예약 발행 기능 추가

server/repositories/content-repository.js

@@ -158,6 +158,10 @@ export const listPosts = async () => {
     LEFT JOIN post_tags ON post_tags.post_id = posts.id
     LEFT JOIN tags ON tags.id = post_tags.tag_id
     WHERE posts.status = 'published'
+      AND (
+        posts.published_at IS NULL
+        OR posts.published_at <= now()
+      )
     GROUP BY posts.id
     ORDER BY posts.published_at DESC NULLS LAST, posts.created_at DESC
   `
@@ -343,6 +347,10 @@ export const getPostBySlug = async (slug) => {
     LEFT JOIN tags ON tags.id = post_tags.tag_id
     WHERE posts.slug = ${slug}
       AND posts.status = 'published'
+      AND (
+        posts.published_at IS NULL
+        OR posts.published_at <= now()
+      )
     GROUP BY posts.id
     LIMIT 1
   `