v1.4.5: 게시물 작성자·편집 링크·목록 요약 보정

- posts.author_id 마이그레이션 및 owner/admin 단일 계정 환경에서만 기존 글 backfill
- 공개 상세: 글쓴이 본인일 때만 공유 옆 수정 링크 표시, 수정 시각 제거
- 목록 요약: excerpt 없을 때 본문 fallback, post-summary-clamp로 말줄임 처리
- 회원 세션 API에 isAdmin·role 추가

pages/post/[slug].vue

@@ -13,9 +13,6 @@ const { data: tags } = await useFetch('/api/tags', {
 const { data: posts } = await useFetch('/api/posts', {
   default: () => []
 })
-const { data: siteSettings } = await useFetch('/api/site-settings', {
-  default: () => ({ showPostUpdatedAt: false })
-})
 
 if (!post.value) {
   throw createError({
@@ -46,16 +43,19 @@ const primaryTagMeta = computed(() => {
 })
 
 const publishedAtLabel = computed(() => formatPostDate(post.value.publishedAt || null))
-const updatedAtLabel = computed(() => {
-  if (!siteSettings.value?.showPostUpdatedAt || !wasPostUpdatedAfterPublish(post.value)) {
-    return ''
-  }
-
-  return `수정: ${formatPostDateTime(post.value.updatedAt)}`
-})
 const authorLabel = computed(() => 'sori.studio')
 const shareModalOpen = ref(false)
 const copyButtonLabel = ref('Copy link')
+const currentMember = ref(null)
+const currentAdmin = ref(null)
+const canEditPost = computed(() => Boolean(
+  post.value?.authorId
+  && (
+    currentMember.value?.id === post.value.authorId
+    || currentAdmin.value?.userId === post.value.authorId
+  )
+))
+const postEditPath = computed(() => `/admin/posts/${post.value.id}`)
 
 const currentIndex = computed(() => posts.value.findIndex((item) => item.slug === post.value.slug))
 const previousPost = computed(() => {
@@ -79,11 +79,12 @@ const config = useRuntimeConfig()
 const siteUrl = computed(() => String(config.public.siteUrl || '').replace(/\/$/g, ''))
 const pageUrl = computed(() => `${siteUrl.value}/post/${post.value.slug}`)
 const seoTitle = computed(() => post.value.seoTitle || post.value.title)
-const seoDescription = computed(() => post.value.seoDescription || post.value.excerpt || 'sori.studio 개인 블로그')
 const ogImage = computed(() => post.value.featuredImage || '')
+const postSummary = computed(() => createPostSummary(post.value.excerpt, post.value.content))
+const seoDescription = computed(() => post.value.seoDescription || postSummary.value || 'sori.studio 개인 블로그')
 const shareMetadata = computed(() => ({
   title: post.value.title || 'sori.studio',
-  description: post.value.excerpt || 'sori.studio 개인 블로그',
+  description: seoDescription.value,
   image: post.value.featuredImage || '',
   url: pageUrl.value
 }))
@@ -120,6 +121,28 @@ const shareLinks = computed(() => [
   }
 ])
 
+/**
+ * 현재 로그인 회원·관리자 정보를 불러온다.
+ * @returns {Promise<void>}
+ */
+const fetchCurrentViewer = async () => {
+  try {
+    currentMember.value = await $fetch('/api/auth/me')
+  } catch {
+    currentMember.value = null
+  }
+
+  try {
+    currentAdmin.value = await $fetch('/admin/api/auth/me')
+  } catch {
+    currentAdmin.value = null
+  }
+}
+
+onMounted(() => {
+  fetchCurrentViewer()
+})
+
 /**
  * 절대 URL 생성
  * @param {string} value - 원본 URL
@@ -244,10 +267,6 @@ useHead(() => ({
               {{ publishedAtLabel }}
             </time>
 
-            <time v-if="updatedAtLabel" :datetime="post.updatedAt" class="admin-post-detail__updated-at">
-              {{ updatedAtLabel }}
-            </time>
-
             <a href="#" class="hover:opacity-75">
               {{ authorLabel }}
             </a>
@@ -272,11 +291,26 @@ useHead(() => ({
             </a>
           </div>
 
-          <button class="absolute right-0 bottom-4 flex cursor-pointer items-center gap-1 hover:opacity-75" type="button" aria-label="Share this post" data-post-share-toggle @click="openShareModal">
-            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-              <path d="M13 4v4c-6.575 1.028-9.02 6.788-10 12c-.037.206 5.384-5.962 10-6v4l8-7-8-7z" />
-            </svg>
-          </button>
+          <div class="absolute right-0 bottom-4 flex items-center gap-3">
+            <NuxtLink
+              v-if="canEditPost"
+              class="flex cursor-pointer items-center gap-1 hover:opacity-75"
+              :to="postEditPath"
+              target="_blank"
+              rel="noreferrer"
+              aria-label="Edit this post"
+              data-post-edit-link
+            >
+              <svg xmlns="http://www.w3.org/2000/svg" height="18" viewBox="0 -960 960 960" width="18" fill="currentColor" aria-hidden="true">
+                <path d="M200-200h57l391-391-57-57-391 391v57Zm-80 80v-170l528-527q12-11 26.5-17t30.5-6q16 0 31 6t26 18l55 56q12 11 17.5 26t5.5 30q0 16-5.5 30.5T817-647L290-120H120Zm640-584-56-56 56 56Zm-141 85-28-29 57 57-29-28Z" />
+              </svg>
+            </NuxtLink>
+            <button class="flex cursor-pointer items-center gap-1 hover:opacity-75" type="button" aria-label="Share this post" data-post-share-toggle @click="openShareModal">
+              <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                <path d="M13 4v4c-6.575 1.028-9.02 6.788-10 12c-.037.206 5.384-5.962 10-6v4l8-7-8-7z" />
+              </svg>
+            </button>
+          </div>
         </div>
 
         <figure v-if="post.featuredImage" class="relative mt-2.5 w-full">