v1.2.9: 라이브 에디터·홈 피드·메인 커버 개선

라이브 모드 코드/콜아웃/토글 편집, 슬래시 명령, 홈 Latest List·Compact·Cards 보기,
사이트 설정 메인 화면 커버(720px) 및 HomeHero 반영.

Co-authored-by: Cursor <cursoragent@cursor.com>

components/site/PostCard.vue

@@ -8,16 +8,15 @@ defineProps({
 </script>
 
 <template>
-  <article class="post-card site-section site-panel-hover">
+  <article class="post-card site-section site-panel-hover group">
     <div class="post-card__body site-section-body flex gap-4">
-      <img
-        v-if="post.featuredImage"
-        class="post-card__thumb h-20 w-36 shrink-0 rounded-lg bg-surface object-cover"
-        :src="post.featuredImage"
-        :alt="post.title"
-        loading="lazy"
-      >
-      <div v-else class="post-card__thumb h-20 w-36 shrink-0 rounded-lg bg-[linear-gradient(135deg,#06333a,#f4a261)]" />
+      <PostCardMedia
+        :to="post.to"
+        :title="post.title"
+        :featured-image="post.featuredImage"
+        link-class="h-20 w-36 shrink-0"
+        aspect-class="h-full w-full"
+      />
       <div class="post-card__content min-w-0">
         <h2 class="post-card__title text-base font-semibold leading-tight">
           <NuxtLink class="post-card__title-link site-interactive hover:opacity-70" :to="post.to">