릴리스: v0.1.22 무제목 저장 규칙과 export 정보 보강

backend/src/db.js

@@ -66,6 +66,9 @@ function mapTierListRow(row) {
   return {
     id: row.id,
     authorId: row.author_id,
+    authorName: getUserDisplayName(row),
+    authorAccountName: getUserAccountName(row),
+    authorAvatarSrc: row.avatar_src || '',
     gameId: row.game_id,
     title: row.title,
     description: row.description || '',
@@ -614,9 +617,23 @@ async function listUserTierLists(userId) {
 async function findTierListById(id) {
   const rows = await query(
     `
-      SELECT id, author_id, game_id, title, description, is_public, groups_json, pool_json, created_at, updated_at
-      FROM tierlists
-      WHERE id = ?
+      SELECT
+        t.id,
+        t.author_id,
+        t.game_id,
+        t.title,
+        t.description,
+        t.is_public,
+        t.groups_json,
+        t.pool_json,
+        t.created_at,
+        t.updated_at,
+        u.nickname,
+        u.email,
+        u.avatar_src
+      FROM tierlists t
+      INNER JOIN users u ON u.id = t.author_id
+      WHERE t.id = ?
       LIMIT 1
     `,
     [id]