fix: replace AI-generated chef photo on reuniones-familiares

The "Cenas Privadas" card used hero-nosotros-gen.webp, an AI-generated
image with garbled embroidery text on the chef's jacket. Swap it for
a real photo of the MNQ kitchen team.

src/pages/reuniones-familiares.astro

@@ -162,8 +162,8 @@ const whatsappAriaLabel = 'Contactar con MNQ por WhatsApp';
         <div style="display: flex; flex-direction: column; gap: var(--space-6);">
           <div class="overflow-hidden hover-scale rounded-lg border-outline-soft" style="aspect-ratio: 3/4;">
             <img
-              src="/images/generated/hero-nosotros-gen.webp"
-              alt="Cenas privadas — chef ejecutiva"
+              src="/images/team/mnq-team-kitchen.webp"
+              alt="Cenas privadas — equipo de cocina de MNQ en preparación"
               width="1264"
               height="848"
               style="width:100%;height:100%;object-fit:cover;object-position:center top;"