- Add "Explore our other services" block to service landing pages

with colour-tinted cards + Our Pricing entry (grey "All services" pill)
- Wrap homepage Instagram CTA in <aside aria-label="...">
- Always emit og:image:width/height with 1200x630 fallback when
  image metadata is unknown
- Add aria-current="page" to active desktop, mega-menu, and mobile
  nav links (exact-path match only — not "Services" parent)
- Richer testimonial alt text derived from dog name in the detail
  field (e.g. "Archie, a happy Goodwalk dog walking client...")
- Tier sitemap.xml priorities: home 1.0, services 0.9, pricing 0.8,
  about/contact 0.7, legal 0.3 (yearly changefreq)
- Bump to 4.1.0

src/lib/components/TestimonialsSection.svelte

@@ -59,6 +59,18 @@
     activeIndex = 0;
   }
 
+  function dogNameFromDetail(detail: string) {
+    const match = detail.match(/^([^'’]+)/);
+    return match ? match[1].trim() : '';
+  }
+
+  function testimonialAlt(testimonial: TestimonialSlide) {
+    const dog = dogNameFromDetail(testimonial.detail);
+    return dog
+      ? `${dog}, a happy Goodwalk dog walking client in Auckland`
+      : `${testimonial.reviewer}'s dog after a Goodwalk Auckland dog walk`;
+  }
+
   function showPrevious() {
     if (!slides.length) {
       return;
@@ -158,7 +170,7 @@
                     <img
                       class="testimonial-photo"
                       src={testimonial.imageUrl}
-                      alt={`${testimonial.reviewer}'s dog`}
+                      alt={testimonialAlt(testimonial)}
                       width={imageMeta?.width}
                       height={imageMeta?.height}
                       loading="lazy"