respect aspect ration for works

frontend/src/components/react/PostList.tsx

@@ -128,8 +128,8 @@ export default function PostList({ posts: initialPosts, isAdmin = false }: Props
               aria-label={`View ${displayTitle}`}
             >
               <div
-                className="plate-image"
-                style={{ aspectRatio: layout.aspect }}
+                className={`plate-image ${hasCover ? 'is-natural' : ''}`}
+                style={hasCover ? undefined : { aspectRatio: layout.aspect }}
               >
                 {hasCover ? (
                   <img
@@ -170,8 +170,6 @@ export default function PostList({ posts: initialPosts, isAdmin = false }: Props
                   <span>{formatMonth(post.date)}</span>
                   <span className="plate-caption-sep" aria-hidden="true">·</span>
                   <span>{formatYear(post.date)}</span>
-                  <span className="plate-caption-sep" aria-hidden="true">·</span>
-                  <span>{post.reading_time} min</span>
                 </div>
               </div>
             </a>