default function SuscripcionPage() {
   const { user } = useAuthStore();
   const { data: subscription, isLoading } = useSubscription(user?.tenantId);
   const { data: payments } = usePaymentHistory(user?.tenantId);
+  const generateLink = useGeneratePaymentLink();
+  const [paymentUrl, setPaymentUrl] = useState<string | null>(null);
 
   const status = statusConfig[subscription?.status || ''] || statusConfig.pending;
   const StatusIcon = status.icon;
 
+  const daysUntilEnd = getDaysUntil(subscription?.currentPeriodEnd ?? null);
+  const isExpired = daysUntilEnd !== null && daysUntilEnd <= 0;
+  const isExpiringSoon = daysUntilEnd !== null && daysUntilEnd > 0 && daysUntilEnd <= 5;
+  const needsPayment = subscription?.status === 'pending' || isExpired;
+
+  const handleGenerateLink = async () => {
+    if (!user?.tenantId) return;
+    try {
+      const result = await generateLink.mutateAsync(user.tenantId);
+      setPaymentUrl(result.paymentUrl);
+      window.open(result.paymentUrl, '_blank');
+    } catch {
+      // error handled by mutation state
+    }
+  };
+
   return (
     <>
       <Header title="Suscripción" />
       <main className="p-6 space-y-6">
-        {/* Subscription Status */}
+
+        {/* Warning banner: expired */}
+        {!isLoading && subscription && isExpired && (
+          <div className="flex items-start gap-3 rounded-lg border border-red-300 bg-red-50 p-4">
+            <AlertTriangle className="h-5 w-5 text-red-600 mt-0.5 shrink-0" />
+            <div>
+              <p className="font-semibold text-red-800">Tu suscripción ha vencido</p>
+              <p className="text-sm text-red-700 mt-1">
+                Tu período de facturación terminó el {formatDate(subscription.currentPeriodEnd)}.
+                Realiza tu pago para continuar usando todas las funciones de Horux360.
+              </p>
+            </div>
+          </div>
+        )}
+
+        {/* Warning banner: expiring soon */}
+        {!isLoading && subscription && isExpiringSoon && !isExpired && (
+          <div className="flex items-start gap-3 rounded-lg border border-yellow-300 bg-yellow-50 p-4">
+            <AlertTriangle className="h-5 w-5 text-yellow-600 mt-0.5 shrink-0" />
+            <div>
+              <p className="font-semibold text-yellow-800">Tu suscripción vence pronto</p>
+              <p className="text-sm text-yellow-700 mt-1">
+                Tu período de facturación termina en {daysUntilEnd} día{daysUntilEnd !== 1 ? 's' : ''} ({formatDate(subscription.currentPeriodEnd)}).
+                Asegúrate de tener tu método de pago al día.
+              </p>
+            </div>
+          </div>
+        )}
+
+        {/* Warning banner: pending payment */}
+        {!isLoading && subscription && subscription.status === 'pending' && !isExpired && (
+          <div className="flex items-start gap-3 rounded-lg border border-yellow-300 bg-yellow-50 p-4">
+            <Clock className="h-5 w-5 text-yellow-600 mt-0.5 shrink-0" />
+            <div>
+              <p className="font-semibold text-yellow-800">Pago pendiente</p>
+              <p className="text-sm text-yellow-700 mt-1">
+                Tu suscripción está pendiente de pago. Haz clic en el botón de abajo para completar tu pago.
+              </p>
+            </div>
+          </div>
+        )}
+
+        {/* Subscription Status + Pay button */}
         <Card>
           <CardHeader>
             <CardTitle className="flex items-center gap-2">
@@ -38,16 +129,18 @@ export default function SuscripcionPage() {
               <div className="animate-pulse space-y-4">
                 <div className="h-4 bg-muted rounded w-1/3" />
                 <div className="h-4 bg-muted rounded w-1/2" />
+                <div className="h-4 bg-muted rounded w-1/4" />
               </div>
             ) : subscription ? (
-              <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+              <div className="space-y-6">
+                <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
                   <div>
                     <p className="text-sm text-muted-foreground">Plan</p>
                     <p className="text-lg font-semibold capitalize">{subscription.plan}</p>
                   </div>
                   <div>
                     <p className="text-sm text-muted-foreground">Estado</p>
-                  <span className={`inline-flex items-center gap-1.5 px-2.5 py-1 rounded-full text-sm font-medium ${status.color}`}>
+                    <span className={`inline-flex items-center gap-1.5 px-2.5 py-1 rounded-full text-sm font-medium border ${status.bgColor} ${status.color}`}>
                       <StatusIcon className="h-4 w-4" />
                       {status.label}
                     </span>
@@ -58,13 +151,90 @@ export default function SuscripcionPage() {
                       ${Number(subscription.amount).toLocaleString('es-MX')} MXN
                     </p>
                   </div>
+                  <div>
+                    <p className="text-sm text-muted-foreground">Frecuencia</p>
+                    <p className="text-lg font-semibold capitalize">{subscription.frequency === 'monthly' ? 'Mensual' : subscription.frequency}</p>
+                  </div>
+                </div>
+
+                {/* Pay button */}
+                {needsPayment && Number(subscription.amount) > 0 && (
+                  <div className="flex flex-col sm:flex-row items-start sm:items-center gap-3 pt-4 border-t">
+                    <button
+                      onClick={handleGenerateLink}
+                      disabled={generateLink.isPending}
+                      className="inline-flex items-center gap-2 rounded-lg bg-blue-600 px-5 py-2.5 text-sm font-semibold text-white hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+                    >
+                      {generateLink.isPending ? (
+                        <Loader2 className="h-4 w-4 animate-spin" />
+                      ) : (
+                        <ExternalLink className="h-4 w-4" />
+                      )}
+                      {generateLink.isPending ? 'Generando link...' : 'Pagar ahora'}
+                    </button>
+                    {paymentUrl && (
+                      <a
+                        href={paymentUrl}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        className="text-sm text-blue-600 hover:underline"
+                      >
+                        Abrir link de pago nuevamente
+                      </a>
+                    )}
+                    {generateLink.isError && (
+                      <p className="text-sm text-red-600">
+                        Error al generar el link. Intenta de nuevo o contacta soporte.
+                      </p>
+                    )}
+                  </div>
+                )}
               </div>
             ) : (
-              <p className="text-muted-foreground">No se encontró información de suscripción.</p>
+              <p className="text-muted-foreground">No se encontró información de suscripción. Contacta a soporte.</p>
             )}
           </CardContent>
         </Card>
 
+        {/* Next payment / Billing period */}
+        {subscription && (subscription.currentPeriodStart || subscription.currentPeriodEnd) && (
+          <Card>
+            <CardHeader>
+              <CardTitle className="flex items-center gap-2">
+                <CalendarClock className="h-5 w-5" />
+                Período de Facturación
+              </CardTitle>
+            </CardHeader>
+            <CardContent>
+              <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+                <div>
+                  <p className="text-sm text-muted-foreground">Inicio del período</p>
+                  <p className="font-medium">{formatDate(subscription.currentPeriodStart)}</p>
+                </div>
+                <div>
+                  <p className="text-sm text-muted-foreground">Fin del período</p>
+                  <p className="font-medium">{formatDate(subscription.currentPeriodEnd)}</p>
+                </div>
+                <div>
+                  <p className="text-sm text-muted-foreground">Próximo pago</p>
+                  {daysUntilEnd !== null ? (
+                    isExpired ? (
+                      <p className="font-medium text-red-600">Vencido — pago requerido</p>
+                    ) : (
+                      <p className="font-medium">
+                        En {daysUntilEnd} día{daysUntilEnd !== 1 ? 's' : ''}
+                        <span className="text-muted-foreground"> ({formatDate(subscription.currentPeriodEnd)})</span>
+                      </p>
+                    )
+                  ) : (
+                    <p className="font-medium text-muted-foreground">Sin fecha definida</p>
+                  )}
+                </div>
+              </div>
+            </CardContent>
+          </Card>
+        )}
+
         {/* Payment History */}
         <Card>
           <CardHeader>
@@ -88,26 +258,34 @@ export default function SuscripcionPage() {
                   <tbody>
                     {payments.map((payment) => (
                       <tr key={payment.id} className="border-b last:border-0">
-                        <td className="py-2 px-3">
-                          {new Date(payment.createdAt).toLocaleDateString('es-MX')}
+                        <td className="py-2.5 px-3">
+                          {new Date(payment.createdAt).toLocaleDateString('es-MX', {
+                            day: 'numeric',
+                            month: 'short',
+                            year: 'numeric',
+                          })}
                         </td>
-                        <td className="py-2 px-3">
-                          ${Number(payment.amount).toLocaleString('es-MX')}
+                        <td className="py-2.5 px-3 font-medium">
+                          ${Number(payment.amount).toLocaleString('es-MX')} MXN
                         </td>
-                        <td className="py-2 px-3">
-                          <span className={`inline-flex items-center px-2 py-0.5 rounded text-xs font-medium ${
+                        <td className="py-2.5 px-3">
+                          <span className={`inline-flex items-center gap-1 px-2 py-0.5 rounded text-xs font-medium ${
                             payment.status === 'approved'
                               ? 'bg-green-50 text-green-700'
                               : payment.status === 'rejected'
                               ? 'bg-red-50 text-red-700'
                               : 'bg-yellow-50 text-yellow-700'
                           }`}>
+                            {payment.status === 'approved' && <CheckCircle className="h-3 w-3" />}
+                            {payment.status === 'rejected' && <XCircle className="h-3 w-3" />}
+                            {payment.status !== 'approved' && payment.status !== 'rejected' && <Clock className="h-3 w-3" />}
                             {payment.status === 'approved' ? 'Aprobado' :
                              payment.status === 'rejected' ? 'Rechazado' : 'Pendiente'}
                           </span>
                         </td>
-                        <td className="py-2 px-3 text-muted-foreground">
-                          {payment.paymentMethod || '-'}
+                        <td className="py-2.5 px-3 text-muted-foreground capitalize">
+                          {payment.paymentMethod === 'bank_transfer' ? 'Transferencia' :
+                           payment.paymentMethod || '—'}
                         </td>
                       </tr>
                     ))}
@@ -115,9 +293,10 @@ export default function SuscripcionPage() {
                 </table>
               </div>
             ) : (
-              <p className="text-muted-foreground text-center py-4">
-                No hay pagos registrados aún.
-              </p>
+              <div className="text-center py-8">
+                <Calendar className="h-10 w-10 text-muted-foreground/40 mx-auto mb-3" />
+                <p className="text-muted-foreground">No hay pagos registrados aún.</p>
+              </div>
             )}
           </CardContent>
         </Card>

apps/web/lib/api/subscription.ts

@@ -8,7 +8,10 @@ export interface Subscription {
   amount: string;
   frequency: string;
   mpPreapprovalId: string | null;
+  currentPeriodStart: string | null;
+  currentPeriodEnd: string | null;
   createdAt: string;
+  updatedAt: string;
 }
 
 export interface Payment {