时间线署名去掉硬编码的 @oneblog：登录用户名不该公开展示，作者昵称已能表明身份

frontend/src/components/PostCard.vue

@@ -46,7 +46,6 @@ const gridW = computed(() => (props.post.images && props.post.images.length ===
     <div class="body">
       <div class="byline">
         <span class="author">{{ site.author_name || 'ONE' }}</span>
-        <span class="handle">@oneblog</span>
         <span class="dot">·</span>
         <time :datetime="post.published_at">{{ relativeDate(post.published_at) }}</time>
         <span v-if="isShort" class="kind">短文</span>
@@ -147,7 +146,6 @@ const gridW = computed(() => (props.post.images && props.post.images.length ===
   color: var(--ink);
 }
 
-.handle,
 .dot {
   color: var(--faint);
 }