feat(testimonials): replace static quote with 11-item Swiper carousel

Installs swiper, rewrites HomeTestimonials with loop, 6400ms autoplay,
clickable pagination bullets, and prev/next navigation. Extracts all 11
testimonials from the live site into both EN and ES content files. Styles
bullets and arrows with accent colour tokens to match the live site.

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

www/src/components/home/HomeTestimonials.astro

@@ -6,10 +6,47 @@ const { section } = Astro.props;
 <section class="section cream-section testimonial-section">
   <div class="container">
     <h2>{section.heading}</h2>
-    <blockquote>
-      <strong>{section.featured.author}</strong>
-      {section.featured.paragraphs.map((p) => <p>{p}</p>)}
-    </blockquote>
-    <div class="testimonial-dots" aria-hidden="true">• • • • • • • • • • •</div>
+    <div class="testimonial-swiper swiper">
+      <div class="swiper-wrapper">
+        {section.items.map(({ author, text }) => (
+          <div class="swiper-slide">
+            <blockquote>
+              <p class="testimonial-author">{author}</p>
+              <p>{text}</p>
+            </blockquote>
+          </div>
+        ))}
+      </div>
+      <div class="swiper-pagination"></div>
+      <div class="swiper-button-prev"></div>
+      <div class="swiper-button-next"></div>
+    </div>
   </div>
 </section>
+
+<style is:global>
+  @import 'swiper/css/bundle';
+</style>
+
+<script>
+  import Swiper from 'swiper/bundle';
+
+  new Swiper('.testimonial-swiper', {
+    direction: 'horizontal',
+    loop: true,
+    autoplay: {
+      delay: 6400,
+      disableOnInteraction: true,
+    },
+    slidesPerView: 1,
+    spaceBetween: 50,
+    pagination: {
+      el: '.testimonial-swiper .swiper-pagination',
+      clickable: true,
+    },
+    navigation: {
+      nextEl: '.testimonial-swiper .swiper-button-next',
+      prevEl: '.testimonial-swiper .swiper-button-prev',
+    },
+  });
+</script>