feat: pestaña CRM con % a cliente por canal y cruce ads vs Clientify

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/dashboard/layout.tsx

@@ -11,7 +11,8 @@ import {
   UserCheck,
   CalendarDays,
   Radio,
-  Megaphone
+  Megaphone,
+  Contact
 } from 'lucide-react';
 import { createClient } from '@/lib/supabase/server';
 import { logoutAction } from '@/app/auth/actions';
@@ -57,6 +58,13 @@ export default async function DashboardLayout({
               <BarChart3 className="w-4 h-4 text-brand-500" />
               Métricas
             </Link>
+            <Link
+              href="/dashboard/crm"
+              className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm font-medium text-gray-300 hover:text-white hover:bg-gray-800/60 transition-all"
+            >
+              <Contact className="w-4 h-4 text-teal-400" />
+              CRM
+            </Link>
             <Link
               href="/dashboard/seguimiento"
               className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm font-medium text-gray-300 hover:text-white hover:bg-gray-800/60 transition-all"