feat(home/oyez): use the green Oyez! banner graphic instead of text title

Replace the 'oyez.ariege.io' script-text title in the oyez callout with
the brand Oyez! wordmark banner (self-hosted SVG). Sized responsively:
w-5/6 of the column on mobile, filling the column capped at max-w-md
(448px) on desktop.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/views/HomeView.vue

@@ -10,6 +10,7 @@ import heroLandscape from '@/assets/hero-landscape.webp'
 import sectionTile from '@/assets/section-tile.webp'
 import titleWordmark from '@/assets/title-wordmark.mp4'
 import titleWordmarkPoster from '@/assets/title-wordmark-poster.jpg'
+import oyezBanner from '@/assets/oyez-banner-green.svg'
 
 const tileStyle = {
   backgroundImage: `url(${sectionTile})`,
@@ -207,11 +208,11 @@ const featuredEvents = [
         <p class="font-display text-xs uppercase tracking-[0.3em] text-accent">
           {{ t('home.oyez.kicker') }}
         </p>
-        <h2
-          class="mt-4 font-script font-bold text-6xl leading-none text-accent md:text-7xl lg:text-8xl"
-        >
-          {{ t('home.oyez.title') }}
-        </h2>
+        <img
+          :src="oyezBanner"
+          :alt="t('home.oyez.title')"
+          class="mx-auto mt-4 w-5/6 max-w-md md:w-full"
+        />
         <p class="mt-6 text-xs uppercase tracking-[0.2em] text-foreground/80">
           {{ t('home.oyez.subtitle') }}
         </p>