长文图片缩放：编辑器拖拽把手的比例在文章页生效（alt 数字还原为宽度并居中）+ 把手默认半透明提高可发现性

frontend/src/views/PostView.vue

@@ -9,7 +9,7 @@ import LinkCard from '../components/LinkCard.vue'
 import { openLightbox } from '../lightbox'
 import { publicApi } from '../api'
 import { site, applyDocTitle } from '../site'
-import { formatDate, minutesLabel, sanitizeHtml } from '../utils'
+import { applyImageRatio, formatDate, minutesLabel, sanitizeHtml } from '../utils'
 
 const route = useRoute()
 const post = ref(null)
@@ -42,7 +42,7 @@ async function load() {
   try {
     post.value = await publicApi.post(route.params.slug)
     const prepared = withHeadingIds(post.value.content_html)
-    contentHtml.value = prepared.html
+    contentHtml.value = applyImageRatio(prepared.html)
     headings.value = prepared.headings
     applyDocTitle(post.value.kind === 'short' ? '短文' : post.value.title)
   } catch (e) {