Simplify home page and nav to a single latest-article link

Home now shows only the latest article, pointing to the full list on
/blog instead of duplicating recent articles in a grid. Nav trims to
Home, Tutti gli articoli, and the corralito page; the footer drops the
now-redundant Categorie column.

frontend/app/layouts/default.vue

@@ -1,10 +1,4 @@
 <script setup lang="ts">
-import type { Category } from '#shared/types/blog'
-
-const { data: categories } = await useFetch<Category[]>('/api/categories', {
-  key: 'nav-categories',
-  default: () => [],
-})
 </script>
 
 <template>
@@ -24,12 +18,8 @@ const { data: categories } = await useFetch<Category[]>('/api/categories', {
       <nav class="site-nav" aria-label="Navigazione principale">
         <div class="container nav-inner">
           <ul>
+            <li><NuxtLink to="/">Home</NuxtLink></li>
             <li><NuxtLink to="/blog">Tutti gli articoli</NuxtLink></li>
-            <li v-for="category in categories" :key="category.slug">
-              <NuxtLink :to="`/category/${category.slug}`">
-                {{ category.name }}
-              </NuxtLink>
-            </li>
             <li><NuxtLink to="/come-difendersi-dal-corralito">Come difendersi dal corralito</NuxtLink></li>
           </ul>
         </div>
@@ -51,18 +41,6 @@ const { data: categories } = await useFetch<Category[]>('/api/categories', {
           </address>
         </div>
 
-        <nav class="footer-block" aria-label="Categorie">
-          <p class="kicker">Categorie</p>
-          <ul>
-            <li v-for="category in categories" :key="category.slug">
-              <NuxtLink :to="`/category/${category.slug}`">
-                {{ category.name }}
-              </NuxtLink>
-            </li>
-            <li v-if="!categories.length" class="muted">Ancora nessuna pubblicazione</li>
-          </ul>
-        </nav>
-
         <nav class="footer-block" aria-label="Naviga">
           <p class="kicker">Naviga</p>
           <ul>

frontend/app/pages/index.vue

@@ -6,9 +6,7 @@ const { data, error } = await useFetch<Paginated<ArticleSummary>>('/api/articles
   query: { page: 1 },
 })
 
-/** The newest article leads the page; the next six fill the grid below it. */
 const featured = computed(() => data.value?.items[0] ?? null)
-const rest = computed(() => data.value?.items.slice(1, 7) ?? [])
 
 const mediaUrl = useMediaUrl()
 const featuredCover = computed(() => mediaUrl(featured.value?.cover))
@@ -66,9 +64,6 @@ useSeoMeta({
           Le monete fiduciarie sono per loro natura cannibalizzanti. Oggi tocca all'euro.
           Anche perché le altre hanno praticamente perso tutte tutto.
         </p>
-        <p class="landing-cta">
-          <NuxtLink to="/come-difendersi-dal-corralito">Come difendersi dal corralito</NuxtLink>
-        </p>
       </div>
     </section>
 
@@ -113,16 +108,6 @@ useSeoMeta({
         </div>
       </article>
 
-      <template v-if="rest.length">
-        <h2 class="section-heading kicker">Altri articoli</h2>
-
-        <ul class="card-grid">
-          <li v-for="article in rest" :key="article.slug">
-            <ArticleCard :article="article" />
-          </li>
-        </ul>
-      </template>
-
       <p class="more">
         <NuxtLink to="/blog">Vedi tutti gli articoli</NuxtLink>
       </p>
@@ -161,29 +146,6 @@ useSeoMeta({
   margin-top: 1.1rem;
 }
 
-.landing-cta {
-  margin-top: 1.75rem;
-  text-align: center;
-  font-size: 0.75rem;
-  font-weight: 600;
-  letter-spacing: 0.14em;
-  text-transform: uppercase;
-}
-
-.landing-cta a {
-  padding: 0.85rem 2.5rem;
-  text-decoration: none;
-  border: 1px solid var(--color-ink);
-  color: var(--color-ink);
-  display: inline-block;
-  transition: background 0.2s ease, color 0.2s ease;
-}
-
-.landing-cta a:hover {
-  background: var(--color-ink);
-  color: var(--color-bg);
-}
-
 .featured {
   display: grid;
   gap: 1.5rem;