feat(ecommerce): ADR 0008 - iteracion de paleta a Azul & Amarillo

Reemplaza los valores de marino/coral/coral-claro de "Navy & Coral"
por una paleta azul solido (#0055B8, ancla + accion unica) + amarillo
(#FFC220, acento en badges/detalles, nunca en botones). Los nombres de
token (--color-ari-marino/coral/coral-claro) no cambian, solo sus
valores, por lo que el resto de componentes que ya migraron en las
sub-fases 1-3 heredan la paleta nueva automaticamente via CSS vars.

Ajustes puntuales de contraste: badges de descuento/destacado en
product-card.tsx pasan de texto blanco a texto marino sobre fondo
amarillo; linea decorativa del navbar pasa de coral (ahora identico al
marino) a coral-claro para seguir siendo visible contra el header.

workloads/ecommerce/components/layout/navbar.tsx

@@ -50,7 +50,7 @@ export function Navbar({ products, categories }: { products: Product[]; categori
       </div>
 
       <div className="relative overflow-visible bg-white">
-        <div className="pointer-events-none absolute inset-x-0 top-0 h-1 bg-ari-coral" />
+        <div className="pointer-events-none absolute inset-x-0 top-0 h-1 bg-ari-coral-claro" />
         <div className="mx-auto grid max-w-7xl grid-cols-[auto_1fr_auto] items-center gap-4 px-4 py-4 lg:gap-8">
           <Link href="/" aria-label="ARI shopping" className="shrink-0">
             {/* eslint-disable-next-line @next/next/no-img-element -- vector propio, next/image no optimiza SVG sin habilitar dangerouslyAllowSVG */}

workloads/ecommerce/components/product/product-card.tsx

@@ -36,11 +36,11 @@ export function ProductCard({ product, priority = false }: { product: Product; p
     <article className="group flex h-full flex-col overflow-hidden rounded-lg border border-slate-100 bg-white shadow-lg shadow-ari-marino/5 transition duration-300 hover:-translate-y-1.5 hover:shadow-2xl hover:shadow-ari-coral/10">
       <div className="relative aspect-square overflow-hidden bg-white">
         <Link href={`/product/${product.slug}`} prefetch={false}><Image src={product.thumbnail} alt={product.name} fill priority={priority} sizes="(max-width: 640px) 82vw, (max-width: 1024px) 44vw, 280px" className="object-cover transition duration-500 group-hover:scale-[1.035]" /></Link>
-        <div className="absolute left-3 top-3 flex gap-2">{discountPercent && discountPercent > 0 && <Badge className="bg-ari-coral text-white">-{discountPercent}%</Badge>}{product.isNew && <Badge className="bg-ari-marino text-white">Nuevo</Badge>}{product.featured && <Badge className="bg-ari-coral-claro text-white"><Sparkles className="mr-1 size-3" />Top</Badge>}</div>
+        <div className="absolute left-3 top-3 flex gap-2">{discountPercent && discountPercent > 0 && <Badge className="bg-ari-coral-claro text-ari-marino">-{discountPercent}%</Badge>}{product.isNew && <Badge className="bg-ari-marino text-white">Nuevo</Badge>}{product.featured && <Badge className="bg-ari-coral-claro text-ari-marino"><Sparkles className="mr-1 size-3" />Top</Badge>}</div>
         <button type="button" aria-label={isFavorite ? "Quitar de favoritos" : "Agregar a favoritos"} aria-pressed={isFavorite} className={`absolute right-3 top-3 rounded-full p-2.5 shadow-lg backdrop-blur transition ${isFavorite ? "bg-ari-coral text-white" : "bg-white/95 text-slate-900 hover:text-ari-coral"}`} onClick={() => toggleProduct(product)}><Heart className={`size-4 ${isFavorite ? "fill-current" : ""}`} /></button>
       </div>
       <div className="flex flex-1 flex-col space-y-3 p-5">
-        <div className="flex items-center justify-between gap-2 text-xs font-bold text-slate-500"><span>{product.category}</span><span className="rounded-md bg-ari-coral-claro/10 px-2 py-1 text-ari-coral-claro">{product.collection}</span></div>
+        <div className="flex items-center justify-between gap-2 text-xs font-bold text-slate-500"><span>{product.category}</span><span className="rounded-md bg-ari-coral-claro/10 px-2 py-1 text-ari-marino">{product.collection}</span></div>
         <Link href={`/product/${product.slug}`} prefetch={false}><h3 className="line-clamp-2 min-h-12 text-lg font-black leading-6 text-ari-marino group-hover:text-ari-coral">{product.name}</h3></Link>
         <p className="line-clamp-2 min-h-10 text-sm leading-5 text-slate-500">{product.shortDescription}</p>
         {product.variants.length > 1 && (