fix: escape Cierre quotes, commit eslint deps, restore build lint gate

components/sections/Cierre.tsx

@@ -17,7 +17,7 @@ export function Cierre() {
           <motion.div variants={fadeInUp}><Wordmark size="lg" onDark /></motion.div>
           <motion.blockquote variants={fadeInUp}
             className="mt-10 font-serif italic text-2xl md:text-4xl font-bold leading-snug max-w-3xl">
-            <span className="text-gold-bright">"</span>{cierre.quote}<span className="text-gold-bright">"</span>
+            <span className="text-gold-bright">&ldquo;</span>{cierre.quote}<span className="text-gold-bright">&rdquo;</span>
           </motion.blockquote>
           <motion.div variants={fadeInUp} className="mt-10">
             <CTA href={whatsapp.href} label={cierre.cta} variant="dark" />