릴리스: v1.3.5 이미지 최적화 대시보드 기간 필터와 실사용 통계

관리자 이미지 최적화 대시보드 추가
미사용 이미지 자산 정리 배치 추가
2026-03-31 18:23:06 +09:00 · 2026-03-31 17:58:21 +09:00 · 2026-03-31 17:50:11 +09:00 · 2026-03-31 17:44:03 +09:00 · 2026-03-31 17:39:54 +09:00 · 2026-03-31 17:33:52 +09:00
17 changed files with 2656 additions and 427 deletions
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -17,12 +17,488 @@
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+    },
    "node_modules/@types/node": {
      "version": "25.5.0",
      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.5.0.tgz",
@@ -368,6 +844,15 @@
        "node": ">= 0.8"
      }
    },
+    "node_modules/detect-libc": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
+      "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/dunder-proto": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -1381,7 +1866,6 @@
      "version": "7.7.4",
      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.4.tgz",
      "integrity": "sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==",
-      "dev": true,
      "license": "ISC",
      "bin": {
        "semver": "bin/semver.js"
@@ -1458,6 +1942,50 @@
      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
      "license": "ISC"
    },
+    "node_modules/sharp": {
+      "version": "0.34.5",
+      "resolved": "https://registry.npmjs.org/sharp/-/sharp-0.34.5.tgz",
+      "integrity": "sha512-Ou9I5Ft9WNcCbXrU9cMgPBcCK8LiwLqcbywW3t4oDV37n1pzpuNLsYiAV8eODnjbtQlSDwZ2cUEeQz4E54Hltg==",
+      "hasInstallScript": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@img/colour": "^1.0.0",
+        "detect-libc": "^2.1.2",
+        "semver": "^7.7.3"
+      },
+      "engines": {
+        "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/libvips"
+      },
+      "optionalDependencies": {
+        "@img/sharp-darwin-arm64": "0.34.5",
+        "@img/sharp-darwin-x64": "0.34.5",
+        "@img/sharp-libvips-darwin-arm64": "1.2.4",
+        "@img/sharp-libvips-darwin-x64": "1.2.4",
+        "@img/sharp-libvips-linux-arm": "1.2.4",
+        "@img/sharp-libvips-linux-arm64": "1.2.4",
+        "@img/sharp-libvips-linux-ppc64": "1.2.4",
+        "@img/sharp-libvips-linux-riscv64": "1.2.4",
+        "@img/sharp-libvips-linux-s390x": "1.2.4",
+        "@img/sharp-libvips-linux-x64": "1.2.4",
+        "@img/sharp-libvips-linuxmusl-arm64": "1.2.4",
+        "@img/sharp-libvips-linuxmusl-x64": "1.2.4",
+        "@img/sharp-linux-arm": "0.34.5",
+        "@img/sharp-linux-arm64": "0.34.5",
+        "@img/sharp-linux-ppc64": "0.34.5",
+        "@img/sharp-linux-riscv64": "0.34.5",
+        "@img/sharp-linux-s390x": "0.34.5",
+        "@img/sharp-linux-x64": "0.34.5",
+        "@img/sharp-linuxmusl-arm64": "0.34.5",
+        "@img/sharp-linuxmusl-x64": "0.34.5",
+        "@img/sharp-wasm32": "0.34.5",
+        "@img/sharp-win32-arm64": "0.34.5",
+        "@img/sharp-win32-ia32": "0.34.5",
+        "@img/sharp-win32-x64": "0.34.5"
+      }
+    },
    "node_modules/side-channel": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
@@ -1635,6 +2163,13 @@
        "nodetouch": "bin/nodetouch.js"
      }
    },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "license": "0BSD",
+      "optional": true
+    },
    "node_modules/type-is": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
--- a/backend/package.json
+++ b/backend/package.json
@@ -20,6 +20,7 @@
    "mysql2": "^3.20.0",
    "nanoid": "^5.1.7",
    "session-file-store": "^1.5.0",
+    "sharp": "^0.34.5",
    "zod": "^4.3.6"
  },
  "devDependencies": {
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -1,3 +1,5 @@
+const fs = require('fs/promises')
+const path = require('path')
 const mysql = require('mysql2/promise')

 const DB_HOST = process.env.DB_HOST || '127.0.0.1'
@@ -28,6 +30,29 @@ function serializeJson(value) {
  return JSON.stringify(value || [])
 }

+function collectUploadSrcsFromItems(items, bucket) {
+  for (const item of items || []) {
+    if (typeof item?.src === 'string' && item.src.startsWith('/uploads/')) {
+      bucket.add(item.src)
+    }
+  }
+}
+
+function resolveMonthRange(month) {
+  if (typeof month !== 'string') return null
+  const match = month.trim().match(/^(\d{4})-(\d{2})$/)
+  if (!match) return null
+
+  const year = Number(match[1])
+  const monthIndex = Number(match[2]) - 1
+  if (!Number.isInteger(year) || monthIndex < 0 || monthIndex > 11) return null
+
+  return {
+    start: new Date(year, monthIndex, 1).getTime(),
+    end: new Date(year, monthIndex + 1, 1).getTime(),
+  }
+}
+
 function mapUserRow(row) {
  if (!row) return null
  return {
@@ -64,6 +89,37 @@ function mapGameItemRow(row) {
  }
 }

+function mapImageAssetRow(row) {
+  if (!row) return null
+  return {
+    id: row.id,
+    contentHash: row.content_hash,
+    src: row.src || '',
+    mimeType: row.mime_type || 'image/webp',
+    byteSize: Number(row.byte_size || 0),
+    originalByteSize: Number(row.original_byte_size || 0),
+    width: Number(row.width || 0),
+    height: Number(row.height || 0),
+    createdAt: Number(row.created_at || 0),
+  }
+}
+
+function mapImageOptimizationJobRow(row) {
+  if (!row) return null
+  return {
+    id: row.id,
+    status: row.status,
+    sourceCategory: row.source_category || '',
+    targetDirectory: row.target_directory || '',
+    originalByteSize: Number(row.original_byte_size || 0),
+    optimizedByteSize: Number(row.optimized_byte_size || 0),
+    reusedAsset: !!row.reused_asset,
+    errorMessage: row.error_message || '',
+    queuedAt: Number(row.queued_at || 0),
+    startedAt: Number(row.started_at || 0),
+    finishedAt: Number(row.finished_at || 0),
+  }
+}
 function mapTierListRow(row) {
  if (!row) return null
  return {
@@ -79,6 +135,9 @@ function mapTierListRow(row) {
    description: row.description || '',
    isPublic: !!row.is_public,
    showCharacterNames: !!row.show_character_names,
+    sourceTierListId: row.source_tierlist_id || '',
+    sourceSnapshotTitle: row.source_snapshot_title || '',
+    sourceSnapshotAuthor: row.source_snapshot_author || '',
    groups: parseJson(row.groups_json, []),
    pool: parseJson(row.pool_json, []),
    createdAt: Number(row.created_at),
@@ -228,6 +287,9 @@ async function ensureSchema() {
        description TEXT NOT NULL,
        is_public TINYINT(1) NOT NULL DEFAULT 0,
        show_character_names TINYINT(1) NOT NULL DEFAULT 0,
+        source_tierlist_id VARCHAR(64) NULL DEFAULT NULL,
+        source_snapshot_title VARCHAR(120) NOT NULL DEFAULT '',
+        source_snapshot_author VARCHAR(120) NOT NULL DEFAULT '',
        groups_json LONGTEXT NOT NULL,
        pool_json LONGTEXT NOT NULL,
        created_at BIGINT NOT NULL,
@@ -252,6 +314,50 @@ async function ensureSchema() {
      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
    `)

+    await query(`
+      CREATE TABLE IF NOT EXISTS favorite_games (
+        user_id VARCHAR(64) NOT NULL,
+        game_id VARCHAR(120) NOT NULL,
+        created_at BIGINT NOT NULL,
+        PRIMARY KEY (user_id, game_id),
+        INDEX idx_favorite_games_game_id (game_id),
+        CONSTRAINT fk_favorite_games_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+        CONSTRAINT fk_favorite_games_game FOREIGN KEY (game_id) REFERENCES games(id) ON DELETE CASCADE
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+    `)
+
+    await query(`
+      CREATE TABLE IF NOT EXISTS image_assets (
+        id VARCHAR(64) PRIMARY KEY,
+        content_hash CHAR(64) NOT NULL UNIQUE,
+        src VARCHAR(255) NOT NULL UNIQUE,
+        mime_type VARCHAR(32) NOT NULL DEFAULT 'image/webp',
+        byte_size INT UNSIGNED NOT NULL,
+        original_byte_size INT UNSIGNED NOT NULL,
+        width INT UNSIGNED NOT NULL DEFAULT 0,
+        height INT UNSIGNED NOT NULL DEFAULT 0,
+        created_at BIGINT NOT NULL,
+        INDEX idx_image_assets_created_at (created_at)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+    `)
+
+    await query(`
+      CREATE TABLE IF NOT EXISTS image_optimization_jobs (
+        id VARCHAR(64) PRIMARY KEY,
+        status VARCHAR(20) NOT NULL DEFAULT 'queued',
+        source_category VARCHAR(40) NOT NULL DEFAULT '',
+        target_directory VARCHAR(40) NOT NULL DEFAULT '',
+        original_byte_size INT UNSIGNED NOT NULL DEFAULT 0,
+        optimized_byte_size INT UNSIGNED NOT NULL DEFAULT 0,
+        reused_asset TINYINT(1) NOT NULL DEFAULT 0,
+        error_message VARCHAR(255) NOT NULL DEFAULT '',
+        queued_at BIGINT NOT NULL,
+        started_at BIGINT NOT NULL DEFAULT 0,
+        finished_at BIGINT NOT NULL DEFAULT 0,
+        INDEX idx_image_optimization_jobs_status_queued (status, queued_at),
+        INDEX idx_image_optimization_jobs_finished_at (finished_at)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+    `)
    await query(`
      CREATE TABLE IF NOT EXISTS template_requests (
        id VARCHAR(64) PRIMARY KEY,
@@ -283,6 +389,18 @@ async function ensureSchema() {
    if (!tierListShowNamesColumns.length) {
      await query("ALTER TABLE tierlists ADD COLUMN show_character_names TINYINT(1) NOT NULL DEFAULT 0 AFTER is_public")
    }
+    const tierListSourceIdColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_tierlist_id'")
+    if (!tierListSourceIdColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_tierlist_id VARCHAR(64) NULL DEFAULT NULL AFTER show_character_names")
+    }
+    const tierListSourceTitleColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_snapshot_title'")
+    if (!tierListSourceTitleColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_snapshot_title VARCHAR(120) NOT NULL DEFAULT '' AFTER source_tierlist_id")
+    }
+    const tierListSourceAuthorColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_snapshot_author'")
+    if (!tierListSourceAuthorColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_snapshot_author VARCHAR(120) NOT NULL DEFAULT '' AFTER source_snapshot_title")
+    }

    await query(
      `
@@ -431,7 +549,7 @@ async function adminDeleteUser(id) {
  await query('DELETE FROM users WHERE id = ?', [id])
 }

-async function listGames() {
+async function listGames(currentUserId = '') {
  const rows = await query(
    `
      SELECT id, name, thumbnail_src, display_rank, created_at
@@ -445,7 +563,15 @@ async function listGames() {
    `,
    [FREEFORM_GAME_ID]
  )
-  return rows.map(mapGameRow)
+  const games = rows.map(mapGameRow)
+  if (!currentUserId) return games.map((game) => ({ ...game, isFavorited: false }))
+
+  const favoriteRows = await query('SELECT game_id FROM favorite_games WHERE user_id = ?', [currentUserId])
+  const favoriteSet = new Set(favoriteRows.map((row) => row.game_id))
+  return games.map((game) => ({
+    ...game,
+    isFavorited: favoriteSet.has(game.id),
+  }))
 }

 async function findGameById(id) {
@@ -484,6 +610,275 @@ async function updateGameThumbnail(gameId, thumbnailSrc) {
  return findGameById(gameId)
 }

+async function findImageAssetByHash(contentHash) {
+  const rows = await query(
+    'SELECT id, content_hash, src, mime_type, byte_size, original_byte_size, width, height, created_at FROM image_assets WHERE content_hash = ? LIMIT 1',
+    [contentHash]
+  )
+  return mapImageAssetRow(rows[0])
+}
+
+async function createImageAsset({ id, contentHash, src, mimeType = "image/webp", byteSize, originalByteSize, width, height }) {
+  const createdAt = now()
+  await query(
+    'INSERT INTO image_assets (id, content_hash, src, mime_type, byte_size, original_byte_size, width, height, created_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)',
+    [id, contentHash, src, mimeType, byteSize, originalByteSize, width, height, createdAt]
+  )
+  return findImageAssetByHash(contentHash)
+}
+
+async function createImageOptimizationJob({ id, sourceCategory, targetDirectory, originalByteSize }) {
+  const queuedAt = now()
+  await query(
+    'INSERT INTO image_optimization_jobs (id, status, source_category, target_directory, original_byte_size, optimized_byte_size, reused_asset, error_message, queued_at, started_at, finished_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
+    [id, 'queued', sourceCategory || '', targetDirectory || '', originalByteSize || 0, 0, 0, '', queuedAt, 0, 0]
+  )
+  return findImageOptimizationJobById(id)
+}
+
+async function findImageOptimizationJobById(id) {
+  const rows = await query(
+    'SELECT id, status, source_category, target_directory, original_byte_size, optimized_byte_size, reused_asset, error_message, queued_at, started_at, finished_at FROM image_optimization_jobs WHERE id = ? LIMIT 1',
+    [id]
+  )
+  return mapImageOptimizationJobRow(rows[0])
+}
+
+async function updateImageOptimizationJobStatus({ id, status, optimizedByteSize = 0, reusedAsset = false, errorMessage = '', startedAt, finishedAt }) {
+  const fields = ['status = ?', 'optimized_byte_size = ?', 'reused_asset = ?', 'error_message = ?']
+  const params = [status, optimizedByteSize, reusedAsset ? 1 : 0, errorMessage.slice(0, 255)]
+
+  if (typeof startedAt === 'number') {
+    fields.push('started_at = ?')
+    params.push(startedAt)
+  }
+  if (typeof finishedAt === 'number') {
+    fields.push('finished_at = ?')
+    params.push(finishedAt)
+  }
+
+  params.push(id)
+  await query(`UPDATE image_optimization_jobs SET ${fields.join(', ')} WHERE id = ?`, params)
+  return findImageOptimizationJobById(id)
+}
+
+async function listRecentImageOptimizationJobs(limit = 20, { month } = {}) {
+  const safeLimit = Math.max(1, Math.min(100, Number(limit) || 20))
+  const range = resolveMonthRange(month)
+  const where = []
+  const params = []
+
+  if (range) {
+    where.push('queued_at >= ? AND queued_at < ?')
+    params.push(range.start, range.end)
+  }
+
+  const rows = await query(
+    `SELECT id, status, source_category, target_directory, original_byte_size, optimized_byte_size, reused_asset, error_message, queued_at, started_at, finished_at
+     FROM image_optimization_jobs
+     ${where.length ? `WHERE ${where.join(' AND ')}` : ''}
+     ORDER BY queued_at DESC
+     LIMIT ${safeLimit}`,
+    params
+  )
+  return rows.map(mapImageOptimizationJobRow)
+}
+
+async function listUnusedImageAssets({ limit = 100, minAgeHours = 24 } = {}) {
+  const safeLimit = Math.max(1, Math.min(500, Number(limit) || 100))
+  const safeMinAgeHours = Math.max(0, Number(minAgeHours) || 24)
+  const cutoff = now() - safeMinAgeHours * 60 * 60 * 1000
+
+  const assets = (await query(
+    `SELECT id, content_hash, src, mime_type, byte_size, original_byte_size, width, height, created_at FROM image_assets WHERE created_at <= ? ORDER BY created_at ASC LIMIT ${safeLimit}`,
+    [cutoff]
+  )).map(mapImageAssetRow)
+
+  if (!assets.length) return []
+
+  const referencedSrcs = new Set()
+
+  const [userRows, gameRows, gameItemRows, customItemRows, tierListRows, templateRequestRows] = await Promise.all([
+    query("SELECT avatar_src FROM users WHERE avatar_src <> ''"),
+    query("SELECT thumbnail_src FROM games WHERE thumbnail_src <> ''"),
+    query("SELECT src FROM game_items WHERE src <> ''"),
+    query("SELECT src FROM custom_items WHERE src <> ''"),
+    query("SELECT thumbnail_src, pool_json FROM tierlists"),
+    query("SELECT thumbnail_src_snapshot, items_json FROM template_requests"),
+  ])
+
+  for (const row of userRows) if (row.avatar_src) referencedSrcs.add(row.avatar_src)
+  for (const row of gameRows) if (row.thumbnail_src) referencedSrcs.add(row.thumbnail_src)
+  for (const row of gameItemRows) if (row.src) referencedSrcs.add(row.src)
+  for (const row of customItemRows) if (row.src) referencedSrcs.add(row.src)
+
+  for (const row of tierListRows) {
+    if (row.thumbnail_src) referencedSrcs.add(row.thumbnail_src)
+    collectUploadSrcsFromItems(parseJson(row.pool_json, []), referencedSrcs)
+  }
+
+  for (const row of templateRequestRows) {
+    if (row.thumbnail_src_snapshot) referencedSrcs.add(row.thumbnail_src_snapshot)
+    collectUploadSrcsFromItems(parseJson(row.items_json, []), referencedSrcs)
+  }
+
+  return assets.filter((asset) => !referencedSrcs.has(asset.src))
+}
+
+async function deleteImageAssets(ids) {
+  const uniqueIds = Array.from(new Set((ids || []).filter(Boolean)))
+  if (!uniqueIds.length) return []
+  const placeholders = uniqueIds.map(() => '?').join(', ')
+  const rows = await query(
+    `SELECT id, content_hash, src, mime_type, byte_size, original_byte_size, width, height, created_at FROM image_assets WHERE id IN (${placeholders})`,
+    uniqueIds
+  )
+  await query(`DELETE FROM image_assets WHERE id IN (${placeholders})`, uniqueIds)
+  return rows.map(mapImageAssetRow)
+}
+
+async function listReferencedUploadSources() {
+  const referencedSrcs = new Set()
+  const [userRows, gameRows, gameItemRows, customItemRows, tierListRows, templateRequestRows] = await Promise.all([
+    query("SELECT avatar_src FROM users WHERE avatar_src <> ''"),
+    query("SELECT thumbnail_src FROM games WHERE thumbnail_src <> ''"),
+    query("SELECT src FROM game_items WHERE src <> ''"),
+    query("SELECT src FROM custom_items WHERE src <> ''"),
+    query("SELECT thumbnail_src, pool_json FROM tierlists"),
+    query("SELECT thumbnail_src_snapshot, items_json FROM template_requests"),
+  ])
+
+  for (const row of userRows) if (row.avatar_src) referencedSrcs.add(row.avatar_src)
+  for (const row of gameRows) if (row.thumbnail_src) referencedSrcs.add(row.thumbnail_src)
+  for (const row of gameItemRows) if (row.src) referencedSrcs.add(row.src)
+  for (const row of customItemRows) if (row.src) referencedSrcs.add(row.src)
+
+  for (const row of tierListRows) {
+    if (row.thumbnail_src) referencedSrcs.add(row.thumbnail_src)
+    collectUploadSrcsFromItems(parseJson(row.pool_json, []), referencedSrcs)
+  }
+
+  for (const row of templateRequestRows) {
+    if (row.thumbnail_src_snapshot) referencedSrcs.add(row.thumbnail_src_snapshot)
+    collectUploadSrcsFromItems(parseJson(row.items_json, []), referencedSrcs)
+  }
+
+  return Array.from(referencedSrcs)
+}
+
+async function listImageAssets() {
+  const rows = await query(
+    'SELECT id, content_hash, src, mime_type, byte_size, original_byte_size, width, height, created_at FROM image_assets ORDER BY created_at DESC'
+  )
+  return rows.map(mapImageAssetRow)
+}
+
+async function getReferencedUploadFootprint() {
+  const [referencedSrcs, assets] = await Promise.all([listReferencedUploadSources(), listImageAssets()])
+  const assetMap = new Map(assets.map((asset) => [asset.src, asset]))
+  let totalReferencedByteSize = 0
+  let trackedReferencedByteSize = 0
+  let legacyReferencedByteSize = 0
+  let trackedReferencedCount = 0
+  let legacyReferencedCount = 0
+  let missingCount = 0
+
+  for (const src of referencedSrcs) {
+    if (typeof src !== 'string' || !src.startsWith('/uploads/')) continue
+    const absolutePath = path.join(__dirname, '..', src.replace(/^\//, ''))
+
+    try {
+      const stat = await fs.stat(absolutePath)
+      const size = Number(stat.size || 0)
+      totalReferencedByteSize += size
+      if (assetMap.has(src)) {
+        trackedReferencedCount += 1
+        trackedReferencedByteSize += size
+      } else {
+        legacyReferencedCount += 1
+        legacyReferencedByteSize += size
+      }
+    } catch (error) {
+      if (error?.code === 'ENOENT') missingCount += 1
+    }
+  }
+
+  return {
+    referencedCount: referencedSrcs.length,
+    totalReferencedByteSize,
+    trackedReferencedCount,
+    trackedReferencedByteSize,
+    legacyReferencedCount,
+    legacyReferencedByteSize,
+    missingCount,
+  }
+}
+
+async function getImageAssetStats({ month } = {}) {
+  const range = resolveMonthRange(month)
+  const jobWhere = []
+  const jobParams = []
+
+  if (range) {
+    jobWhere.push('queued_at >= ? AND queued_at < ?')
+    jobParams.push(range.start, range.end)
+  }
+
+  const [assetRows, jobRows, footprint] = await Promise.all([
+    query(
+      `SELECT COUNT(*) AS asset_count, COALESCE(SUM(byte_size), 0) AS total_byte_size, COALESCE(SUM(original_byte_size), 0) AS total_original_byte_size FROM image_assets`
+    ),
+    query(
+      `SELECT
+        COALESCE(SUM(CASE WHEN status = 'queued' THEN 1 ELSE 0 END), 0) AS queued_count,
+        COALESCE(SUM(CASE WHEN status = 'processing' THEN 1 ELSE 0 END), 0) AS processing_count,
+        COALESCE(SUM(CASE WHEN status = 'completed' THEN 1 ELSE 0 END), 0) AS completed_count,
+        COALESCE(SUM(CASE WHEN status = 'failed' THEN 1 ELSE 0 END), 0) AS failed_count,
+        COALESCE(SUM(CASE WHEN status = 'completed' AND reused_asset = 1 THEN 1 ELSE 0 END), 0) AS reused_count
+       FROM image_optimization_jobs
+       ${jobWhere.length ? `WHERE ${jobWhere.join(' AND ')}` : ''}`,
+      jobParams
+    ),
+    getReferencedUploadFootprint(),
+  ])
+
+  const asset = assetRows[0] || {}
+  const jobs = jobRows[0] || {}
+  const totalByteSize = Number(asset.total_byte_size || 0)
+  const totalOriginalByteSize = Number(asset.total_original_byte_size || 0)
+  const savedByteSize = Math.max(0, totalOriginalByteSize - totalByteSize)
+
+  return {
+    assetCount: Number(asset.asset_count || 0),
+    totalByteSize,
+    totalOriginalByteSize,
+    savedByteSize,
+    savingsRatio: totalOriginalByteSize > 0 ? savedByteSize / totalOriginalByteSize : 0,
+    referencedCount: Number(footprint.referencedCount || 0),
+    referencedByteSize: Number(footprint.totalReferencedByteSize || 0),
+    trackedReferencedCount: Number(footprint.trackedReferencedCount || 0),
+    trackedReferencedByteSize: Number(footprint.trackedReferencedByteSize || 0),
+    legacyReferencedCount: Number(footprint.legacyReferencedCount || 0),
+    legacyReferencedByteSize: Number(footprint.legacyReferencedByteSize || 0),
+    missingReferencedCount: Number(footprint.missingCount || 0),
+    queuedCount: Number(jobs.queued_count || 0),
+    processingCount: Number(jobs.processing_count || 0),
+    completedCount: Number(jobs.completed_count || 0),
+    failedCount: Number(jobs.failed_count || 0),
+    reusedCount: Number(jobs.reused_count || 0),
+  }
+}
+
+async function clearImageOptimizationJobs({ month } = {}) {
+  const range = resolveMonthRange(month)
+  if (range) {
+    const result = await query('DELETE FROM image_optimization_jobs WHERE queued_at >= ? AND queued_at < ?', [range.start, range.end])
+    return Number(result.affectedRows || 0)
+  }
+
+  const result = await query('DELETE FROM image_optimization_jobs')
+  return Number(result.affectedRows || 0)
+}
 async function createGameItem({ id, gameId, src, label }) {
  const createdAt = now()
  await query('INSERT INTO game_items (id, game_id, src, label, created_at) VALUES (?, ?, ?, ?, ?)', [
@@ -605,28 +1000,51 @@ async function findCustomItemById(id) {
  }
 }

-async function getCustomItemUsageMap() {
-  const rows = await query('SELECT groups_json, pool_json FROM tierlists')
+async function getCustomItemUsageMeta() {
+  const rows = await query(
+    `
+      SELECT t.game_id, g.name AS game_name, t.groups_json, t.pool_json
+      FROM tierlists t
+      LEFT JOIN games g ON g.id = t.game_id
+    `
+  )
  const usageMap = new Map()
+  const linkedGamesMap = new Map()

  rows.forEach((row) => {
    const groups = parseJson(row.groups_json, [])
    const pool = parseJson(row.pool_json, [])
+    const seenItemIds = new Set()

    groups.forEach((group) => {
      ;(group?.itemIds || []).forEach((itemId) => {
        usageMap.set(itemId, (usageMap.get(itemId) || 0) + 1)
+        if (itemId) seenItemIds.add(itemId)
      })
    })

    pool.forEach((item) => {
      if (item?.id) {
        usageMap.set(item.id, (usageMap.get(item.id) || 0) + 1)
+        seenItemIds.add(item.id)
      }
    })
+
+    if (!row.game_id) return
+
+    seenItemIds.forEach((itemId) => {
+      if (!linkedGamesMap.has(itemId)) linkedGamesMap.set(itemId, new Map())
+      linkedGamesMap.get(itemId).set(row.game_id, {
+        id: row.game_id,
+        name: row.game_name || row.game_id,
+      })
+    })
  })

-  return usageMap
+  return {
+    usageMap,
+    linkedGamesMap: new Map(Array.from(linkedGamesMap.entries()).map(([itemId, gameMap]) => [itemId, Array.from(gameMap.values())])),
+  }
 }

 async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnly = false } = {}) {
@@ -655,7 +1073,7 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnl
    params
  )

-  const usageMap = await getCustomItemUsageMap()
+  const { usageMap, linkedGamesMap } = await getCustomItemUsageMeta()
  const allItems = rows
    .map((row) => ({
      id: row.id,
@@ -666,6 +1084,7 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnl
      ownerName: row.nickname || row.email,
      ownerEmail: row.email,
      usageCount: usageMap.get(row.id) || 0,
+      linkedGames: linkedGamesMap.get(row.id) || [],
    }))
    .filter((item) => (orphanOnly ? item.usageCount === 0 : true))

@@ -705,7 +1124,7 @@ async function findUnusedCustomItems({ queryText = '' } = {}) {
    params
  )

-  const usageMap = await getCustomItemUsageMap()
+  const { usageMap } = await getCustomItemUsageMeta()
  return rows
    .map((row) => ({
      id: row.id,
@@ -850,6 +1269,9 @@ async function listFavoriteTierLists(userId, { queryText = '', sort = 'favorited
        t.description,
        t.is_public,
        t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
        t.groups_json,
        t.pool_json,
        t.created_at,
@@ -980,6 +1402,9 @@ async function listAdminTierLists({ queryText = '', page = 1, limit = 50, curren
        t.description,
        t.is_public,
        t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
        t.groups_json,
        t.pool_json,
        t.created_at,
@@ -1036,6 +1461,9 @@ async function findTierListById(id, currentUserId = '') {
        t.description,
        t.is_public,
        t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
        t.groups_json,
        t.pool_json,
        t.created_at,
@@ -1233,7 +1661,21 @@ async function deleteCustomItems(ids) {
  await query(`DELETE FROM custom_items WHERE id IN (${placeholders})`, ids)
 }

-async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', description, isPublic, showCharacterNames = false, groups, pool }) {
+async function saveTierList({
+  id,
+  authorId,
+  gameId,
+  title,
+  thumbnailSrc = '',
+  description,
+  isPublic,
+  showCharacterNames = false,
+  sourceTierListId = '',
+  sourceSnapshotTitle = '',
+  sourceSnapshotAuthor = '',
+  groups,
+  pool,
+}) {
  const existing = id ? await findTierListById(id, authorId) : null
  await syncOwnedCustomItemLabels({ ownerId: authorId, items: pool })
  const nextThumbnailSrc = (thumbnailSrc || '').trim() || getAutoThumbnailSrc(groups, pool)
@@ -1242,10 +1684,10 @@ async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', de
    await query(
      `
        UPDATE tierlists
-        SET title = ?, thumbnail_src = ?, description = ?, is_public = ?, show_character_names = ?, groups_json = ?, pool_json = ?, updated_at = ?
+        SET title = ?, thumbnail_src = ?, description = ?, is_public = ?, show_character_names = ?, source_tierlist_id = ?, source_snapshot_title = ?, source_snapshot_author = ?, groups_json = ?, pool_json = ?, updated_at = ?
        WHERE id = ?
      `,
-      [title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, serializeJson(groups), serializeJson(pool), now(), existing.id]
+      [title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, sourceTierListId || null, sourceSnapshotTitle || '', sourceSnapshotAuthor || '', serializeJson(groups), serializeJson(pool), now(), existing.id]
    )
    return findTierListById(existing.id, authorId)
  }
@@ -1254,15 +1696,37 @@ async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', de
  await query(
    `
      INSERT INTO tierlists (
-        id, author_id, game_id, title, thumbnail_src, description, is_public, show_character_names, groups_json, pool_json, created_at, updated_at
+        id, author_id, game_id, title, thumbnail_src, description, is_public, show_character_names, source_tierlist_id, source_snapshot_title, source_snapshot_author, groups_json, pool_json, created_at, updated_at
      )
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
    `,
-    [id, authorId, gameId, title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, serializeJson(groups), serializeJson(pool), createdAt, createdAt]
+    [id, authorId, gameId, title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, sourceTierListId || null, sourceSnapshotTitle || '', sourceSnapshotAuthor || '', serializeJson(groups), serializeJson(pool), createdAt, createdAt]
  )
  return findTierListById(id, authorId)
 }

+async function duplicateTierListForUser({ tierList, targetUserId }) {
+  const { nanoid } = require('nanoid')
+  const duplicateId = nanoid()
+  const baseTitle = (tierList.title || '티어표').trim() || '티어표'
+  const copyTitle = baseTitle.endsWith(' 복사본') ? baseTitle : `${baseTitle} 복사본`
+  return saveTierList({
+    id: duplicateId,
+    authorId: targetUserId,
+    gameId: tierList.gameId,
+    title: copyTitle,
+    thumbnailSrc: tierList.thumbnailSrc || '',
+    description: tierList.description || '',
+    isPublic: false,
+    showCharacterNames: !!tierList.showCharacterNames,
+    sourceTierListId: tierList.id,
+    sourceSnapshotTitle: tierList.title || '',
+    sourceSnapshotAuthor: tierList.authorName || tierList.authorAccountName || '',
+    groups: JSON.parse(JSON.stringify(tierList.groups || [])),
+    pool: JSON.parse(JSON.stringify(tierList.pool || [])),
+  })
+}
+
 async function favoriteTierList({ userId, tierListId }) {
  await query('INSERT IGNORE INTO favorite_tierlists (user_id, tierlist_id, created_at) VALUES (?, ?, ?)', [userId, tierListId, now()])
 }
@@ -1271,6 +1735,14 @@ async function unfavoriteTierList({ userId, tierListId }) {
  await query('DELETE FROM favorite_tierlists WHERE user_id = ? AND tierlist_id = ?', [userId, tierListId])
 }

+async function favoriteGame({ userId, gameId }) {
+  await query('INSERT IGNORE INTO favorite_games (user_id, game_id, created_at) VALUES (?, ?, ?)', [userId, gameId, now()])
+}
+
+async function unfavoriteGame({ userId, gameId }) {
+  await query('DELETE FROM favorite_games WHERE user_id = ? AND game_id = ?', [userId, gameId])
+}
+
 module.exports = {
  DB_NAME,
  ensureData,
@@ -1289,6 +1761,17 @@ module.exports = {
  getGameDetail,
  createGame,
  updateGameThumbnail,
+  findImageAssetByHash,
+  createImageAsset,
+  createImageOptimizationJob,
+  findImageOptimizationJobById,
+  updateImageOptimizationJobStatus,
+  listRecentImageOptimizationJobs,
+  listUnusedImageAssets,
+  deleteImageAssets,
+  listReferencedUploadSources,
+  clearImageOptimizationJobs,
+  getImageAssetStats,
  createGameItem,
  updateGameItemLabel,
  deleteGameItem,
@@ -1305,10 +1788,13 @@ module.exports = {
  findTierListById,
  favoriteTierList,
  unfavoriteTierList,
+  favoriteGame,
+  unfavoriteGame,
  deleteTierList,
  findCustomItemsByIds,
  deleteCustomItems,
  saveTierList,
+  duplicateTierListForUser,
  createTemplateRequest,
  findTemplateRequestById,
  listAdminTemplateRequests,
--- a/backend/src/lib/image-storage.js
+++ b/backend/src/lib/image-storage.js
@@ -0,0 +1,218 @@
+const fs = require('fs/promises')
+const path = require('path')
+const crypto = require('crypto')
+const sharp = require('sharp')
+const { nanoid } = require('nanoid')
+const {
+  findImageAssetByHash,
+  createImageAsset,
+  createImageOptimizationJob,
+  updateImageOptimizationJobStatus,
+} = require('../db')
+
+const UPLOAD_ROOT = path.join(__dirname, '..', '..', 'uploads')
+const OPTIMIZED_DIR = 'assets'
+const OPTIMIZATION_CONCURRENCY = Math.max(1, Number(process.env.IMAGE_OPTIMIZATION_CONCURRENCY || 1))
+
+let activeCount = 0
+const pendingJobs = []
+
+function ensureImageMimeType(file) {
+  return typeof file?.mimetype === 'string' && file.mimetype.startsWith('image/')
+}
+
+function createMemoryUpload(multer, { fileSize = 6 * 1024 * 1024, maxCount } = {}) {
+  return multer({
+    storage: multer.memoryStorage(),
+    limits: {
+      fileSize,
+      ...(typeof maxCount === 'number' ? { files: maxCount } : {}),
+    },
+    fileFilter: (req, file, cb) => {
+      if (ensureImageMimeType(file)) return cb(null, true)
+      cb(new Error('image_file_required'))
+    },
+  })
+}
+
+function scheduleQueue() {
+  while (activeCount < OPTIMIZATION_CONCURRENCY && pendingJobs.length) {
+    const job = pendingJobs.shift()
+    activeCount += 1
+    processQueuedJob(job)
+      .then(job.resolve)
+      .catch(job.reject)
+      .finally(() => {
+        activeCount = Math.max(0, activeCount - 1)
+        scheduleQueue()
+      })
+  }
+}
+
+async function optimizeAndPersist({ file, width, height, fit, quality }) {
+  const { data, info } = await sharp(file.buffer, { failOn: 'none' })
+    .rotate()
+    .resize({
+      width,
+      height,
+      fit,
+      withoutEnlargement: true,
+    })
+    .webp({ quality })
+    .toBuffer({ resolveWithObject: true })
+
+  const contentHash = crypto.createHash('sha256').update(data).digest('hex')
+  const existing = await findImageAssetByHash(contentHash)
+  if (existing) {
+    return {
+      src: existing.src,
+      size: existing.byteSize,
+      originalSize: existing.originalByteSize,
+      width: existing.width,
+      height: existing.height,
+      contentHash: existing.contentHash,
+      reused: true,
+    }
+  }
+
+  const filename = String(Date.now()) + '-' + nanoid() + '.webp'
+  const absoluteDir = path.join(UPLOAD_ROOT, OPTIMIZED_DIR)
+  const absolutePath = path.join(absoluteDir, filename)
+  const src = '/uploads/' + OPTIMIZED_DIR + '/' + filename
+
+  await fs.mkdir(absoluteDir, { recursive: true })
+  await fs.writeFile(absolutePath, data)
+
+  try {
+    const asset = await createImageAsset({
+      id: nanoid(),
+      contentHash,
+      src,
+      mimeType: 'image/webp',
+      byteSize: data.length,
+      originalByteSize: file.size || file.buffer.length,
+      width: info.width || 0,
+      height: info.height || 0,
+    })
+
+    return {
+      src: asset.src,
+      size: asset.byteSize,
+      originalSize: asset.originalByteSize,
+      width: asset.width,
+      height: asset.height,
+      contentHash: asset.contentHash,
+      reused: false,
+    }
+  } catch (error) {
+    try {
+      await fs.unlink(absolutePath)
+    } catch (unlinkError) {
+      if (unlinkError?.code !== 'ENOENT') throw unlinkError
+    }
+
+    if (error?.code === 'ER_DUP_ENTRY') {
+      const asset = await findImageAssetByHash(contentHash)
+      if (asset) {
+        return {
+          src: asset.src,
+          size: asset.byteSize,
+          originalSize: asset.originalByteSize,
+          width: asset.width,
+          height: asset.height,
+          contentHash: asset.contentHash,
+          reused: true,
+        }
+      }
+    }
+
+    throw error
+  }
+}
+
+async function processQueuedJob(job) {
+  await updateImageOptimizationJobStatus({
+    id: job.jobId,
+    status: 'processing',
+    startedAt: Date.now(),
+  })
+
+  try {
+    const result = await optimizeAndPersist(job)
+    await updateImageOptimizationJobStatus({
+      id: job.jobId,
+      status: 'completed',
+      optimizedByteSize: result.size,
+      reusedAsset: result.reused,
+      finishedAt: Date.now(),
+    })
+    return result
+  } catch (error) {
+    await updateImageOptimizationJobStatus({
+      id: job.jobId,
+      status: 'failed',
+      errorMessage: error?.message || 'optimization_failed',
+      finishedAt: Date.now(),
+    })
+    throw error
+  }
+}
+
+async function writeOptimizedImage({
+  file,
+  directory,
+  width,
+  height,
+  fit = 'inside',
+  quality = 82,
+}) {
+  if (!file?.buffer?.length) {
+    const error = new Error('file_required')
+    error.code = 'file_required'
+    throw error
+  }
+
+  if (!ensureImageMimeType(file)) {
+    const error = new Error('image_file_required')
+    error.code = 'image_file_required'
+    throw error
+  }
+
+  const jobId = nanoid()
+  await createImageOptimizationJob({
+    id: jobId,
+    sourceCategory: directory,
+    targetDirectory: OPTIMIZED_DIR,
+    originalByteSize: file.size || file.buffer.length,
+  })
+
+  return new Promise((resolve, reject) => {
+    pendingJobs.push({
+      jobId,
+      file,
+      directory,
+      width,
+      height,
+      fit,
+      quality,
+      resolve: (result) => resolve({ ...result, directory }),
+      reject,
+    })
+    scheduleQueue()
+  })
+}
+
+function getImageOptimizationQueueState() {
+  return {
+    concurrency: OPTIMIZATION_CONCURRENCY,
+    activeCount,
+    pendingCount: pendingJobs.length,
+  }
+}
+
+module.exports = {
+  createMemoryUpload,
+  ensureImageMimeType,
+  writeOptimizedImage,
+  getImageOptimizationQueueState,
+}
--- a/backend/src/routes/admin.js
+++ b/backend/src/routes/admin.js
@@ -30,8 +30,14 @@ const {
  adminUpdateUser,
  adminUpdateUserPassword,
  adminDeleteUser,
+  listUnusedImageAssets,
+  deleteImageAssets,
+  getImageAssetStats,
+  listRecentImageOptimizationJobs,
+  clearImageOptimizationJobs,
 } = require('../db')
 const { requireAdmin } = require('../middleware/auth')
+const { createMemoryUpload, writeOptimizedImage, getImageOptimizationQueueState } = require('../lib/image-storage')

 const router = express.Router()

@@ -53,21 +59,8 @@ function buildItemLabelFromFilename(file) {
  return normalized || 'item'
 }

-const upload = multer({
-  storage: multer.diskStorage({
-    destination: (req, file, cb) => cb(null, path.join(__dirname, '..', '..', 'uploads', 'games')),
-    filename: (req, file, cb) => cb(null, buildUploadFilename(file)),
-  }),
-  limits: { fileSize: 6 * 1024 * 1024 },
-})
-
-const avatarUpload = multer({
-  storage: multer.diskStorage({
-    destination: (req, file, cb) => cb(null, path.join(__dirname, '..', '..', 'uploads', 'avatars')),
-    filename: (req, file, cb) => cb(null, buildUploadFilename(file)),
-  }),
-  limits: { fileSize: 3 * 1024 * 1024 },
-})
+const upload = createMemoryUpload(multer, { fileSize: 8 * 1024 * 1024, maxCount: 50 })
+const avatarUpload = createMemoryUpload(multer, { fileSize: 4 * 1024 * 1024 })

 router.post('/games', requireAdmin, async (req, res) => {
  const schema = z.object({ id: z.string().min(1), name: z.string().min(1).max(60) })
@@ -97,7 +90,17 @@ router.post('/games/:gameId/thumbnail', requireAdmin, upload.single('thumbnail')
  if (!req.file) return res.status(400).json({ error: 'file_required' })
  const game = await findGameById(req.params.gameId)
  if (!game) return res.status(404).json({ error: 'not_found' })
-  const updated = await updateGameThumbnail(req.params.gameId, `/uploads/games/${req.file.filename}`)
+
+  const optimized = await writeOptimizedImage({
+    file: req.file,
+    directory: 'games',
+    width: 1280,
+    height: 1280,
+    fit: 'inside',
+    quality: 84,
+  })
+
+  const updated = await updateGameThumbnail(req.params.gameId, optimized.src)
  res.json({ game: updated })
 })

@@ -107,18 +110,29 @@ router.post('/games/:gameId/images', requireAdmin, upload.array('images', 50), a
  const game = await findGameById(req.params.gameId)
  if (!game) return res.status(404).json({ error: 'not_found' })

-  const manualLabel = typeof req.body?.label === 'string' ? req.body.label.trim() : ''
-  if (manualLabel && manualLabel.length > 60) return res.status(400).json({ error: 'bad_request' })
+  const labelsRaw = req.body?.labels
+  const labels = Array.isArray(labelsRaw) ? labelsRaw : labelsRaw ? [labelsRaw] : []
+  const normalizedLabels = labels.map((label) => (typeof label === 'string' ? label.trim().slice(0, 60) : ''))
+  if (normalizedLabels.some((label) => label.length > 60)) return res.status(400).json({ error: 'bad_request' })

  const items = await Promise.all(
-    files.map((file, index) =>
-      createGameItem({
+    files.map(async (file, index) => {
+      const optimized = await writeOptimizedImage({
+        file,
+        directory: 'games',
+        width: 512,
+        height: 512,
+        fit: 'inside',
+        quality: 84,
+      })
+
+      return createGameItem({
        id: nanoid(),
        gameId: game.id,
-        src: `/uploads/games/${file.filename}`,
-        label: index === 0 && manualLabel ? manualLabel : buildItemLabelFromFilename(file),
+        src: optimized.src,
+        label: normalizedLabels[index] || buildItemLabelFromFilename(file),
      })
-    )
+    })
  )

  res.json({ item: items[0], items })
@@ -197,6 +211,78 @@ router.get('/template-requests', requireAdmin, async (req, res) => {
  res.json({ requests })
 })

+router.get('/image-assets/orphans', requireAdmin, async (req, res) => {
+  const schema = z.object({
+    limit: z.coerce.number().int().min(1).max(500).optional().default(100),
+    minAgeHours: z.coerce.number().min(0).max(24 * 365).optional().default(24),
+  })
+  const parsed = schema.safeParse(req.query)
+  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
+
+  const assets = await listUnusedImageAssets(parsed.data)
+  res.json({ assets })
+})
+
+async function removeImageAssetFiles(assets) {
+  await Promise.all(
+    (assets || []).map(async (asset) => {
+      if (!asset?.src || !asset.src.startsWith('/uploads/')) return
+      const absolutePath = path.join(__dirname, '..', '..', asset.src.replace(/^\//, ''))
+      try {
+        await fs.unlink(absolutePath)
+      } catch (error) {
+        if (error?.code !== 'ENOENT') throw error
+      }
+    })
+  )
+}
+
+router.post('/image-assets/cleanup', requireAdmin, async (req, res) => {
+  const schema = z.object({
+    limit: z.coerce.number().int().min(1).max(500).optional().default(100),
+    minAgeHours: z.coerce.number().min(0).max(24 * 365).optional().default(24),
+  })
+  const parsed = schema.safeParse(req.body)
+  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
+
+  const assets = await listUnusedImageAssets(parsed.data)
+  const deleted = await deleteImageAssets(assets.map((asset) => asset.id))
+  await removeImageAssetFiles(deleted)
+  res.json({ deletedCount: deleted.length, assets: deleted })
+})
+
+router.get('/image-assets/stats', requireAdmin, async (req, res) => {
+  const schema = z.object({
+    month: z.string().regex(/^\d{4}-\d{2}$/).optional(),
+    limit: z.coerce.number().int().min(1).max(24).optional().default(12),
+  })
+  const parsed = schema.safeParse(req.query)
+  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
+
+  const filters = { month: parsed.data.month }
+  const [stats, recentJobs] = await Promise.all([
+    getImageAssetStats(filters),
+    listRecentImageOptimizationJobs(parsed.data.limit, filters),
+  ])
+  res.json({
+    stats,
+    filters,
+    queue: getImageOptimizationQueueState(),
+    recentJobs,
+  })
+})
+
+router.post('/image-assets/stats/reset', requireAdmin, async (req, res) => {
+  const schema = z.object({
+    month: z.string().regex(/^\d{4}-\d{2}$/).optional().nullable(),
+  })
+  const parsed = schema.safeParse(req.body || {})
+  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
+
+  const deletedCount = await clearImageOptimizationJobs({ month: parsed.data.month || undefined })
+  res.json({ deletedCount })
+})
+
 async function removeCustomItemFiles(items) {
  await Promise.all(
    items.map(async (item) => {
@@ -212,33 +298,18 @@ async function removeCustomItemFiles(items) {
 }

 async function promoteCustomItemToGameItem({ customItem, gameId }) {
-  const originalName = path.basename(customItem.src || '')
-  const nextFilename = buildUploadFilename({ originalname: originalName })
-  const sourcePath = path.join(__dirname, '..', '..', customItem.src.replace(/^\//, ''))
-  const targetRelativePath = path.join('uploads', 'games', nextFilename)
-  const targetPath = path.join(__dirname, '..', '..', targetRelativePath)
-
-  await fs.copyFile(sourcePath, targetPath)
-
  return createGameItem({
    id: nanoid(),
    gameId,
-    src: `/${targetRelativePath.replace(/\\/g, '/')}`,
+    src: customItem.src || '',
    label: customItem.label,
  })
 }

 async function copyUploadIntoGameAsset(src) {
  if (typeof src !== 'string' || !src.startsWith('/uploads/')) return src || ''
-
-  const originalName = path.basename(src)
-  const nextFilename = buildUploadFilename({ originalname: originalName })
-  const sourcePath = path.join(__dirname, '..', '..', src.replace(/^\//, ''))
-  const targetRelativePath = path.join('uploads', 'games', nextFilename)
-  const targetPath = path.join(__dirname, '..', '..', targetRelativePath)
-
-  await fs.copyFile(sourcePath, targetPath)
-  return `/${targetRelativePath.replace(/\\/g, '/')}`
+  if (src.startsWith('/uploads/assets/')) return src
+  return src
 }

 function uniqueTierListPoolItems(tierList) {
@@ -512,8 +583,18 @@ router.post('/users/:userId/avatar', requireAdmin, avatarUpload.single('avatar')
  const user = await findUserById(req.params.userId)
  if (!user) return res.status(404).json({ error: 'not_found' })

+  const optimized = req.file
+    ? await writeOptimizedImage({
+        file: req.file,
+        directory: 'avatars',
+        width: 512,
+        height: 512,
+        fit: 'cover',
+        quality: 82,
+      })
+    : null
  const shouldRemoveAvatar = parsed.data.removeAvatar === '1'
-  const nextAvatarSrc = shouldRemoveAvatar ? '' : req.file ? `/uploads/avatars/${req.file.filename}` : user.avatarSrc || ''
+  const nextAvatarSrc = shouldRemoveAvatar ? '' : optimized?.src || user.avatarSrc || ''
  const updated = await adminUpdateUser({
    id: user.id,
    email: user.email,
--- a/backend/src/routes/auth.js
+++ b/backend/src/routes/auth.js
@@ -1,5 +1,4 @@
 const express = require('express')
-const path = require('path')
 const bcrypt = require('bcryptjs')
 const { z } = require('zod')
 const { nanoid } = require('nanoid')
@@ -12,15 +11,10 @@ const {
  updateUserProfile,
 } = require('../db')
 const { requireAuth } = require('../middleware/auth')
+const { createMemoryUpload, writeOptimizedImage } = require('../lib/image-storage')

 const router = express.Router()

-function buildUploadFilename(file) {
-  const ext = path.extname(file.originalname || '').toLowerCase()
-  const safeExt = ext && /^[.a-z0-9]+$/.test(ext) ? ext : ''
-  return `${Date.now()}-${nanoid()}${safeExt}`
-}
-
 const signupSchema = z.object({
  email: z.string().email(),
  password: z.string().min(6),
@@ -45,7 +39,6 @@ router.post('/signup', async (req, res) => {

  req.session.userId = user.id
  req.session.isAdmin = !!user.isAdmin
-  // 세션을 응답 전에 명시적으로 저장해 Set-Cookie가 확실히 내려오도록 보강
  req.session.save((err) => {
    if (err) return res.status(500).json({ error: 'session_save_failed' })
    res.json(user)
@@ -94,13 +87,7 @@ router.get('/meta', async (req, res) => {
  res.json({ hasUsers: (await countUsers()) > 0 })
 })

-const upload = multer({
-  storage: multer.diskStorage({
-    destination: (req, file, cb) => cb(null, path.join(__dirname, '..', '..', 'uploads', 'avatars')),
-    filename: (req, file, cb) => cb(null, buildUploadFilename(file)),
-  }),
-  limits: { fileSize: 3 * 1024 * 1024 },
-})
+const upload = createMemoryUpload(multer, { fileSize: 4 * 1024 * 1024 })

 router.post('/profile', requireAuth, upload.single('avatar'), async (req, res) => {
  const parsed = profileSchema.safeParse(req.body)
@@ -109,12 +96,19 @@ router.post('/profile', requireAuth, upload.single('avatar'), async (req, res) =
  const user = await findUserById(req.session.userId)
  if (!user) return res.status(404).json({ error: 'not_found' })

+  const optimized = req.file
+    ? await writeOptimizedImage({
+        file: req.file,
+        directory: 'avatars',
+        width: 512,
+        height: 512,
+        fit: 'cover',
+        quality: 82,
+      })
+    : null
+
  const shouldRemoveAvatar = parsed.data.removeAvatar === '1'
-  const nextAvatarSrc = shouldRemoveAvatar
-    ? ''
-    : req.file
-      ? `/uploads/avatars/${req.file.filename}`
-      : user.avatarSrc || ''
+  const nextAvatarSrc = shouldRemoveAvatar ? '' : optimized?.src || user.avatarSrc || ''
  const updated = await updateUserProfile({
    id: user.id,
    nickname: parsed.data.nickname,
--- a/backend/src/routes/games.js
+++ b/backend/src/routes/games.js
@@ -1,13 +1,32 @@
 const express = require('express')
-const { listGames, getGameDetail } = require('../db')
+const { listGames, getGameDetail, findGameById, favoriteGame, unfavoriteGame } = require('../db')
+const { requireAuth } = require('../middleware/auth')

 const router = express.Router()

 router.get('/', async (req, res) => {
-  const games = await listGames()
+  const games = await listGames(req.session?.userId || '')
  res.json({ games })
 })

+router.post('/:gameId/favorite', requireAuth, async (req, res) => {
+  const game = await findGameById(req.params.gameId)
+  if (!game || game.id === 'freeform') return res.status(404).json({ error: 'not_found' })
+  await favoriteGame({ userId: req.session.userId, gameId: game.id })
+  const games = await listGames(req.session.userId)
+  const updated = games.find((entry) => entry.id === game.id) || { ...game, isFavorited: true }
+  res.json({ game: updated })
+})
+
+router.delete('/:gameId/favorite', requireAuth, async (req, res) => {
+  const game = await findGameById(req.params.gameId)
+  if (!game || game.id === 'freeform') return res.status(404).json({ error: 'not_found' })
+  await unfavoriteGame({ userId: req.session.userId, gameId: game.id })
+  const games = await listGames(req.session.userId)
+  const updated = games.find((entry) => entry.id === game.id) || { ...game, isFavorited: false }
+  res.json({ game: updated })
+})
+
 router.get('/:gameId', async (req, res) => {
  const detail = await getGameDetail(req.params.gameId)
  if (!detail) return res.status(404).json({ error: 'not_found' })
--- a/backend/src/routes/tierlists.js
+++ b/backend/src/routes/tierlists.js
@@ -1,5 +1,4 @@
 const express = require('express')
-const path = require('path')
 const multer = require('multer')
 const { z } = require('zod')
 const { nanoid } = require('nanoid')
@@ -15,8 +14,10 @@ const {
  findUserById,
  favoriteTierList,
  unfavoriteTierList,
+  duplicateTierListForUser,
 } = require('../db')
 const { requireAuth } = require('../middleware/auth')
+const { createMemoryUpload, writeOptimizedImage } = require('../lib/image-storage')

 const router = express.Router()
 const FREEFORM_GAME_ID = 'freeform'
@@ -54,27 +55,8 @@ function getCustomTemplateItems(tierList) {
  })
 }

-function buildUploadFilename(file) {
-  const ext = path.extname(file.originalname || '').toLowerCase()
-  const safeExt = ext && /^[.a-z0-9]+$/.test(ext) ? ext : ''
-  return `${Date.now()}-${nanoid()}${safeExt}`
-}
-
-const upload = multer({
-  storage: multer.diskStorage({
-    destination: (req, file, cb) => cb(null, path.join(__dirname, '..', '..', 'uploads', 'custom')),
-    filename: (req, file, cb) => cb(null, buildUploadFilename(file)),
-  }),
-  limits: { fileSize: 6 * 1024 * 1024 },
-})
-
-const thumbnailUpload = multer({
-  storage: multer.diskStorage({
-    destination: (req, file, cb) => cb(null, path.join(__dirname, '..', '..', 'uploads', 'tierlists')),
-    filename: (req, file, cb) => cb(null, buildUploadFilename(file)),
-  }),
-  limits: { fileSize: 6 * 1024 * 1024 },
-})
+const upload = createMemoryUpload(multer, { fileSize: 6 * 1024 * 1024 })
+const thumbnailUpload = createMemoryUpload(multer, { fileSize: 8 * 1024 * 1024 })

 const tierListUpsertSchema = z.object({
  id: z.string().optional(),
@@ -84,6 +66,9 @@ const tierListUpsertSchema = z.object({
  description: z.string().max(1000).optional().default(''),
  isPublic: z.boolean().default(false),
  showCharacterNames: z.boolean().optional().default(false),
+  sourceTierListId: z.string().max(64).optional().default(''),
+  sourceSnapshotTitle: z.string().max(120).optional().default(''),
+  sourceSnapshotAuthor: z.string().max(120).optional().default(''),
  groups: z.array(
    z.object({
      id: z.string().min(1),
@@ -131,6 +116,15 @@ router.get('/:id', async (req, res) => {
  res.json({ tierList: normalizeTierList(t) })
 })

+router.post('/:id/duplicate', requireAuth, async (req, res) => {
+  const tierList = await findTierListById(req.params.id, req.session.userId)
+  if (!tierList) return res.status(404).json({ error: 'not_found' })
+  if (!tierList.isPublic && tierList.authorId !== req.session.userId) return res.status(403).json({ error: 'forbidden' })
+
+  const duplicated = await duplicateTierListForUser({ tierList, targetUserId: req.session.userId })
+  res.json({ tierList: normalizeTierList(duplicated) })
+})
+
 router.delete('/:id', requireAuth, async (req, res) => {
  const tierList = await findTierListById(req.params.id, req.session.userId)
  if (!tierList) return res.status(404).json({ error: 'not_found' })
@@ -166,10 +160,19 @@ router.post('/custom-items', requireAuth, upload.single('image'), async (req, re
  const parsed = schema.safeParse(req.body)
  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })

+  const optimized = await writeOptimizedImage({
+    file: req.file,
+    directory: 'custom',
+    width: 512,
+    height: 512,
+    fit: 'inside',
+    quality: 84,
+  })
+
  const item = await createCustomItem({
    id: nanoid(),
    ownerId: req.session.userId,
-    src: `/uploads/custom/${req.file.filename}`,
+    src: optimized.src,
    label: parsed.data.label,
  })

@@ -178,12 +181,24 @@ router.post('/custom-items', requireAuth, upload.single('image'), async (req, re

 router.post('/thumbnail', requireAuth, thumbnailUpload.single('thumbnail'), async (req, res) => {
  if (!req.file) return res.status(400).json({ error: 'file_required' })
-  res.json({ thumbnailSrc: `/uploads/tierlists/${req.file.filename}` })
+
+  const optimized = await writeOptimizedImage({
+    file: req.file,
+    directory: 'tierlists',
+    width: 1280,
+    height: 1280,
+    fit: 'inside',
+    quality: 84,
+  })
+
+  res.json({ thumbnailSrc: optimized.src })
 })

 router.post('/:id/template-request', requireAuth, async (req, res) => {
  const schema = z.object({
    type: z.enum(['create', 'update']),
+    requestTitle: z.string().trim().min(1).max(80),
+    requestDescription: z.string().trim().min(1).max(240),
  })
  const parsed = schema.safeParse(req.body)
  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
@@ -197,9 +212,6 @@ router.post('/:id/template-request', requireAuth, async (req, res) => {

  if (parsed.data.type === 'create') {
    if (tierList.gameId !== FREEFORM_GAME_ID) return res.status(400).json({ error: 'freeform_required' })
-    if (!(tierList.title || '').trim() || (tierList.title || '').trim() === FREEFORM_DEFAULT_TITLE) {
-      return res.status(400).json({ error: 'title_required' })
-    }
  } else {
    if (tierList.gameId === FREEFORM_GAME_ID) return res.status(400).json({ error: 'game_template_required' })
  }
@@ -212,8 +224,8 @@ router.post('/:id/template-request', requireAuth, async (req, res) => {
      sourceTierListId: tierList.id,
      sourceGameId: tierList.gameId,
      targetGameId: parsed.data.type === 'update' ? tierList.gameId : '',
-      title: tierList.title,
-      description: tierList.description || '',
+      title: parsed.data.requestTitle,
+      description: parsed.data.requestDescription,
      thumbnailSrc: tierList.thumbnailSrc || '',
      items: customItems,
    })
@@ -246,6 +258,9 @@ router.post('/', requireAuth, async (req, res) => {
      description: payload.description || '',
      isPublic: !!payload.isPublic,
      showCharacterNames: !!payload.showCharacterNames,
+      sourceTierListId: payload.sourceTierListId || existing.sourceTierListId || '',
+      sourceSnapshotTitle: payload.sourceSnapshotTitle || existing.sourceSnapshotTitle || '',
+      sourceSnapshotAuthor: payload.sourceSnapshotAuthor || existing.sourceSnapshotAuthor || '',
      groups: payload.groups,
      pool: normalizedPool,
    })
@@ -261,6 +276,9 @@ router.post('/', requireAuth, async (req, res) => {
    description: payload.description || '',
    isPublic: !!payload.isPublic,
    showCharacterNames: !!payload.showCharacterNames,
+    sourceTierListId: payload.sourceTierListId || '',
+    sourceSnapshotTitle: payload.sourceSnapshotTitle || '',
+    sourceSnapshotAuthor: payload.sourceSnapshotAuthor || '',
    groups: payload.groups,
    pool: normalizedPool,
  })
--- a/docs/todo.md
+++ b/docs/todo.md
@@ -1,40 +1,11 @@
 # 할 일 및 이슈

 ## 즉시 확인 필요
- 피그마 기반 리디자인은 현재 공통 셸과 카드 목록 화면, 포커스 화면 안정화까지만 반영된 상태이므로, 에디터/관리자 우측 옵션 패널을 시안 구조에 맞게 실제 기능 패널로 이관하는 작업이 남아 있다.
- 홈/게임 허브/내 티어표/즐겨찾기 카드 문법은 어느 정도 통일됐지만, 아직 실제 SVG 아이콘, 미세 간격, hover/selection 상태 같은 디테일은 더 다듬을 필요가 있다.
- 목록 화면 상단 도구 막대는 공통 카드 문법으로 거의 맞췄지만, 실제 피그마처럼 필터 토글/정렬 상태를 시각적으로 더 강하게 드러내는 디테일은 남아 있다.
- 현재 공통 셸에는 임시 선형 SVG 아이콘을 사용하므로, 최종 머티리얼 아이콘 에셋을 받으면 교체하고 아이콘 크기/정렬을 다시 미세 조정할 필요가 있다.
- 공통 셸과 에디터에는 일부 실제 SVG 아이콘을 연결했지만, 아직 즐겨찾기/설정/관리자 등 나머지 내비 아이콘은 임시 선형 SVG이므로 추가 에셋 교체가 남아 있다.
- 공통 우측 패널의 토글과 독립 컬럼 구조는 반영되었지만, 현재는 안내 카드 중심이므로 실제 화면별 기능 컨트롤을 이 패널로 옮기는 작업이 남아 있다.
- 티어표 편집 화면과 관리자 화면 모두 로컬 우측 패널 구조로 옮겼지만, 아직 세부 카드 밀도와 아이콘/모션 디테일은 피그마 시안 수준으로 더 다듬을 필요가 있다.
- 에디터/관리자 로컬 우측 패널은 셸 카드에서 분리됐지만, 아직 실제 피그마처럼 패널 토글 전환 모션과 상태 강조가 더 필요하다.
- 에디터 로컬 우측 패널은 공통 토글과 연결됐지만, 아직 완전한 피그마 수준의 패널 애니메이션과 내부 카드 재배치는 더 다듬을 필요가 있다.
- 에디터 우측 패널은 셸의 세 번째 컬럼으로 옮겼지만, 내부 카드 간격과 섹션 구분선은 아직 첨부 시안처럼 더 촘촘하게 정리할 필요가 있다.
- 에디터 우측 패널 외곽 래퍼는 제거했으므로, 다음 단계는 공통 오른쪽 컬럼 안에서 입력/버튼/구분선 간격을 시안처럼 더 정교하게 다듬는 작업이다.
- 공통 56px 셸 헤더는 반영했으므로, 다음 단계는 좌/중앙/우 헤더 안에 실제 아이콘/상태 요소를 시안 순서에 맞게 하나씩 채워 넣는 작업이다.
- 좌측 레일은 최근 즐겨찾기와 전역 검색까지 붙었으므로, 다음 단계는 검색 자동완성이나 즐겨찾기 썸네일 품질 같은 디테일을 더 다듬는 작업이다.
- 좌측 레일 축소형은 반영했으므로, 다음 단계는 축소 상태에서 관리자/로그인 진입점과 hover 툴팁 같은 보조 UX를 더 다듬는 작업이다.
- 좌우 하단 액션 영역은 분리했으므로, 다음 단계는 축소된 왼쪽 레일에서도 관리자/로그인 버튼을 아이콘형으로 어떻게 유지할지 검토할 수 있다.
- 홈 게임 카드 메타는 간소화했으므로, 이후 필요하면 게임 썸네일은 상세 허브나 우측 패널처럼 더 맥락이 분명한 위치에만 쓰는 방향을 검토할 수 있다.
- 좌우 하단 액션은 항상 보이도록 보정했으므로, 다음 단계는 축소된 레일 상태에서 액션 버튼의 아이콘화 여부를 추가 검토할 수 있다.
- 카드 목록은 4열 기준과 메타 줄 구성까지 통일했으므로, 다음 단계는 필터 상태 배지나 hover·selection 강조 같은 상호작용 디테일을 더 다듬는 작업이다.
- 검색 결과 화면은 좌측 전역 검색 입력만 쓰도록 정리됐으므로, 다음 단계는 결과 필터/정렬 여부를 검토하는 식으로 확장하면 된다.
- 공통 3단 셸 구조는 고정했지만, 관리자/에디터 우측 패널 내부에 아직 바디에 남아 있는 제어 요소를 더 옮겨야 한다.
- 홈 화면 우측 사이드는 CTA 하나만 남긴 상태이므로, 이후 필요할 때도 임시 정보 카드 다수를 다시 넣기보다 실제 필요한 기능만 선별해 추가해야 한다.
- 관리자 화면은 헤더 요약 통계와 카드 계층까지 정리됐지만, 아직 표준 SVG 아이콘 교체와 더 세밀한 상태 색상/선택 상태 표현은 남아 있다.
- 머티리얼 아이콘 SVG는 아직 임시 문자/배지 스타일로 대체된 부분이 있으므로, 최종 아이콘 에셋을 받아 반영하는 작업이 필요하다.
- 미사용 커스텀 이미지 일괄 삭제는 현재 "참조가 없는 항목" 기준이며, 보관 기간 정책 같은 운영 규칙은 아직 없다.
- 업로드 이미지는 현재 원본 파일을 그대로 저장하므로, 운영 부담이 커지면 서버 저장 전 리사이즈/압축(예: 긴 변 제한, WebP 변환) 도입이 필요하다.
+- 레거시 업로드 파일도 현재 실사용 용량에는 포함되지만, 과거 자산까지 'image_assets' 메타에 백필한 상태는 아니므로 필요하면 1회 백필 스크립트를 추가해 절감률/중복 통계를 완전히 일원화한다.
 - 관리자 기본 아이템 다중 업로드는 현재 파일명 기반 자동 라벨만 지원하므로, 필요하면 업로드 후 일괄 라벨 수정/정렬 UX를 추가 검토한다.
 - 사용자 커스텀 아이템 승격은 현재 수동 복제 방식이므로, 필요하면 중복 감지나 “비슷한 항목 추천” 같은 보조 UX를 검토한다.
- 템플릿 등록/업데이트 요청은 현재 승인/반려만 지원하므로, 필요하면 관리자 코멘트나 사용자용 요청 상태 이력 화면을 추가 검토한다.
- 관리자 티어표 관리의 템플릿 생성은 현재 `freeform`만 직접 지원하므로, 필요하면 일반 게임 티어표의 전체 아이템을 복제한 파생 템플릿 생성 UX도 검토한다.
 - 관리자 티어표 관리의 추가 아이템 승격은 현재 커스텀(origin=`custom`) 아이템 기준이므로, 필요하면 “기존 게임 아이템과 비교한 차집합” 기준으로 더 정교하게 확장할 수 있다.
- 즐겨찾기는 현재 `내 즐겨찾기` 목록과 정렬까지 지원하므로, 필요하면 폴더 분류나 메모 같은 개인 정리 기능을 추가 검토한다.
- 전역 토스트는 중복 합치기와 페이드아웃까지 지원하므로, 필요하면 액션 링크나 수동 고정(pin) 같은 상호작용 확장을 검토한다.
- 공개 티어표 검색은 현재 게임별 허브 안에서만 제공하므로, 필요하면 홈 전역 통합 검색도 검토한다.
- 즐겨찾기 토글은 현재 상세 화면 중심이므로, 필요하면 카드 목록에서도 안전한 보조 인터랙션(예: 길게 누르기, 별도 메뉴)을 검토한다.
+- 이미지 최적화 기록은 월별 조회/비우기까지 지원하므로, 운영 단계에서는 보관 기간 정책과 자동 아카이브 기준을 정한다.

 ## 배포 전 작업
 - NAS 실제 도메인 기준으로 `VITE_API_ORIGIN`, `CORS_ORIGINS`, `SESSION_SECRET`, `SESSION_COOKIE_SECURE`, `TRUST_PROXY` 값을 설정한다.
@@ -44,8 +15,6 @@
 - 로컬 docker compose와 NAS MariaDB 사이의 버전 차이가 크지 않도록 유지한다.

 ## 중기 개선
- 게임/이미지/티어표 삭제 후 복구 또는 수정 이력 관리 기능을 추가한다.
- 자동 테스트와 최소한의 배포 체크리스트를 만든다.
 - 관리자용 티어표 승인/숨김 처리, 아이템 정렬 UI를 추가한다.
 - 회원 검색/필터, 일괄 권한 변경 같은 관리 보조 기능을 추가한다.
 - 티어 행 프리셋 저장, 색상 관리, 행 복제 같은 고급 편집 기능을 추가한다.
--- a/docs/update.md
+++ b/docs/update.md
@@ -1,5 +1,103 @@
 # 업데이트 로그

+## 2026-03-31 v1.3.5
+- 관리자 이미지 최적화 대시보드는 이제 'image_assets'만이 아니라 현재 실제로 참조 중인 업로드 파일 전체를 합산해, 기존 레거시 업로드까지 포함한 실사용 용량을 함께 보여주도록 확장함.
+- 최근 최적화 작업은 기본 12건으로 늘리고 6/12/24건 선택과 월 단위 필터를 지원해, 특정 기간 사용량과 최적화 이력을 운영 관점에서 바로 확인할 수 있게 정리함.
+- 관리자에서 월별 또는 전체 최적화 기록을 비우는 정리 액션을 추가하고, todo 문서도 현재 이미지 최적화 흐름에 맞게 갱신함.
+
+## 2026-03-31 v1.3.4
+- 관리자 API에 이미지 자산 통계 엔드포인트를 추가해 총 자산 수, 현재 용량, 원본 대비 절감 용량/절감률, 작업 누적 상태를 조회할 수 있게 확장함.
+- 관리자 오른쪽 사이드 하단에 `Image Optimization` 패널을 추가해 큐 상태, 절감 통계, 최근 최적화 작업을 바로 확인할 수 있도록 대시보드를 구성함.
+- 미사용 자산 정리 API와 작업 기록 큐를 기반으로, 운영 중 이미지 스토리지 상태를 관리자 화면에서 직접 점검할 수 있는 흐름을 완성함.
+
+## 2026-03-31 v1.3.3
+- `image_assets` 참조를 전수 점검해 아무 곳에서도 사용하지 않는 최적화 이미지 자산만 추려내는 정리 배치 로직을 추가함.
+- 관리자용 미사용 자산 조회/정리 API를 추가해 오래된 고아 이미지 자산을 미리 확인하거나 실제로 삭제할 수 있도록 확장함.
+- 관리자 승격/템플릿 생성 과정은 기존 `/uploads/assets/` 자산을 그대로 재사용하도록 바꿔, 불필요한 복제 파일이 다시 생기지 않게 정리함.
+
+## 2026-03-31 v1.3.2
+- 업로드 최적화는 이제 백엔드 내부 대기열을 통해 처리되어, 다수 이미지가 한 번에 들어와도 설정된 동시성 안에서 순차적으로 안정적으로 변환되도록 정리함.
+- `image_optimization_jobs` 작업 기록 테이블을 추가해 queued/processing/completed/failed 상태와 원본·최적화 용량, 재사용 여부, 시작/종료 시각을 저장하도록 확장함.
+- 현재 라우트 응답 방식은 유지하면서도 내부적으로는 큐를 타도록 구조를 바꿔, 이후 관리자 대시보드와 작업 통계 화면을 바로 얹을 수 있는 기반을 마련함.
+
+## 2026-03-31 v1.3.1
+- 최적화된 WebP 결과물 기준으로 SHA-256 해시를 계산해, 같은 이미지가 다시 업로드되면 새 파일을 저장하지 않고 기존 자산을 재사용하도록 중복 이미지 해시 검사를 추가함.
+- 이미지 자산 메타데이터를 저장하는 `image_assets` 테이블을 도입해 파일 경로, 해시, 원본 대비 최적화 용량, 해상도를 함께 기록하도록 확장함.
+- 중복 업로드 경쟁 상황에서도 고유 해시 충돌을 안전하게 처리하고, 새 파일 저장에 실패하면 즉시 정리하도록 업로드 헬퍼를 보강함.
+
+## 2026-03-31 v1.3.0
+- 백엔드 업로드 파이프라인을 메모리 기반으로 전환하고, 대표 썸네일·게임 썸네일·커스텀 아이템·게임 기본 아이템·아바타를 서버에서 즉시 WebP로 변환해 저장하도록 정리함.
+- 아이템 이미지는 최대 512px 규격으로 리사이즈하고, 티어표/게임 썸네일은 긴 변 기준 1280px 안쪽으로 최적화해 원본 이미지를 별도로 보관하지 않는 흐름으로 전환함.
+- 업로드 최적화 공통 헬퍼를 추가해 앞으로 중복 해시 검사, 비동기 최적화 큐, 용량 통계 대시보드를 같은 경로 위에 확장할 수 있는 기반을 마련함.
+
+## 2026-03-31 v1.2.73
+- 게임 허브 리스트형 보기의 썸네일을 48px 밀도로 축소해 한 줄이 과하게 커 보이던 인상을 줄이고, 더 많은 티어표를 한눈에 볼 수 있게 조정함.
+- 깨진 대표 썸네일은 `img` alt 텍스트가 길게 노출되지 않도록 에러 시 즉시 플레이스홀더로 대체하고, 제목/메타 말줄임을 더 보강해 레이아웃 붕괴를 막음.
+
+## 2026-03-31 v1.2.72
+- 게임 허브 공개 티어표 목록은 카드 폭과 제목/메타 줄 계산을 다시 조정해, 브라우저 폭에 따라 썸네일과 정보가 카드 밖으로 넘치던 레이아웃 깨짐을 보정함.
+- 상단 워크스페이스 헤더에 grid/list 보기 토글을 추가하고, 게임 허브는 그리드 카드형과 가로 리스트형을 즉시 전환해 볼 수 있도록 확장함.
+
+## 2026-03-31 v1.2.71
+- 게임 허브 공개 티어표 카드는 자동 폭 그리드와 2줄 제목/유연한 메타 배치로 보정해, 브라우저 폭이 줄어들어도 썸네일과 텍스트가 카드 밖으로 넘치지 않도록 정리함.
+- 공개 티어표 상세에서는 다른 사용자의 티어표를 복사해 내 작업본으로 가져오는 기능을 추가하고, 복사본에는 원본 제목/작성자 정보를 작은 출처 메모로 남기도록 확장함.
+- 보기 전용 티어표의 미배치 아이템은 더 어둡고 흐리게 표시하고 `미배치` 상태를 붙여, 내 보드처럼 조작 가능한 인상을 줄이도록 보정함.
+
+## 2026-03-31 v1.2.70
+- 관리자 게임 관리의 썸네일 드롭존을 카드 안 카드 구조 대신, 썸네일 전체 위에 하단 오버레이 문구를 얹는 단일 미디어 영역으로 정리함.
+- 게임 관리 본문 상단 안내 패널과 과한 설명 문구를 제거하고, 비선택 상태는 `게임을 선택해 주세요.` 한 줄 중심의 empty 상태로 단순화함.
+- 새 게임 생성 버튼은 게임 선택과 함께 오른쪽 사이드로 옮겨, 게임 관리 흐름을 선택·생성·썸네일 지정까지 한쪽 패널에서 처리하도록 정리함.
+
+## 2026-03-31 v1.2.69
+- 좌우 사이드 축소/확대 시 텍스트를 즉시 `display:none` 처리하던 방식을 줄이고, 폭·투명도 기반 전환으로 바꿔 아이콘이 떨리는 듯한 느낌을 완화함.
+- 관리자 게임 관리는 오른쪽 사이드에서 게임 선택과 썸네일 지정을 담당하도록 재배치하고, 본문은 기본 아이템 추가/이름 입력/목록 관리에 집중하도록 정리함.
+- 게임 기본 아이템 추가는 업로드 직후 각 파일 이름을 바로 수정할 수 있는 draft 입력 행을 넣고, 선택한 이름이 서버에 함께 저장되도록 관리자 업로드 API를 확장함.
+
+## 2026-03-31 v1.2.68
+- 내 티어표 카드 그리드는 각 카드가 화면 전체 너비를 과도하게 먹지 않도록 최대 폭을 제한해, 1~2개만 있을 때도 적당한 카드 크기를 유지하도록 조정함.
+- 새 티어표 기본 그룹은 기존 S/A/B/C/D 5줄 대신 S/A/B/C 4줄로 시작하게 바꾸고, 좌우 사이드 토글 아이콘 버튼은 외곽선과 배경을 제거해 더 가볍게 정리함.
+
+## 2026-03-31 v1.2.67
+- 홈 화면 게임 템플릿 즐겨찾기 버튼 위치 변경은 유지하면서, 즐겨찾기 on/off 시 카드가 즉시 튀지 않고 부드럽게 재정렬되도록 이동/페이드 전환을 추가함.
+- 별 아이콘을 눌렀을 때 카드가 즐겨찾기 우선순위 위치로 자연스럽게 이동해 전체 라이브러리 전환감이 덜 거칠게 보이도록 보정함.
+
+## 2026-03-31 v1.2.66
+- 내 티어표 카드 하단의 큰 삭제 버튼은 제거하고, 삭제는 상세 편집 화면에서만 하도록 흐름을 단순화함.
+- 내 티어표 카드 그리드를 고정 4/3/2열에서 `auto-fit` 기반 최소 폭 카드로 바꾸고, 제목/메타가 좁은 화면에서도 말줄임과 유연한 폭 계산을 유지하도록 보정함.
+
+## 2026-03-31 v1.2.65
+- 에디터 옵션 토글의 라벨과 스위치 순서를 바꾼 뒤 체크 상태 셀렉터가 끊긴 문제를 보정해, 왼쪽 라벨·오른쪽 스위치 배치에서도 정상 동작하도록 수정함.
+- 왼쪽 사이드 축소 상태 검색은 전용 모달의 기본 스타일이 빠져 있던 문제를 복구해, 다시 중앙 상단 검색 오버레이로 열리도록 정리함.
+
+## 2026-03-31 v1.2.64
+- 메인 콘텐츠가 길어질 때 스크롤 끝이 화면 바닥에 붙지 않도록 중앙 워크스페이스 하단 여백을 추가하고, 긴 작업 화면에서도 마감선이 답답하지 않게 보정함.
+- 템플릿 요청 모달 입력창을 Settings 화면과 같은 어두운 언더라인 입력 문법으로 통일하고, 에디터의 공개/이름 표시 옵션은 체크박스 대신 스위치형 토글로 재구성함.
+
+## 2026-03-31 v1.2.63
+- 앱 셸과 워크스페이스에 걸려 있던 고정 `100dvh` 높이를 풀어, 본문이 길어질 때 중앙 `main` 영역이 잘리거나 접히는 현상을 보정함.
+- 좌우 레일은 그대로 화면 기준 높이를 유지하되, 중앙 작업 영역은 내용만큼 자연스럽게 늘어나도록 높이 계산을 다시 정리함.
+
+## 2026-03-31 v1.2.62
+- 템플릿 요청 모달의 제목/설명 입력을 Settings 화면과 같은 어두운 입력 문법으로 맞춰 흰 배경/흰 글자처럼 보이던 문제를 정리함.
+- 앱 셸은 사이드 기본 바탕색을 중심으로 재정리하고, 중앙 바디에 배경과 좌우 보더를 줘 긴 스크롤에서도 사이드가 잘리는 듯한 인상을 줄이도록 조정함.
+
+## 2026-03-31 v1.2.61
+- Game Library 왼쪽 검색을 전체 티어표 검색이 아니라 게임 템플릿 검색으로 바꾸고, 홈 화면에서 검색어에 맞는 게임만 필터링하도록 조정함.
+- 게임 템플릿에 사용자별 즐겨찾기 별 아이콘을 추가하고, 즐겨찾기한 게임이 관리자 고정 순서보다 우선 노출되도록 백엔드와 홈 화면을 함께 확장함.
+- 앱 셸의 100vh 높이 계산을 100dvh와 고정 행 구조로 정리해, 콘텐츠가 없어도 생기던 불필요한 세로 스크롤을 줄임.
+
+## 2026-03-31 v1.2.60
+- 관리자 티어표 관리 카드에서 사용자가 입력한 설명을 제목 아래에 함께 노출해 요청 의도를 더 빨리 파악할 수 있게 함.
+- 템플릿 등록/업데이트 요청은 이제 에디터 모달에서 제목과 설명을 별도로 입력받고, 예시 문구와 함께 전송하도록 정리함.
+
+## 2026-03-31 v1.2.59
+- 관리자 아이템 상세 모달의 게임 선택을 전용 상태로 분리해 기본 선택값이 비어 있도록 바꾸고, 썸네일 아래에 배치해 정보/액션과 시각적으로 분리함.
+- 커스텀 아이템이 실제로 사용 중인 게임 목록을 백엔드에서 함께 내려주고, 템플릿 요청 생성 폼에는 게임 ID와 게임 이름 라벨을 추가해 구분을 명확히 함.
+
+## 2026-03-31 v1.2.58
+- 관리자 아이템 관리 카드를 썸네일과 제목만 보이는 compact 카드로 줄여, 대량 업로드된 이미지도 훨씬 높은 밀도로 탐색할 수 있게 정리함.
+- 카드 클릭 시 상세 정보를 모달로 열고 이미지 다운로드, 기본 템플릿 추가, 삭제를 모달 안에서 결정하는 흐름으로 바꿈.
+
 ## 2026-03-31 v1.2.57
 - 관리자 오른쪽 사이드에서 Featured, Game Summary, Users 패널을 완전히 제거하고, 티어표 요청 모드에는 모드 전환 탭만 남기도록 정리함.

--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -21,6 +21,7 @@ const { toasts, dismissToast } = useToast()
 const leftRailCollapsed = ref(false)
 const rightRailOpen = ref(true)
 const searchQuery = ref('')
+const searchPlaceholder = computed(() => (route.name === 'home' ? '게임 템플릿 검색' : '전체 티어표 검색'))
 const isCollapsedSearchOpen = ref(false)
 const viewportWidth = ref(typeof window !== 'undefined' ? window.innerWidth : 1440)
 provide('rightRailOpen', rightRailOpen)
@@ -54,6 +55,8 @@ const leftNavItems = computed(() => {
  return items.filter((item) => !item.requiresAuth || auth.user)
 })
 const showRightRailAction = computed(() => false)
+const showGameHubViewToggle = computed(() => route.name === 'gameHub')
+const gameHubViewMode = computed(() => (route.query.view === 'list' ? 'list' : 'grid'))
 const leftBottomPrimaryAction = computed(() => {
  if (route.name === 'home' && auth.user) {
    return { label: '커스텀 티어표 만들기', to: '/editor/freeform/new' }
@@ -241,6 +244,14 @@ function toggleRightRail() {
  }
 }

+function setGameHubViewMode(mode) {
+  if (route.name !== 'gameHub') return
+  const nextQuery = { ...route.query }
+  if (mode === 'list') nextQuery.view = 'list'
+  else delete nextQuery.view
+  router.replace({ path: route.path, query: nextQuery })
+}
+
 function openCollapsedSearch() {
  if (!leftRailCollapsed.value || isMobileLayout.value) return
  isCollapsedSearchOpen.value = true
@@ -261,6 +272,10 @@ function handleLeftRailSearch() {
 function submitGlobalSearch() {
  const query = (searchQuery.value || '').trim()
  isCollapsedSearchOpen.value = false
+  if (route.name === 'home') {
+    router.push(query ? `/?q=${encodeURIComponent(query)}` : '/')
+    return
+  }
  router.push(query ? `/search?q=${encodeURIComponent(query)}` : '/search')
 }

@@ -310,7 +325,7 @@ function submitGlobalSearch() {
              <img :src="iconSearch" alt="" />
            </span>
          </button>
-          <input v-model="searchQuery" class="searchStub__input" type="search" :placeholder="leftRailCollapsed ? '' : '전체 티어표 검색'" />
+          <input v-model="searchQuery" class="searchStub__input" type="search" :placeholder="leftRailCollapsed ? '' : searchPlaceholder" />
        </form>

        <nav class="leftNav">
@@ -348,6 +363,14 @@ function submitGlobalSearch() {
              <span class="workspaceHead__brandSub">by zenn</span>
            </div>
            <div class="workspaceHead__actions">
+              <div v-if="showGameHubViewToggle" class="viewToggle" role="group" aria-label="티어표 보기 방식">
+                <button class="ghostIcon ghostIcon--iconOnly" :class="{ 'ghostIcon--active': gameHubViewMode === 'grid' }" type="button" aria-label="그리드 보기" @click="setGameHubViewMode('grid')">
+                  <img :src="iconGridView" alt="" />
+                </button>
+                <button class="ghostIcon ghostIcon--iconOnly" :class="{ 'ghostIcon--active': gameHubViewMode === 'list' }" type="button" aria-label="리스트 보기" @click="setGameHubViewMode('list')">
+                  <img :src="iconLists" alt="" />
+                </button>
+              </div>
              <button v-if="!rightRailOpen" class="ghostIcon ghostIcon--iconOnly" type="button" aria-label="패널 열기" @click="toggleRightRail">
                <img :src="iconDockToLeft" alt="" />
              </button>
@@ -359,12 +382,12 @@ function submitGlobalSearch() {
        </section>
      </main>

-      <div v-if="isCollapsedSearchOpen" class="collapsedSearchModal" role="dialog" aria-modal="true" aria-label="전체 티어표 검색" @click.self="closeCollapsedSearch">
+      <div v-if="isCollapsedSearchOpen" class="collapsedSearchModal" role="dialog" aria-modal="true" :aria-label="searchPlaceholder" @click.self="closeCollapsedSearch">
        <form class="collapsedSearchBar" @submit.prevent="submitGlobalSearch">
          <span class="collapsedSearchBar__icon">
            <img :src="iconSearch" alt="" />
          </span>
-          <input v-model="searchQuery" class="collapsedSearchBar__input" type="search" placeholder="전체 티어표 검색" autofocus />
+          <input v-model="searchQuery" class="collapsedSearchBar__input" type="search" :placeholder="searchPlaceholder" autofocus />
        </form>
      </div>

@@ -410,12 +433,10 @@ function submitGlobalSearch() {

 <style scoped>
 .appShell {
-  min-height: 100vh;
+  min-height: 100dvh;
  display: grid;
  grid-template-columns: var(--left-rail-width, 248px) minmax(0, 1fr) var(--right-rail-width, 320px);
-  background:
-    radial-gradient(circle at top left, rgba(255, 255, 255, 0.04), transparent 28%),
-    linear-gradient(180deg, #1a1a1a 0%, #121212 100%);
+  background: rgba(14, 14, 14, 0.96);
  color: rgba(255, 255, 255, 0.92);
  transition: grid-template-columns 220ms ease;
 }
@@ -426,7 +447,7 @@ function submitGlobalSearch() {

 .leftRail,
 .rightRail {
-  min-height: 100vh;
+  min-height: 100dvh;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(14, 14, 14, 0.92);
  box-sizing: border-box;
@@ -492,7 +513,7 @@ function submitGlobalSearch() {
 }

 .leftRail__body {
-  max-height: calc(100vh - 56px);
+  max-height: calc(100dvh - 56px);
 }

 .rightRail__body {
@@ -557,6 +578,9 @@ function submitGlobalSearch() {
  min-width: 32px;
  width: 32px;
  padding: 0;
+  border: 0;
+  background: transparent;
+  box-shadow: none;
 }

 .appUserCard {
@@ -602,7 +626,9 @@ function submitGlobalSearch() {
  min-width: 0;
  display: grid;
  gap: 4px;
-  transition: opacity 180ms ease;
+  max-width: 180px;
+  overflow: hidden;
+  transition: opacity 180ms ease, max-width 220ms ease, transform 220ms ease;
 }

 .appUserCard__name {
@@ -636,12 +662,14 @@ function submitGlobalSearch() {
 .searchStub__input {
  min-width: 0;
  flex: 1;
+  max-width: 100%;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.92);
  outline: none;
  font: inherit;
-  transition: opacity 180ms ease, width 180ms ease;
+  overflow: hidden;
+  transition: opacity 180ms ease, max-width 220ms ease, transform 220ms ease;
 }

 .searchStub__input::placeholder {
@@ -685,7 +713,10 @@ function submitGlobalSearch() {

 .leftNav__label {
  min-width: 0;
+  max-width: 140px;
  white-space: nowrap;
+  overflow: hidden;
+  transition: opacity 180ms ease, max-width 220ms ease, transform 220ms ease;
 }

 .leftNav__item--active,
@@ -720,13 +751,15 @@ function submitGlobalSearch() {
 .appShell--leftCollapsed .appUserCard__button,
 .appShell--leftCollapsed .appUserCard__guest {
  justify-content: center;
-  padding: 6px 0;
 }

 .appShell--leftCollapsed .appUserCard__meta,
 .appShell--leftCollapsed .leftNav__label,
 .appShell--leftCollapsed .searchStub__input {
-  display: none;
+  opacity: 0;
+  max-width: 0;
+  transform: translateX(-4px);
+  pointer-events: none;
 }

 .appShell--leftCollapsed .appUserCard__avatar {
@@ -736,11 +769,10 @@ function submitGlobalSearch() {

 .appShell--leftCollapsed .searchStub {
  justify-content: center;
-  padding: 10px 0;
 }

 .appShell--leftCollapsed .searchStub__iconButton {
-  width: 100%;
+  width: auto;
 }

 .appShell--leftCollapsed .leftNav {
@@ -749,7 +781,6 @@ function submitGlobalSearch() {

 .appShell--leftCollapsed .leftNav__item {
  justify-content: center;
-  padding: 11px 0;
 }

 .appShell--leftCollapsed .leftRail__bottom {
@@ -785,7 +816,11 @@ function submitGlobalSearch() {

 .appMain {
  min-width: 0;
+  min-height: 0;
  box-sizing: border-box;
+  background: rgba(18, 18, 18, 0.98);
+  border-left: 1px solid rgba(255, 255, 255, 0.08);
+  border-right: 1px solid rgba(255, 255, 255, 0.08);
 }

 .appMain--preview {
@@ -794,8 +829,9 @@ function submitGlobalSearch() {

 .workspace {
  display: grid;
+  grid-template-rows: 56px minmax(0, 1fr);
  gap: 0;
-  min-height: 100vh;
+  min-height: 100dvh;
 }

 .workspace--localRail {
@@ -835,24 +871,44 @@ function submitGlobalSearch() {
  flex-wrap: wrap;
 }

+.viewToggle {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 4px;
+  border-radius: 14px;
+  background: rgba(255, 255, 255, 0.04);
+}
+
+.viewToggle .ghostIcon--iconOnly {
+  width: 36px;
+  height: 36px;
+  min-width: 36px;
+  border-radius: 10px;
+}
+
+.ghostIcon--active {
+  background: rgba(255, 255, 255, 0.08);
+}
+
 .workspaceBody {
-  min-height: calc(100vh - 56px);
-  padding: 0;
+  min-height: 0;
+  padding: 18px 18px 32px;
  border: 0;
  border-radius: 0;
-  background: transparent;
+  background: rgba(24, 24, 24, 0.92);
  box-shadow: none;
-  margin: 18px 18px 0;
+  margin: 0;
 }

 .workspaceBody--localRail {
-  min-height: calc(100vh - 56px);
-  padding: 0;
+  min-height: 0;
+  padding: 18px 18px 32px;
  border: 0;
  border-radius: 0;
-  background: transparent;
+  background: rgba(24, 24, 24, 0.92);
  box-shadow: none;
-  margin: 18px 18px 0;
+  margin: 0;
 }

 .rightRail {
@@ -885,6 +941,60 @@ function submitGlobalSearch() {
  display: none;
 }

+.collapsedSearchModal {
+  position: fixed;
+  inset: 0;
+  z-index: 35;
+  display: flex;
+  justify-content: center;
+  align-items: flex-start;
+  padding: 88px 20px 20px;
+  background: rgba(0, 0, 0, 0.44);
+  backdrop-filter: blur(6px);
+}
+
+.collapsedSearchBar {
+  width: min(520px, calc(100vw - 32px));
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  padding: 18px 22px;
+  border-radius: 24px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  background: rgba(26, 26, 26, 0.96);
+  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.34);
+}
+
+.collapsedSearchBar__icon {
+  width: 28px;
+  height: 28px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex: 0 0 auto;
+}
+
+.collapsedSearchBar__icon img {
+  width: 28px;
+  height: 28px;
+  display: block;
+  filter: brightness(0) saturate(100%) invert(94%) sepia(6%) saturate(207%) hue-rotate(186deg) brightness(96%) contrast(92%);
+}
+
+.collapsedSearchBar__input {
+  min-width: 0;
+  flex: 1;
+  border: 0;
+  background: transparent;
+  color: rgba(255, 255, 255, 0.92);
+  font-size: 18px;
+  font-weight: 700;
+  outline: none;
+}
+
+.collapsedSearchBar__input::placeholder {
+  color: rgba(255, 255, 255, 0.46);
+}

 .localRightRailRoot {
  min-height: auto;
@@ -978,7 +1088,7 @@ function submitGlobalSearch() {
    top: 0;
    right: 0;
    width: min(360px, calc(100vw - 20px));
-    height: 100vh;
+    height: 100dvh;
    z-index: 30;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(14, 14, 14, 0.96);
@@ -996,10 +1106,12 @@ function submitGlobalSearch() {
@media (max-width: 860px) {
  .appShell {
    grid-template-columns: 1fr;
+    min-height: 100dvh;
  }

  .leftRail {
    min-height: auto;
+    height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
@@ -1013,6 +1125,19 @@ function submitGlobalSearch() {
    padding: 12px 14px;
  }

+  .appMain {
+    min-height: auto;
+    border-left: 0;
+    border-right: 0;
+  }
+
+  .workspace,
+  .workspaceBody,
+  .workspaceBody--localRail {
+    min-height: 0;
+    height: auto;
+  }
+
  .leftRail__content {
    overflow: visible;
  }
@@ -1064,10 +1189,11 @@ function submitGlobalSearch() {
  }

  .collapsedSearchModal {
-    padding-top: 72px;
+    padding: 72px 16px 16px;
  }

  .collapsedSearchBar {
+    width: min(100%, calc(100vw - 24px));
    padding: 16px 18px;
    border-radius: 20px;
  }
--- a/frontend/src/lib/api.js
+++ b/frontend/src/lib/api.js
@@ -32,6 +32,8 @@ export const api = {

  listGames: () => request('/api/games'),
  getGame: (gameId) => request(`/api/games/${encodeURIComponent(gameId)}`),
+  favoriteGame: (gameId) => request(`/api/games/${encodeURIComponent(gameId)}/favorite`, { method: 'POST' }),
+  unfavoriteGame: (gameId) => request(`/api/games/${encodeURIComponent(gameId)}/favorite`, { method: 'DELETE' }),
  updateAdminGameDisplayOrder: (payload) => request('/api/admin/games/display-order', { method: 'PATCH', body: payload }),
  updateAdminGameItem: (gameId, itemId, payload) =>
    request(`/api/admin/games/${encodeURIComponent(gameId)}/items/${encodeURIComponent(itemId)}`, { method: 'PATCH', body: payload }),
@@ -42,6 +44,15 @@ export const api = {
  listAdminTierLists: ({ q = '', page = 1, limit = 50 } = {}) =>
    request(`/api/admin/tierlists?q=${encodeURIComponent(q)}&page=${encodeURIComponent(page)}&limit=${encodeURIComponent(limit)}`),
  listAdminTemplateRequests: () => request('/api/admin/template-requests'),
+  getAdminImageAssetStats: ({ month = '', limit = 12 } = {}) => {
+    const query = new URLSearchParams()
+    if (month) query.set('month', month)
+    query.set('limit', String(limit))
+    return request(`/api/admin/image-assets/stats?${query.toString()}`)
+  },
+  resetAdminImageAssetStats: (payload) => request('/api/admin/image-assets/stats/reset', { method: 'POST', body: payload || {} }),
+  listAdminUnusedImageAssets: ({ limit = 100, minAgeHours = 24 } = {}) => request(`/api/admin/image-assets/orphans?limit=${encodeURIComponent(limit)}&minAgeHours=${encodeURIComponent(minAgeHours)}`),
+  cleanupAdminUnusedImageAssets: (payload) => request('/api/admin/image-assets/cleanup', { method: 'POST', body: payload || {} }),
  promoteAdminCustomItem: (itemId, payload) =>
    request(`/api/admin/custom-items/${encodeURIComponent(itemId)}/promote`, { method: 'POST', body: payload }),
  promoteAdminTierListItems: (tierListId, payload) =>
@@ -88,6 +99,7 @@ export const api = {
  favoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'POST' }),
  unfavoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'DELETE' }),
  deleteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}`, { method: 'DELETE' }),
+  duplicateTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/duplicate`, { method: 'POST' }),
  requestTierListTemplate: (id, payload) => request(`/api/tierlists/${encodeURIComponent(id)}/template-request`, { method: 'POST', body: payload }),
  saveTierList: (payload) => request('/api/tierlists', { method: 'POST', body: payload }),
  uploadTierListThumbnail: async (file) => {
--- a/frontend/src/views/AdminView.vue
+++ b/frontend/src/views/AdminView.vue
@@ -29,6 +29,7 @@ const customItemLimit = ref(50)
 const customItemTotal = ref(0)
 const customItemOrphanOnly = ref(false)
 const customItemTargetGameId = ref('')
+const customItemModalTargetGameId = ref('')

 const adminTierLists = ref([])
 const adminTierListQuery = ref('')
@@ -48,11 +49,20 @@ const previewTierList = ref(null)
 const userPasswordModalOpen = ref(false)
 const userDeleteModalOpen = ref(false)
 const userRoleModalOpen = ref(false)
+const customItemModalOpen = ref(false)
+const customItemDeleteModalOpen = ref(false)
 const modalTargetUser = ref(null)
 const modalPasswordDraft = ref('')
 const modalRoleNextAdmin = ref(false)
+const modalTargetCustomItem = ref(null)

 const users = ref([])
+const imageStats = ref(null)
+const imageQueue = ref({ concurrency: 1, activeCount: 0, pendingCount: 0 })
+const imageRecentJobs = ref([])
+const imageStatsMonth = ref('')
+const imageStatsLimit = ref(12)
+const imageResetModalOpen = ref(false)

 const error = ref('')
 const success = ref('')
@@ -61,6 +71,7 @@ const newGameId = ref('')
 const newGameName = ref('')

 const uploadFiles = ref([])
+const uploadItemDrafts = ref([])
 const thumbFile = ref(null)
 const itemPreviewUrls = ref([])
 const isItemDragOver = ref(false)
@@ -76,7 +87,7 @@ const gameCreateModalOpen = ref(false)

 const hasSelectedGame = computed(() => !!selectedGame.value?.game?.id)
 const canApplyThumbnail = computed(() => !!thumbFile.value && !!selectedGameId.value)
-const canAddItem = computed(() => uploadFiles.value.length > 0 && !!selectedGameId.value)
+const canAddItem = computed(() => uploadItemDrafts.value.length > 0 && uploadItemDrafts.value.every((item) => !!item.label.trim()) && !!selectedGameId.value)
 const customItemPageCount = computed(() => Math.max(1, Math.ceil(customItemTotal.value / customItemLimit.value)))
 const adminTierListPageCount = computed(() => Math.max(1, Math.ceil(adminTierListTotal.value / adminTierListLimit.value)))
 const featuredGames = computed(() =>
@@ -161,7 +172,7 @@ const adminOverviewStats = computed(() => {

 onMounted(async () => {
  await auth.refresh()
-  await Promise.all([refreshGames(), refreshCustomItems(), refreshAdminTierLists(), refreshUsers(), refreshTemplateRequests()])
+  await Promise.all([refreshGames(), refreshCustomItems(), refreshAdminTierLists(), refreshUsers(), refreshTemplateRequests(), refreshImageDiagnostics()])
  await syncFeaturedSortable()
 })

@@ -221,15 +232,75 @@ function resetMessages() {
  success.value = ''
 }

+function formatBytes(value) {
+  const size = Number(value || 0)
+  if (!size) return '0 B'
+  const units = ['B', 'KB', 'MB', 'GB']
+  let current = size
+  let unitIndex = 0
+  while (current >= 1024 && unitIndex < units.length - 1) {
+    current /= 1024
+    unitIndex += 1
+  }
+  return `${current >= 10 || unitIndex === 0 ? current.toFixed(0) : current.toFixed(1)} ${units[unitIndex]}`
+}
+
+const imageDiagnosticsCards = computed(() => {
+  const stats = imageStats.value
+  if (!stats) return []
+  return [
+    { label: '실사용 파일', value: `${stats.referencedCount || 0}` },
+    { label: '현재 용량', value: formatBytes(stats.referencedByteSize) },
+    { label: '추적 자산', value: `${stats.trackedReferencedCount || 0}` },
+    { label: '레거시 참조', value: `${stats.legacyReferencedCount || 0}` },
+    { label: '절감 용량', value: formatBytes(stats.savedByteSize) },
+    { label: '절감률', value: `${Math.round((stats.savingsRatio || 0) * 100)}%` },
+  ]
+})
+
+const imageStatsPeriodLabel = computed(() => (imageStatsMonth.value ? `${imageStatsMonth.value} 기준` : '전체 기간'))
+
+async function refreshImageDiagnostics() {
+  try {
+    const data = await api.getAdminImageAssetStats({
+      month: imageStatsMonth.value || '',
+      limit: imageStatsLimit.value,
+    })
+    imageStats.value = data.stats || null
+    imageQueue.value = data.queue || { concurrency: 1, activeCount: 0, pendingCount: 0 }
+    imageRecentJobs.value = data.recentJobs || []
+  } catch (e) {
+    error.value = '이미지 최적화 현황을 불러오지 못했어요.'
+  }
+}
+
+function openImageResetModal() {
+  imageResetModalOpen.value = true
+}
+
+function closeImageResetModal() {
+  imageResetModalOpen.value = false
+}
+
+async function confirmImageReset() {
+  try {
+    const data = await api.resetAdminImageAssetStats({ month: imageStatsMonth.value || null })
+    success.value = imageStatsMonth.value
+      ? `${imageStatsMonth.value} 기록 ${data.deletedCount || 0}건을 정리했어요.`
+      : `전체 최적화 기록 ${data.deletedCount || 0}건을 정리했어요.`
+    closeImageResetModal()
+    await refreshImageDiagnostics()
+  } catch (e) {
+    error.value = '이미지 최적화 기록을 정리하지 못했어요.'
+  }
+}
+
 function setTab(tab) {
  resetMessages()
  activeTab.value = tab
  if (tab === 'tierlists') {
    tierlistsMode.value = 'requests'
  }
-  if (tab === 'items' && !customItemTargetGameId.value && games.value.length) {
-    customItemTargetGameId.value = games.value[0].id
-  }
 }

 function setTierlistsMode(mode) {
@@ -257,9 +328,6 @@ async function refreshGames() {
  try {
    const data = await api.listGames()
    games.value = data.games || []
-    if (!customItemTargetGameId.value && games.value.length) {
-      customItemTargetGameId.value = games.value[0].id
-    }
    featuredGameIds.value = games.value
      .filter((game) => game.displayRank != null)
      .sort((a, b) => a.displayRank - b.displayRank)
@@ -439,6 +507,7 @@ async function refreshUsers() {

 function resetUploadState() {
  uploadFiles.value = []
+  uploadItemDrafts.value = []
  thumbFile.value = null
  resetFileInput('item')
  resetFileInput('thumb')
@@ -539,8 +608,14 @@ function handleItemFiles(fileList) {
  const files = Array.from(fileList || []).filter((file) => (file.type || '').startsWith('image/'))
  uploadFiles.value = files
  clearPreviewUrl('item')
+  uploadItemDrafts.value = []
  if (!files.length) return
  itemPreviewUrls.value = files.map((file) => URL.createObjectURL(file))
+  uploadItemDrafts.value = files.map((file, index) => ({
+    file,
+    previewUrl: itemPreviewUrls.value[index],
+    label: (file.name || '').replace(/\.[^.]+$/, '').replace(/[_-]+/g, ' ').replace(/\s+/g, ' ').trim().slice(0, 60),
+  }))
  resetFileInput('item')
 }

@@ -550,6 +625,7 @@ function openItemFilePicker() {

 function clearItemFiles() {
  uploadFiles.value = []
+  uploadItemDrafts.value = []
  clearPreviewUrl('item')
  resetFileInput('item')
 }
@@ -604,15 +680,18 @@ async function uploadThumbnail() {

 async function uploadItem() {
  resetMessages()
-  if (!uploadFiles.value.length || !selectedGameId.value) {
+  if (!uploadItemDrafts.value.length || !selectedGameId.value) {
    error.value = '아이템 파일을 선택해주세요.'
    return
  }

  try {
    const fd = new FormData()
-    uploadFiles.value.forEach((file) => fd.append('images', file))
-    const uploadCount = uploadFiles.value.length
+    uploadItemDrafts.value.forEach((entry) => {
+      fd.append('images', entry.file)
+      fd.append('labels', entry.label.trim())
+    })
+    const uploadCount = uploadItemDrafts.value.length
    const res = await fetch(toApiUrl(`/api/admin/games/${encodeURIComponent(selectedGameId.value)}/images`), {
      method: 'POST',
      credentials: 'include',
@@ -855,18 +934,44 @@ function moveCustomItemPage(direction) {
  refreshCustomItems()
 }

-async function removeCustomItem(item) {
+function openCustomItemModal(item) {
+  modalTargetCustomItem.value = item || null
+  customItemModalTargetGameId.value = ''
+  customItemModalOpen.value = true
+}
+
+function closeCustomItemModal() {
+  customItemModalOpen.value = false
+  modalTargetCustomItem.value = null
+  customItemModalTargetGameId.value = ''
+}
+
+function openCustomItemDeleteModal(item) {
+  if (!item) return
+  if (item.usageCount > 0) {
+    error.value = '사용 중인 커스텀 이미지는 먼저 참조를 정리해야 삭제할 수 있어요.'
+    return
+  }
+  modalTargetCustomItem.value = item
+  customItemDeleteModalOpen.value = true
+}
+
+function closeCustomItemDeleteModal() {
+  customItemDeleteModalOpen.value = false
+}
+
+async function removeCustomItem(item = modalTargetCustomItem.value) {
  resetMessages()
+  if (!item) return
  if (item.usageCount > 0) {
    error.value = '사용 중인 커스텀 이미지는 먼저 참조를 정리해야 삭제할 수 있어요.'
    return
  }

-  const ok = window.confirm(`"${item.label}" 미사용 커스텀 이미지를 삭제할까요?`)
-  if (!ok) return
-
  try {
    await api.deleteAdminCustomItem(item.id)
+    closeCustomItemDeleteModal()
+    closeCustomItemModal()
    await refreshCustomItems()
    success.value = '미사용 커스텀 이미지를 삭제했어요.'
  } catch (e) {
@@ -890,16 +995,17 @@ async function removeUnusedCustomItems() {

 async function promoteCustomItem(item) {
  resetMessages()
-  if (!customItemTargetGameId.value) {
+  if (!customItemModalTargetGameId.value) {
    error.value = '가져올 게임을 먼저 선택해주세요.'
    return
  }

  try {
    item.isPromoting = true
-    await api.promoteAdminCustomItem(item.id, { gameId: customItemTargetGameId.value })
-    const targetGameName = games.value.find((game) => game.id === customItemTargetGameId.value)?.name || customItemTargetGameId.value
-    if (selectedGameId.value === customItemTargetGameId.value) await loadGame()
+    await api.promoteAdminCustomItem(item.id, { gameId: customItemModalTargetGameId.value })
+    const targetGameName = games.value.find((game) => game.id === customItemModalTargetGameId.value)?.name || customItemModalTargetGameId.value
+    if (selectedGameId.value === customItemModalTargetGameId.value) await loadGame()
+    closeCustomItemModal()
    success.value = `"${item.label}" 아이템을 ${targetGameName} 기본 템플릿으로 추가했어요.`
  } catch (e) {
    error.value = '커스텀 아이템을 기본 템플릿으로 가져오지 못했어요.'
@@ -1206,29 +1312,6 @@ async function saveFeaturedOrder() {
          </template>

            <template v-else-if="activeTab === 'game-admin'">
-          <div class="panel">
-            <div class="sectionHeader">
-              <div>
-                <div class="panel__title">게임 관리</div>
-                <div class="hint hint--tight">등록된 게임을 선택하면 아래에서 썸네일과 기본 아이템을 바로 수정할 수 있어요.</div>
-              </div>
-              <button class="btn btn--primary" @click="openGameCreateModal">새 게임 생성</button>
-            </div>
-
-            <div class="gameManagerGrid">
-              <section class="adminCard">
-                <div class="section__title">등록된 게임 선택</div>
-                <div class="gameManagerCard__body">
-                  <select :value="selectedGameId" class="select" @change="handleSelectedGameChange">
-                    <option value="">게임을 선택해주세요</option>
-                    <option v-for="game in games" :key="game.id" :value="game.id">{{ game.name }} ({{ game.id }})</option>
-                  </select>
-                  <div class="hint hint--tight">선택하면 아래 상세 영역에서 썸네일과 기본 아이템을 바로 수정할 수 있어요.</div>
-                  <div v-if="selectedGameId && !hasSelectedGame && !isGameLoading" class="hint hint--tight">선택된 게임 ID: {{ selectedGameId }}</div>
-                </div>
-              </section>
-            </div>
-          </div>

          <div v-if="isGameLoading" class="panel panel--empty">
            <div class="emptyState">
@@ -1243,37 +1326,9 @@ async function saveFeaturedOrder() {
                <div class="selectedGame__name">{{ selectedGame.game.name }}</div>
                <div class="selectedGame__id">{{ selectedGame.game.id }}</div>
              </div>
-              <div class="detailHead__actions">
-                <button class="btn btn--danger" @click="removeGame">게임 삭제</button>
-              </div>
            </div>

-            <div class="section section--topGrid">
-              <section class="adminCard">
-                <div class="section__title">썸네일 적용</div>
-                <input ref="thumbFileInput" type="file" accept="image/*" class="srOnlyInput" @change="onThumb" />
-                <button
-                  class="thumbDropZone"
-                  :class="{ 'thumbDropZone--active': isThumbDragOver }"
-                  type="button"
-                  @click="openThumbFilePicker"
-                  @dragenter="onThumbDragEnter"
-                  @dragover="onThumbDragOver"
-                  @dragleave="onThumbDragLeave"
-                  @drop="onThumbDrop"
-                >
-                  <img v-if="displayThumbnailUrl" class="selectedThumb" :src="displayThumbnailUrl" :alt="selectedGame.game.name" />
-                  <div v-else class="selectedThumb selectedThumb--empty">대표 썸네일</div>
-                  <div class="thumbDropZone__copy">
-                    <div class="thumbDropZone__title">클릭하거나 드래그해서 썸네일 추가</div>
-                    <div class="thumbDropZone__desc">다른 업로드 화면처럼 이미지 한 장을 바로 지정할 수 있어요.</div>
-                  </div>
-                </button>
-                <div class="uploadControls">
-                  <button class="btn" :disabled="!canApplyThumbnail" @click="uploadThumbnail">썸네일 적용</button>
-                </div>
-              </section>
-
+            <div class="section">
              <section class="adminCard">
                <div class="section__title">기본 아이템 추가</div>
                <div class="itemComposer">
@@ -1295,18 +1350,24 @@ async function saveFeaturedOrder() {
                      </div>
                    </div>
                    <button class="btn" :disabled="!canAddItem" @click="uploadItem">
-                      아이템 {{ uploadFiles.length || 0 }}개 추가
+                      아이템 {{ uploadItemDrafts.length || 0 }}개 추가
                    </button>
                  </div>
                  <div class="itemPreviewCard">
-                    <div v-if="itemPreviewUrls.length" class="itemPreviewGrid">
-                      <div v-for="(previewUrl, index) in itemPreviewUrls.slice(0, 6)" :key="previewUrl" class="itemPreviewFrame">
-                        <img class="itemPreviewImage" :src="previewUrl" :alt="uploadFiles[index]?.name || 'item preview'" />
+                    <div v-if="uploadItemDrafts.length" class="itemDraftList">
+                      <div v-for="draft in uploadItemDrafts" :key="draft.previewUrl || draft.file.name" class="itemDraftRow">
+                        <div class="itemDraftRow__preview">
+                          <img class="itemPreviewImage" :src="draft.previewUrl" :alt="draft.file.name || 'item preview'" />
+                        </div>
+                        <div class="itemDraftRow__body">
+                          <input v-model="draft.label" class="input input--labelEdit input--dense" maxlength="60" placeholder="아이템 이름" />
+                          <div class="hint hint--tight">{{ draft.file.name }}</div>
+                        </div>
                      </div>
                    </div>
                    <div v-else class="itemPreviewEmpty">선택한 기본 아이템 미리보기가 여기에 표시됩니다.</div>
                    <div class="thumbLabel thumbLabel--preview">
-                      {{ uploadFiles.length ? `선택된 파일 ${uploadFiles.length}개` : '아직 선택된 파일이 없어요.' }}
+                      {{ uploadItemDrafts.length ? `추가 예정 아이템 ${uploadItemDrafts.length}개` : '아직 선택된 파일이 없어요.' }}
                    </div>
                  </div>
                </div>
@@ -1336,10 +1397,7 @@ async function saveFeaturedOrder() {
          </div>
            <div v-else class="panel panel--empty">
              <div class="emptyState">
-                <div class="emptyState__title">게임을 선택하면 상세 관리가 열려요.</div>
-                <div class="emptyState__desc">
-                  위에서 기존 게임을 선택하거나 새 게임을 만든 뒤, 같은 화면에서 바로 썸네일과 기본 아이템을 정리할 수 있어요.
-                </div>
+                <div class="emptyState__title">게임을 선택해 주세요.</div>
                <div v-if="selectedGameId" class="hint hint--tight">선택한 게임을 찾지 못했거나 로딩 중 오류가 발생했어요. 다시 선택해보세요.</div>
              </div>
            </div>
@@ -1349,37 +1407,10 @@ async function saveFeaturedOrder() {
          <div class="panel">
            <div v-if="!customItems.length" class="hint">조건에 맞는 커스텀 아이템이 없어요.</div>
            <div v-else class="customItemGrid">
-              <article v-for="item in customItems" :key="item.id" class="customItemCard">
+              <button v-for="item in customItems" :key="item.id" type="button" class="customItemCard" @click="openCustomItemModal(item)">
                <img class="customItemCard__image" :src="toApiUrl(item.src)" :alt="item.label" />
-                <div class="customItemCard__body">
-                  <div class="customItemCard__title" :title="item.label">{{ item.label }}</div>
-                  <div class="customItemCard__metaList">
-                    <div class="customItemCard__metaRow">
-                      <span>파일</span>
-                      <strong :title="item.src.split('/').pop()">{{ item.src.split('/').pop() }}</strong>
-                    </div>
-                    <div class="customItemCard__metaRow">
-                      <span>업로더</span>
-                      <strong :title="item.ownerName">{{ item.ownerName }}</strong>
-                    </div>
-                    <div class="customItemCard__metaRow">
-                      <span>사용 중</span>
-                      <strong>{{ item.usageCount }}개 티어표</strong>
-                    </div>
-                    <div class="customItemCard__metaRow">
-                      <span>등록일</span>
-                      <strong>{{ fmt(item.createdAt) }}</strong>
-                    </div>
-                  </div>
-                  <div class="customItemCard__actions">
-                    <a class="btn btn--small btn--ghost" :href="toApiUrl(item.src)" :download="item.label">이미지 다운로드</a>
-                    <button class="btn btn--small btn--ghost" :disabled="!customItemTargetGameId || item.isPromoting" @click="promoteCustomItem(item)">
-                      {{ item.isPromoting ? '추가중...' : '기본 템플릿에 추가' }}
-                    </button>
-                    <button class="btn btn--small btn--danger" :disabled="item.usageCount > 0" @click="removeCustomItem(item)">개별 삭제</button>
-                  </div>
-                </div>
-              </article>
+                <div class="customItemCard__title" :title="item.label">{{ item.label }}</div>
+              </button>
            </div>

            <div class="pager">
@@ -1423,8 +1454,14 @@ async function saveFeaturedOrder() {
                </div>

                <div v-if="request.type === 'create'" class="templateRequestCard__form">
-                  <input v-model="request.draftGameId" class="input" placeholder="새 게임 ID" />
-                  <input v-model="request.draftGameName" class="input" placeholder="새 게임 이름" />
+                  <label class="templateRequestField">
+                    <span class="templateRequestField__label">게임 이름</span>
+                    <input v-model="request.draftGameName" class="input" placeholder="새 게임 이름" />
+                  </label>
+                  <label class="templateRequestField">
+                    <span class="templateRequestField__label">게임 ID</span>
+                    <input v-model="request.draftGameId" class="input" placeholder="새 게임 ID" />
+                  </label>
                </div>

                <div class="templateRequestCard__actions">
@@ -1457,6 +1494,7 @@ async function saveFeaturedOrder() {
                  <div class="tierAdminCard__head">
                    <div>
                      <div class="tierAdminCard__title">{{ tierList.title }}</div>
+                      <div v-if="tierList.description" class="tierAdminCard__desc">{{ tierList.description }}</div>
                      <div class="tierAdminCard__meta">
                        {{ tierList.gameName || tierList.gameId }} · {{ tierListAuthorDisplayName(tierList) }} · {{ tierListVisibilityLabel(tierList) }}
                      </div>
@@ -1671,6 +1709,74 @@ async function saveFeaturedOrder() {
              </div>
            </div>

+            <div v-if="customItemModalOpen" class="modalOverlay" @click.self="closeCustomItemModal">
+              <div class="modalCard modalCard--customItem" role="dialog" aria-modal="true">
+                <div class="modalCard__titleRow">
+                  <div class="modalCard__title">커스텀 아이템 상세</div>
+                  <button class="btn btn--ghost btn--small" @click="closeCustomItemModal">닫기</button>
+                </div>
+                <div v-if="modalTargetCustomItem" class="customItemModal">
+                  <div class="customItemModal__side">
+                    <img class="customItemModal__image" :src="toApiUrl(modalTargetCustomItem.src)" :alt="modalTargetCustomItem.label" />
+                    <div class="customItemModal__selector">
+                      <span class="customItemModal__label">기본 템플릿에 추가</span>
+                      <select v-model="customItemModalTargetGameId" class="select">
+                        <option value="">게임 선택</option>
+                        <option v-for="game in games" :key="game.id" :value="game.id">{{ game.name }}</option>
+                      </select>
+                    </div>
+                    <div class="customItemModal__linked">
+                      <span class="customItemModal__label">이미 사용 중인 게임</span>
+                      <div v-if="modalTargetCustomItem.linkedGames?.length" class="customItemModal__chips">
+                        <span v-for="game in modalTargetCustomItem.linkedGames" :key="game.id" class="pill">{{ game.name }}</span>
+                      </div>
+                      <div v-else class="hint hint--tight">아직 연결된 게임이 없어요.</div>
+                    </div>
+                  </div>
+                  <div class="customItemModal__body">
+                    <div class="customItemModal__title">{{ modalTargetCustomItem.label }}</div>
+                    <div class="customItemModal__metaList">
+                      <div class="customItemModal__metaRow"><span>파일</span><strong :title="modalTargetCustomItem.src.split('/').pop()">{{ modalTargetCustomItem.src.split('/').pop() }}</strong></div>
+                      <div class="customItemModal__metaRow"><span>업로더</span><strong :title="modalTargetCustomItem.ownerName">{{ modalTargetCustomItem.ownerName }}</strong></div>
+                      <div class="customItemModal__metaRow"><span>사용 중</span><strong>{{ modalTargetCustomItem.usageCount }}개 티어표</strong></div>
+                      <div class="customItemModal__metaRow"><span>등록일</span><strong>{{ fmt(modalTargetCustomItem.createdAt) }}</strong></div>
+                    </div>
+                    <div class="customItemModal__actions">
+                      <a class="btn btn--ghost" :href="toApiUrl(modalTargetCustomItem.src)" :download="modalTargetCustomItem.label">이미지 다운로드</a>
+                      <button class="btn btn--ghost" :disabled="!customItemModalTargetGameId || modalTargetCustomItem.isPromoting" @click="promoteCustomItem(modalTargetCustomItem)">
+                        {{ modalTargetCustomItem.isPromoting ? '추가중...' : '기본 템플릿에 추가' }}
+                      </button>
+                      <button class="btn btn--danger" :disabled="modalTargetCustomItem.usageCount > 0" @click="openCustomItemDeleteModal(modalTargetCustomItem)">삭제</button>
+                    </div>
+                  </div>
+                </div>
+              </div>
+            </div>
+
+            <div v-if="customItemDeleteModalOpen" class="modalOverlay" @click.self="closeCustomItemDeleteModal">
+              <div class="modalCard" role="dialog" aria-modal="true">
+                <div class="modalCard__title">커스텀 아이템 삭제</div>
+                <div class="modalCard__desc">{{ modalTargetCustomItem ? '"' + modalTargetCustomItem.label + '" 이미지를 삭제할까요? 미사용 상태의 이미지에만 삭제를 허용합니다.' : '' }}</div>
+                <div class="modalCard__actions">
+                  <button class="btn btn--ghost" @click="closeCustomItemDeleteModal">취소</button>
+                  <button class="btn btn--danger" @click="removeCustomItem()">삭제</button>
+                </div>
+              </div>
+            </div>
+
+            <div v-if="imageResetModalOpen" class="modalOverlay" @click.self="closeImageResetModal">
+              <div class="modalCard" role="dialog" aria-modal="true">
+                <div class="modalCard__title">최적화 기록 비우기</div>
+                <div class="modalCard__desc">
+                  {{ imageStatsMonth ? `${imageStatsMonth} 기간의 최적화 기록만 삭제합니다.` : '전체 최적화 작업 기록을 비웁니다. 실제 이미지 파일은 삭제되지 않아요.' }}
+                </div>
+                <div class="modalCard__actions">
+                  <button class="btn btn--ghost" @click="closeImageResetModal">취소</button>
+                  <button class="btn btn--danger" @click="confirmImageReset">기록 비우기</button>
+                </div>
+              </div>
+            </div>
+
            <div v-if="previewModalOpen" class="modalOverlay" @click.self="closePreviewModal">
              <div class="modalCard modalCard--preview" role="dialog" aria-modal="true">
                <div class="modalCard__titleRow">
@@ -1704,7 +1810,44 @@ async function saveFeaturedOrder() {
        </div>
      </section>

-      <section v-if="activeTab === 'items'" class="adminSidebar__panel">
+      <section v-if="activeTab === 'game-admin'" class="adminSidebar__panel">
+        <div class="adminSidebar__label">Game</div>
+        <div class="adminSidebar__group">
+          <button class="btn btn--primary" @click="openGameCreateModal">새 게임 생성</button>
+          <select :value="selectedGameId" class="select" @change="handleSelectedGameChange">
+            <option value="">게임을 선택해주세요</option>
+            <option v-for="game in games" :key="game.id" :value="game.id">{{ game.name }} ({{ game.id }})</option>
+          </select>
+          <div v-if="selectedGameId && !hasSelectedGame && !isGameLoading" class="hint hint--tight">선택된 게임 ID: {{ selectedGameId }}</div>
+        </div>
+        <div v-if="hasSelectedGame" class="adminSidebar__group">
+          <div class="selectedGameSidebar__name">{{ selectedGame.game.name }}</div>
+          <div class="selectedGameSidebar__id">{{ selectedGame.game.id }}</div>
+          <input ref="thumbFileInput" type="file" accept="image/*" class="srOnlyInput" @change="onThumb" />
+          <button
+            class="thumbDropZone"
+            :class="{ 'thumbDropZone--active': isThumbDragOver }"
+            type="button"
+            @click="openThumbFilePicker"
+            @dragenter="onThumbDragEnter"
+            @dragover="onThumbDragOver"
+            @dragleave="onThumbDragLeave"
+            @drop="onThumbDrop"
+          >
+            <img v-if="displayThumbnailUrl" class="selectedThumb selectedThumb--sidebar" :src="displayThumbnailUrl" :alt="selectedGame.game.name" />
+            <div v-else class="selectedThumb selectedThumb--empty selectedThumb--sidebar">대표 썸네일</div>
+            <div class="thumbDropZone__copy">
+              <div class="thumbDropZone__title">클릭 or 드래그</div>
+            </div>
+          </button>
+          <div class="adminSidebar__actions adminSidebar__actions--stack">
+            <button class="btn" :disabled="!canApplyThumbnail" @click="uploadThumbnail">썸네일 적용</button>
+            <button class="btn btn--danger" @click="removeGame">게임 삭제</button>
+          </div>
+        </div>
+      </section>
+
+      <section v-else-if="activeTab === 'items'" class="adminSidebar__panel">
        <div class="adminSidebar__label">Filters</div>
        <div class="adminSidebar__group">
          <input v-model="customItemQuery" class="input" placeholder="파일명, 라벨, 업로더 검색" @keydown.enter.prevent="submitCustomItemSearch" />
@@ -1781,6 +1924,62 @@ async function saveFeaturedOrder() {
        </template>
      </section>

+
+      <section class="adminSidebar__panel">
+        <div class="adminSidebar__label">Image Optimization</div>
+        <div class="adminSidebar__group">
+          <input v-model="imageStatsMonth" class="input" type="month" />
+          <select v-model.number="imageStatsLimit" class="select">
+            <option :value="6">최근 6건</option>
+            <option :value="12">최근 12건</option>
+            <option :value="24">최근 24건</option>
+          </select>
+        </div>
+        <div class="adminSidebar__actions adminSidebar__actions--split">
+          <button class="btn btn--ghost" @click="refreshImageDiagnostics">현황 새로고침</button>
+          <button class="btn btn--ghost" @click="openImageResetModal">기록 비우기</button>
+        </div>
+        <div class="hint hint--tight">{{ imageStatsPeriodLabel }}</div>
+        <div v-if="imageDiagnosticsCards.length" class="adminSidebar__stats adminSidebar__stats--grid">
+          <article v-for="stat in imageDiagnosticsCards" :key="stat.label" class="sidebarStat">
+            <span class="sidebarStat__label">{{ stat.label }}</span>
+            <strong class="sidebarStat__value">{{ stat.value }}</strong>
+          </article>
+        </div>
+        <div class="adminSidebar__stats">
+          <div class="sidebarStat">
+            <span class="sidebarStat__label">큐 상태</span>
+            <strong class="sidebarStat__value">{{ imageQueue.activeCount }} 실행 / {{ imageQueue.pendingCount }} 대기</strong>
+          </div>
+          <div class="sidebarStat">
+            <span class="sidebarStat__label">작업 누적</span>
+            <strong class="sidebarStat__value">{{ imageStats?.completedCount || 0 }} 완료 · {{ imageStats?.failedCount || 0 }} 실패</strong>
+          </div>
+          <div class="sidebarStat">
+            <span class="sidebarStat__label">중복 재사용</span>
+            <strong class="sidebarStat__value">{{ imageStats?.reusedCount || 0 }}건</strong>
+          </div>
+          <div class="sidebarStat">
+            <span class="sidebarStat__label">누락 파일</span>
+            <strong class="sidebarStat__value">{{ imageStats?.missingReferencedCount || 0 }}건</strong>
+          </div>
+        </div>
+        <div class="adminSidebar__group">
+          <div class="section__title">최근 최적화 작업</div>
+          <div class="hint hint--tight">현재 {{ imageRecentJobs.length }}건 표시 중</div>
+          <div v-if="!imageRecentJobs.length" class="hint hint--tight">아직 기록된 최적화 작업이 없어요.</div>
+          <div v-else class="imageJobList">
+            <article v-for="job in imageRecentJobs" :key="job.id" class="imageJobRow">
+              <div class="imageJobRow__head">
+                <strong>{{ job.sourceCategory || 'asset' }}</strong>
+                <span class="imageJobRow__status">{{ job.status }}</span>
+              </div>
+              <div class="hint hint--tight">{{ formatBytes(job.originalByteSize) }} → {{ formatBytes(job.optimizedByteSize) }}</div>
+              <div class="hint hint--tight">{{ fmt(job.queuedAt) }}</div>
+            </article>
+          </div>
+        </div>
+      </section>
    </aside>
  </Teleport>
 </template>
@@ -1871,6 +2070,38 @@ async function saveFeaturedOrder() {
    rgba(13, 13, 13, 0.94);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
 }
+
+.adminSidebar__stats--grid {
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 8px;
+}
+
+.imageJobList {
+  display: grid;
+  gap: 8px;
+}
+
+.imageJobRow {
+  border: 1px solid var(--line);
+  border-radius: 14px;
+  padding: 10px 12px;
+  background: rgba(255, 255, 255, 0.02);
+  display: grid;
+  gap: 4px;
+}
+
+.imageJobRow__head {
+  display: flex;
+  justify-content: space-between;
+  gap: 12px;
+  align-items: center;
+  font-size: 12px;
+}
+
+.imageJobRow__status {
+  color: var(--text-muted);
+  text-transform: capitalize;
+}
 .adminSidebar__label {
  font-size: 11px;
  letter-spacing: 0.12em;
@@ -1884,6 +2115,12 @@ async function saveFeaturedOrder() {
  display: grid;
  gap: 10px;
 }
+.adminSidebar__actions--stack .btn {
+  width: 100%;
+}
+.adminSidebar__actions--split {
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
 .adminSidebar__groupTitle {
  font-size: 13px;
  font-weight: 800;
@@ -2114,6 +2351,9 @@ async function saveFeaturedOrder() {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
 }
+.gameManagerGrid--single {
+  grid-template-columns: minmax(0, 1fr);
+}
 .gameManagerCard__body {
  margin-top: 10px;
  display: grid;
@@ -2126,6 +2366,9 @@ async function saveFeaturedOrder() {
  padding: 16px;
  min-width: 0;
 }
+.adminCard--muted {
+  background: rgba(255, 255, 255, 0.02);
+}
 .sectionHeader {
  display: flex;
  gap: 12px;
@@ -2180,6 +2423,11 @@ async function saveFeaturedOrder() {
 .input--labelEdit {
  margin-top: 10px;
 }
+.input--dense {
+  margin-top: 0;
+  padding-top: 9px;
+  padding-bottom: 9px;
+}
 .hint {
  margin-top: 10px;
  opacity: 0.78;
@@ -2291,34 +2539,48 @@ async function saveFeaturedOrder() {
  place-items: center;
  color: rgba(255, 255, 255, 0.62);
 }
-.thumbDropZone {
+.selectedThumb--sidebar {
  width: 100%;
-  display: grid;
-  gap: 14px;
-  justify-items: start;
-  padding: 16px;
+}
+.selectedGameSidebar__name {
+  font-size: 18px;
+  font-weight: 900;
+}
+.selectedGameSidebar__id {
+  font-size: 12px;
+  opacity: 0.68;
+  word-break: break-all;
+}
+.thumbDropZone {
+  position: relative;
+  width: 100%;
+  display: block;
+  padding: 0;
+  overflow: hidden;
  border-radius: 18px;
-  border: 1px dashed rgba(255, 255, 255, 0.18);
+  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  text-align: left;
-  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
+  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
 }
 .thumbDropZone--active {
  border-color: rgba(96, 165, 250, 0.56);
-  background: rgba(96, 165, 250, 0.08);
+  box-shadow: 0 0 0 1px rgba(96, 165, 250, 0.18);
  transform: translateY(-1px);
 }
 .thumbDropZone__copy {
+  position: absolute;
+  inset: auto 0 0 0;
  display: grid;
-  gap: 6px;
+  place-items: center;
+  min-height: 52px;
+  padding: 12px 16px;
+  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(6, 9, 16, 0.86) 46%, rgba(6, 9, 16, 0.94) 100%);
 }
 .thumbDropZone__title {
  font-weight: 900;
-}
-.thumbDropZone__desc {
-  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
-  line-height: 1.5;
+  letter-spacing: 0.01em;
 }
 .itemComposer {
  margin-top: 10px;
@@ -2373,6 +2635,29 @@ async function saveFeaturedOrder() {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
 }
+.itemDraftList {
+  display: grid;
+  gap: 10px;
+}
+.itemDraftRow {
+  display: grid;
+  grid-template-columns: 72px minmax(0, 1fr);
+  gap: 12px;
+  align-items: center;
+}
+.itemDraftRow__preview {
+  width: 72px;
+  height: 72px;
+  overflow: hidden;
+  border-radius: 12px;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  background: rgba(0, 0, 0, 0.18);
+}
+.itemDraftRow__body {
+  min-width: 0;
+  display: grid;
+  gap: 6px;
+}
 .itemPreviewFrame {
  aspect-ratio: 1 / 1;
  border-radius: 12px;
@@ -2435,22 +2720,28 @@ async function saveFeaturedOrder() {
  text-align: center;
 }
 .customItemGrid {
-  margin-top: 14px;
  display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(240px, 280px));
+  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 12px;
-  justify-content: start;
 }
 .customItemCard {
+  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
  display: grid;
-  grid-template-rows: auto 1fr;
-  gap: 14px;
-  padding: 14px;
+  gap: 10px;
+  padding: 10px;
  min-width: 0;
+  text-align: left;
+  cursor: pointer;
+  transition: border-color 0.18s ease, transform 0.18s ease, background 0.18s ease;
+}
+.customItemCard:hover {
+  border-color: rgba(126, 162, 255, 0.42);
+  background: rgba(255, 255, 255, 0.06);
+  transform: translateY(-1px);
 }
 .customItemCard__image {
  width: 100%;
@@ -2460,51 +2751,88 @@ async function saveFeaturedOrder() {
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.18);
 }
-.customItemCard__body {
-  display: grid;
-  gap: 12px;
-  min-width: 0;
-  align-content: start;
-}
-.customItemCard__actions {
-  display: grid;
-  gap: 8px;
-  margin-top: auto;
-}
-.customItemCard__actions > * {
-  width: 100%;
-}
 .customItemCard__title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
-  display: -webkit-box;
-  -webkit-line-clamp: 2;
-  -webkit-box-orient: vertical;
-  word-break: break-word;
-  font-weight: 900;
-  line-height: 1.35;
+  white-space: nowrap;
+  font-weight: 800;
+  font-size: 13px;
+  line-height: 1.3;
+  color: #ffffff;
 }
-.customItemCard__metaList {
+.customItemModal {
+  display: grid;
+  grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
+  gap: 18px;
+  align-items: start;
+}
+.customItemModal__side {
+  display: grid;
+  gap: 12px;
+  min-width: 0;
+}
+.customItemModal__image {
+  width: 100%;
+  aspect-ratio: 1 / 1;
+  object-fit: cover;
+  border-radius: 18px;
+  background: rgba(255, 255, 255, 0.04);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+}
+.customItemModal__body {
+  display: grid;
+  gap: 14px;
+  min-width: 0;
+}
+.customItemModal__selector,
+.customItemModal__linked {
  display: grid;
  gap: 8px;
 }
-.customItemCard__metaRow {
+.customItemModal__label {
+  font-size: 11px;
+  color: rgba(255, 255, 255, 0.52);
+}
+.customItemModal__chips {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+.customItemModal__title {
+  font-size: 19px;
+  font-weight: 900;
+  line-height: 1.35;
+  word-break: break-word;
+}
+.customItemModal__metaList {
  display: grid;
-  gap: 3px;
+  gap: 10px;
+}
+.customItemModal__metaRow {
+  display: grid;
+  gap: 4px;
  min-width: 0;
 }
-.customItemCard__metaRow span {
+.customItemModal__metaRow span {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.46);
 }
-.customItemCard__metaRow strong {
+.customItemModal__metaRow strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
-  color: rgba(255, 255, 255, 0.82);
+  color: rgba(255, 255, 255, 0.84);
+}
+.customItemModal__actions {
+  display: flex;
+  gap: 10px;
+  flex-wrap: wrap;
+}
+.modalCard--customItem {
+  width: min(760px, 100%);
 }
 .pager {
  margin-top: 16px;
@@ -2791,6 +3119,14 @@ async function saveFeaturedOrder() {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
 }
+.templateRequestField {
+  display: grid;
+  gap: 6px;
+}
+.templateRequestField__label {
+  font-size: 11px;
+  color: rgba(255, 255, 255, 0.52);
+}
 .templateRequestCard__actions {
  display: flex;
  gap: 10px;
@@ -2840,6 +3176,15 @@ async function saveFeaturedOrder() {
  font-size: 18px;
  font-weight: 900;
 }
+.tierAdminCard__desc {
+  margin-top: 6px;
+  color: rgba(255, 255, 255, 0.74);
+  line-height: 1.5;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
 .tierAdminCard__meta {
  margin-top: 4px;
  opacity: 0.74;
@@ -2991,6 +3336,9 @@ async function saveFeaturedOrder() {
  .adminHero__stats {
    grid-template-columns: 1fr;
  }
+  .customItemModal {
+    grid-template-columns: 1fr;
+  }
  .adminSidebar {
    display: none;
  }
@@ -3034,19 +3382,22 @@ async function saveFeaturedOrder() {
    font-size: 24px;
  }
  .thumbGrid,
-  .customItemGrid,
  .userList {
    grid-template-columns: 1fr;
  }
+  .customItemGrid {
+    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
+  }
  .tierAdminCard__head {
    display: grid;
  }
  .customItemCard {
    align-items: stretch;
+    padding: 10px;
  }
  .customItemCard__image {
-    width: clamp(72px, 28vw, 120px);
-    flex-basis: 120px;
+    width: 100%;
+    aspect-ratio: 1 / 1;
  }
 }
 </style>
--- a/frontend/src/views/GameHubView.vue
+++ b/frontend/src/views/GameHubView.vue
@@ -15,6 +15,8 @@ const gameName = ref('')
 const tierLists = ref([])
 const error = ref('')
 const query = ref('')
+const brokenThumbnailIds = ref({})
+const isListView = computed(() => route.query.view === 'list')

 function fmt(ts) {
  return new Date(ts).toLocaleDateString(undefined, {
@@ -37,9 +39,15 @@ function avatarFallbackOf(tierList) {
 }

 function tierListThumbnailUrl(tierList) {
+  if (!tierList?.id || brokenThumbnailIds.value[tierList.id]) return ''
  return tierList.thumbnailSrc ? toApiUrl(tierList.thumbnailSrc) : ''
 }

+function handleThumbnailError(tierListId) {
+  if (!tierListId || brokenThumbnailIds.value[tierListId]) return
+  brokenThumbnailIds.value = { ...brokenThumbnailIds.value, [tierListId]: true }
+}
+
 onMounted(async () => {
  await loadTierLists()
 })
@@ -51,6 +59,7 @@ async function loadTierLists() {
      api.searchPublicTierLists(gameId.value, query.value),
    ])
    gameName.value = gameRes.game?.name || gameId.value
+    brokenThumbnailIds.value = {}
    tierLists.value = listRes.tierLists || []
  } catch (e) {
    error.value = '게임 정보를 불러오지 못했어요.'
@@ -96,11 +105,11 @@ function submitSearch() {
      </div>
    </div>
    <div v-if="tierLists.length === 0" class="empty">아직 공개 티어표가 없어요.</div>
-    <div v-else class="list">
-      <article v-for="t in tierLists" :key="t.id" class="boardCard">
-        <button class="boardCard__body" @click="openTierList(t.id)">
+    <div v-else class="list" :class="{ 'list--table': isListView }">
+      <article v-for="t in tierLists" :key="t.id" class="boardCard" :class="{ 'boardCard--list': isListView }">
+        <button class="boardCard__body" :class="{ 'boardCard__body--list': isListView }" @click="openTierList(t.id)">
          <div class="boardCard__thumbWrap">
-            <img v-if="tierListThumbnailUrl(t)" class="boardCard__thumb" :src="tierListThumbnailUrl(t)" :alt="t.title" />
+            <img v-if="tierListThumbnailUrl(t)" class="boardCard__thumb" :src="tierListThumbnailUrl(t)" alt="" @error="handleThumbnailError(t.id)" />
            <div v-else class="boardCard__thumbPlaceholder">대표 썸네일</div>
          </div>
          <div class="boardCard__head">
@@ -213,10 +222,15 @@ function submitSearch() {
 }
 .list {
  display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 18px;
 }
+
+.list--table {
+  grid-template-columns: 1fr;
+}
 .boardCard {
+  min-width: 0;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(62, 62, 62, 0.82);
@@ -233,6 +247,7 @@ function submitSearch() {
  transform: translateY(-2px);
 }
 .boardCard__body {
+  min-width: 0;
  text-align: left;
  padding: 0;
  border: 0;
@@ -242,12 +257,24 @@ function submitSearch() {
  width: 100%;
  display: grid;
 }
+
+.boardCard__body--list {
+  grid-template-columns: 76px minmax(0, 1fr);
+  align-items: center;
+}
 .boardCard__thumbWrap {
+  min-width: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 14px 14px 0;
  box-sizing: border-box;
 }
+
+.boardCard--list .boardCard__thumbWrap {
+  aspect-ratio: auto;
+  height: 100%;
+  padding: 14px 0 14px 14px;
+}
 .boardCard__thumb {
  width: 100%;
  height: 100%;
@@ -255,6 +282,14 @@ function submitSearch() {
  display: block;
  border-radius: 18px;
 }
+
+.boardCard--list .boardCard__thumb,
+.boardCard--list .boardCard__thumbPlaceholder {
+  width: 48px;
+  height: 48px;
+  min-height: 48px;
+  border-radius: 12px;
+}
 .boardCard__thumbPlaceholder {
  width: 100%;
  height: 100%;
@@ -271,21 +306,35 @@ function submitSearch() {
  min-width: 0;
  font-size: 18px;
  line-height: 1.35;
-  white-space: nowrap;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
+  word-break: break-word;
 }
 .boardCard__head {
+  min-width: 0;
  padding: 16px 18px 18px;
  display: grid;
-  gap: 6px;
+  gap: 8px;
+}
+
+.boardCard--list .boardCard__head {
+  height: 100%;
+  padding: 14px 16px 14px 0;
+  align-content: center;
 }
 .boardCard__titleRow,
 .boardCard__metaRow {
-  display: flex;
+  min-width: 0;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
-  align-items: center;
-  justify-content: space-between;
+}
+
+.boardCard__titleRow {
+  align-items: flex-start;
 }

 .boardCard__metaRow {
@@ -293,11 +342,13 @@ function submitSearch() {
 }
 .boardCard__author {
  min-width: 0;
+  max-width: 100%;
  display: inline-flex;
  gap: 7px;
  align-items: center;
  font-size: 13px;
  opacity: 0.86;
+  overflow: hidden;
 }
 .boardCard__authorName {
  min-width: 0;
@@ -323,28 +374,37 @@ function submitSearch() {
 .boardCard__date,
 .favoriteStat {
  flex: 0 0 auto;
+  min-width: 0;
+  max-width: 100%;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.64);
  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }

 .boardCard__date {
  font-size: 10px;
 }
-@media (max-width: 1400px) {
-  .list {
-    grid-template-columns: repeat(3, minmax(0, 1fr));
-  }
-}
-@media (max-width: 1024px) {
-  .list {
-    grid-template-columns: repeat(2, minmax(0, 1fr));
+@media (max-width: 900px) {
+  .boardCard__body--list {
+    grid-template-columns: 1fr;
+  }
+
+  .boardCard--list .boardCard__head {
+    padding: 0 18px 18px;
+  }
+
+  .boardCard--list .boardCard__thumbWrap {
+    padding: 14px 14px 0;
  }
 }
+
@media (max-width: 720px) {
  .list {
    grid-template-columns: 1fr;
  }
+
  .searchBar__input {
    min-width: 0;
    width: 100%;
--- a/frontend/src/views/HomeView.vue
+++ b/frontend/src/views/HomeView.vue
@@ -1,28 +1,71 @@
 <script setup>
-import { computed, onMounted, ref } from 'vue'
-import { useRouter } from 'vue-router'
+import { computed, onMounted, ref, watch } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
 import { api } from '../lib/api'
 import { toApiUrl } from '../lib/runtime'
+import { useAuthStore } from '../stores/auth'

+const route = useRoute()
 const router = useRouter()
+const auth = useAuthStore()

 const items = ref([])
 const error = ref('')
-const games = computed(() => items.value.filter((item) => item.id !== 'freeform'))
+const loadingFavoriteId = ref('')
+const query = computed(() => (typeof route.query.q === 'string' ? route.query.q.trim().toLowerCase() : ''))
+const games = computed(() => {
+  const filtered = items.value
+    .filter((item) => item.id !== 'freeform')
+    .filter((item) => {
+      if (!query.value) return true
+      const haystack = `${item.name || ''} ${item.id || ''}`.toLowerCase()
+      return haystack.includes(query.value)
+    })

-onMounted(async () => {
+  return filtered.slice().sort((a, b) => {
+    if (!!a.isFavorited !== !!b.isFavorited) return a.isFavorited ? -1 : 1
+    const rankA = a.displayRank == null ? Number.MAX_SAFE_INTEGER : a.displayRank
+    const rankB = b.displayRank == null ? Number.MAX_SAFE_INTEGER : b.displayRank
+    if (rankA !== rankB) return rankA - rankB
+    return (a.name || '').localeCompare(b.name || '', 'ko')
+  })
+})
+
+async function loadGames() {
  try {
    const data = await api.listGames()
    items.value = data.games || []
  } catch (e) {
    error.value = '백엔드에 연결할 수 없어요. backend 서버가 실행 중인지 확인해주세요.'
  }
-})
+}
+
+onMounted(loadGames)
+watch(() => auth.user?.id, loadGames)

 function goGame(gameId) {
  router.push(`/games/${gameId}`)
 }

+async function toggleFavorite(game, event) {
+  event?.stopPropagation()
+  if (!auth.user) {
+    router.push(`/login?redirect=${encodeURIComponent(route.fullPath || '/')}`)
+    return
+  }
+  if (!game?.id || loadingFavoriteId.value === game.id) return
+
+  try {
+    loadingFavoriteId.value = game.id
+    const res = game.isFavorited ? await api.unfavoriteGame(game.id) : await api.favoriteGame(game.id)
+    items.value = items.value.map((entry) => (entry.id === game.id ? { ...entry, ...res.game } : entry))
+  } catch (e) {
+    error.value = '즐겨찾기 변경에 실패했어요.'
+  } finally {
+    loadingFavoriteId.value = ''
+  }
+}
+
 function thumbUrl(g) {
  return g.thumbnailSrc ? toApiUrl(g.thumbnailSrc) : ''
 }
@@ -34,22 +77,35 @@ function thumbUrl(g) {
      <div class="pageHead__eyebrow">Workspace</div>
      <h1 class="pageHead__title">Game Library</h1>
      <p class="pageHead__desc">자주 쓰는 게임 템플릿을 빠르게 고르고, 필요하면 바로 커스텀 티어표를 시작할 수 있어요.</p>
+      <p v-if="query" class="pageHead__searchState">"{{ query }}"에 맞는 게임 템플릿만 보고 있어요.</p>
    </div>
  </section>

  <div v-if="error" class="error">{{ error }}</div>
-  <section class="libraryGrid">
-    <button v-for="g in games" :key="g.id" class="libraryCard" @click="goGame(g.id)">
-      <div class="libraryCard__thumbWrap">
+  <TransitionGroup v-if="games.length" name="libraryCard" tag="section" class="libraryGrid">
+    <article v-for="g in games" :key="g.id" class="libraryCard">
+      <button
+        class="libraryCard__favorite"
+        type="button"
+        :class="{ 'libraryCard__favorite--active': g.isFavorited }"
+        :disabled="loadingFavoriteId === g.id"
+        @click.stop="toggleFavorite(g, $event)"
+      >
+        {{ g.isFavorited ? '★' : '☆' }}
+      </button>
+      <button class="libraryCard__main" type="button" @click="goGame(g.id)">
+        <div class="libraryCard__thumbWrap">
        <img v-if="thumbUrl(g)" class="libraryCard__thumb" :src="thumbUrl(g)" :alt="g.name" />
        <div v-else class="libraryCard__thumbFallback">대표 썸네일</div>
      </div>
-      <div class="libraryCard__body">
-        <div class="libraryCard__title">{{ g.name }}</div>
-        <div class="libraryCard__meta">{{ g.id }}</div>
-      </div>
-    </button>
-  </section>
+        <div class="libraryCard__body">
+          <div class="libraryCard__title">{{ g.name }}</div>
+          <div class="libraryCard__meta">{{ g.id }}</div>
+        </div>
+      </button>
+    </article>
+  </TransitionGroup>
+  <div v-else class="libraryEmpty">{{ query ? '검색어에 맞는 게임 템플릿이 없어요.' : '표시할 게임 템플릿이 없어요.' }}</div>
 </template>

 <style scoped>
@@ -66,7 +122,12 @@ function thumbUrl(g) {
  background: rgba(239, 68, 68, 0.1);
  color: rgba(255, 255, 255, 0.92);
 }
+.pageHead__searchState {
+  margin-top: 8px;
+  color: rgba(255, 255, 255, 0.62);
+}
 .libraryCard {
+  position: relative;
  text-align: left;
  padding: 14px;
  border-radius: 22px;
@@ -77,14 +138,41 @@ function thumbUrl(g) {
  display: grid;
  gap: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
-  transition:
-    transform 0.16s ease,
-    background 0.16s ease;
+  transition: transform 0.16s ease, background 0.16s ease;
+  will-change: transform, opacity;
 }
 .libraryCard:hover {
  background: rgba(70, 70, 70, 0.96);
  transform: translateY(-2px);
 }
+.libraryCard__main {
+  display: grid;
+  gap: 12px;
+  padding: 0;
+  border: 0;
+  background: transparent;
+  color: inherit;
+  text-align: left;
+  cursor: pointer;
+}
+.libraryCard__favorite {
+  position: absolute;
+  bottom: 24px;
+  right: 14px;
+  width: 34px;
+  height: 34px;
+  border-radius: 999px;
+  border: 1px solid rgba(255, 255, 255, 0.14);
+  background: rgba(15, 15, 15, 0.72);
+  color: rgba(255, 255, 255, 0.82);
+  font-size: 17px;
+  line-height: 1;
+  cursor: pointer;
+  z-index: 2;
+}
+.libraryCard__favorite--active {
+  color: #ffd86b;
+}
 .libraryCard__thumbWrap {
  width: 100%;
  aspect-ratio: 16 / 9;
@@ -119,6 +207,28 @@ function thumbUrl(g) {
  overflow: hidden;
  text-overflow: ellipsis;
 }
+.libraryCard-move,
+.libraryCard-enter-active,
+.libraryCard-leave-active {
+  transition: transform 280ms ease, opacity 220ms ease;
+}
+
+.libraryCard-enter-from,
+.libraryCard-leave-to {
+  opacity: 0;
+  transform: translateY(10px) scale(0.985);
+}
+
+.libraryCard-leave-active {
+  position: absolute;
+  width: calc(100% - 0px);
+  pointer-events: none;
+}
+
+.libraryEmpty {
+  padding: 20px 0;
+  color: rgba(255, 255, 255, 0.62);
+}
@media (max-width: 1400px) {
  .libraryGrid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
--- a/frontend/src/views/MyTierListsView.vue
+++ b/frontend/src/views/MyTierListsView.vue
@@ -54,18 +54,6 @@ function openList(t) {
  router.push(`/editor/${t.gameId}/${t.id}`)
 }

-async function removeList(t) {
-  error.value = ''
-  try {
-    const ok = window.confirm(`"${t.title}" 티어표를 삭제할까요?`)
-    if (!ok) return
-    await api.deleteTierList(t.id)
-    myLists.value = myLists.value.filter((entry) => entry.id !== t.id)
-    toast.success('티어표를 삭제했어요.')
-  } catch (e) {
-    error.value = '티어표 삭제에 실패했어요.'
-  }
-}
 </script>

 <template>
@@ -101,7 +89,6 @@ async function removeList(t) {
              </div>
            </div>
          </button>
-          <button class="link link--danger" @click="removeList(t)">삭제</button>
        </article>
      </div>
    </div>
@@ -115,25 +102,18 @@ async function removeList(t) {
  border-radius: 0;
  padding: 0;
 }
-.link {
-  padding: 10px 12px;
-  border-radius: 14px;
-  border: 1px solid rgba(255, 255, 255, 0.14);
-  background: rgba(255, 255, 255, 0.06);
-  color: rgba(255, 255, 255, 0.92);
-  cursor: pointer;
-  font-weight: 800;
-}
 .empty {
  opacity: 0.75;
 }
 .list {
  display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(260px, 320px));
+  justify-content: start;
  gap: 18px;
 }
 .boardCard {
  display: grid;
+  min-width: 0;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(62, 62, 62, 0.82);
@@ -184,30 +164,40 @@ async function removeList(t) {
  border-radius: 18px;
 }
 .boardCard__title {
-  font-weight: 900;
+  flex: 1 1 auto;
  min-width: 0;
+  font-weight: 900;
  font-size: 18px;
-  white-space: nowrap;
+  line-height: 1.3;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
  overflow: hidden;
-  text-overflow: ellipsis;
 }
 .boardCard__head {
  padding: 16px 18px 18px;
  display: grid;
-  gap: 6px;
+  gap: 8px;
+  min-width: 0;
 }
 .boardCard__titleRow,
 .boardCard__metaRow {
  display: flex;
  gap: 10px;
+  min-width: 0;
  align-items: center;
  justify-content: space-between;
 }

+.boardCard__titleRow {
+  align-items: flex-start;
+}
+
 .boardCard__metaRow {
  align-items: flex-end;
 }
 .boardCard__author {
+  flex: 1 1 auto;
  min-width: 0;
  display: inline-flex;
  gap: 7px;
@@ -246,21 +236,6 @@ async function removeList(t) {
 .boardCard__date {
  font-size: 10px;
 }
-.link--danger {
-  background: rgba(239, 68, 68, 0.14);
-  border-color: rgba(239, 68, 68, 0.28);
-  margin: 0 18px 18px;
-}
-@media (max-width: 1400px) {
-  .list {
-    grid-template-columns: repeat(3, minmax(0, 1fr));
-  }
-}
-@media (max-width: 1024px) {
-  .list {
-    grid-template-columns: repeat(2, minmax(0, 1fr));
-  }
-}
@media (max-width: 720px) {
  .list {
    grid-template-columns: 1fr;
--- a/frontend/src/views/TierEditorView.vue
+++ b/frontend/src/views/TierEditorView.vue
@@ -24,7 +24,6 @@ const groups = ref([
  { id: 'gA', name: 'A', itemIds: [] },
  { id: 'gB', name: 'B', itemIds: [] },
  { id: 'gC', name: 'C', itemIds: [] },
-  { id: 'gD', name: 'D', itemIds: [] },
 ])

 const pool = ref([])
@@ -43,11 +42,16 @@ const isExporting = ref(false)
 const isSaveModalOpen = ref(false)
 const isTemplateRequestModalOpen = ref(false)
 const isTemplateUpdateModalOpen = ref(false)
+const templateRequestDraftTitle = ref('')
+const templateRequestDraftDescription = ref('')
 const isDeleteModalOpen = ref(false)
 const ownerId = ref('')
 const authorName = ref('')
 const authorAccountName = ref('')
 const updatedAt = ref(0)
+const sourceTierListId = ref('')
+const sourceSnapshotTitle = ref('')
+const sourceSnapshotAuthor = ref('')
 const isDragActive = ref(false)
 const isThumbnailDragActive = ref(false)
 const iconSize = ref(80)
@@ -94,6 +98,14 @@ const untitledWarning = computed(
    '제목 없이 저장된 티어표는 무분별한 도배 방지를 위해 관리자에 의해 임의 삭제될 수 있어요.'
 )
 const canFavorite = computed(() => !!auth.user && !isNewTierList.value && !canEdit.value)
+const canDuplicate = computed(() => !!auth.user && !isNewTierList.value && !canEdit.value)
+const copiedFromLabel = computed(() => {
+  if (!sourceTierListId.value) return ''
+  const parts = []
+  if (sourceSnapshotTitle.value) parts.push(`원본 ${sourceSnapshotTitle.value}`)
+  if (sourceSnapshotAuthor.value) parts.push(sourceSnapshotAuthor.value)
+  return parts.join(' · ') || '복사해 온 티어표'
+})
 const customItems = computed(() =>
  Object.values(itemsById.value)
    .filter((item) => item?.origin === 'custom')
@@ -112,7 +124,8 @@ const templateRequestChecks = computed(() => [
    passed: !!(title.value || '').trim() && (title.value || '').trim() !== (gameName.value || '').trim(),
  },
 ])
-const canSubmitTemplateCreateRequest = computed(() => templateRequestChecks.value.every((item) => item.passed))
+const canSubmitTemplateCreateRequest = computed(() => templateRequestChecks.value.every((item) => item.passed) && !!templateRequestDraftTitle.value.trim() && !!templateRequestDraftDescription.value.trim())
+const canSubmitTemplateUpdateRequest = computed(() => !!templateRequestDraftTitle.value.trim() && !!templateRequestDraftDescription.value.trim())
 const templateRequestTargetLabel = computed(() => (gameId.value === 'freeform' ? '새로운 템플릿' : (gameName.value || gameId.value || '선택한 게임')))

 watch(error, (message) => {
@@ -471,6 +484,9 @@ function buildPayload(existingId) {
    description: (description.value || '').trim(),
    isPublic: !!isPublic.value,
    showCharacterNames: !!showCharacterNames.value,
+    sourceTierListId: sourceTierListId.value || '',
+    sourceSnapshotTitle: sourceSnapshotTitle.value || '',
+    sourceSnapshotAuthor: sourceSnapshotAuthor.value || '',
    groups: groups.value.map((g) => ({ id: g.id, name: g.name, itemIds: g.itemIds })),
    pool: Object.values(itemsById.value),
  }
@@ -510,20 +526,29 @@ function closeSaveModal() {
  isSaveModalOpen.value = false
 }

+function resetTemplateRequestDrafts() {
+  templateRequestDraftTitle.value = ''
+  templateRequestDraftDescription.value = ''
+}
+
 function openTemplateRequestModal() {
+  resetTemplateRequestDrafts()
  isTemplateRequestModalOpen.value = true
 }

 function closeTemplateRequestModal() {
  isTemplateRequestModalOpen.value = false
+  resetTemplateRequestDrafts()
 }

 function openTemplateUpdateModal() {
+  resetTemplateRequestDrafts()
  isTemplateUpdateModalOpen.value = true
 }

 function closeTemplateUpdateModal() {
  isTemplateUpdateModalOpen.value = false
+  resetTemplateRequestDrafts()
 }

 function openDeleteModal() {
@@ -550,6 +575,19 @@ async function confirmDeleteTierList() {
  }
 }

+async function duplicateCurrentTierList() {
+  if (!canDuplicate.value) return
+  try {
+    const data = await api.duplicateTierList(tierListId.value)
+    const duplicatedId = data.tierList?.id
+    if (!duplicatedId) throw new Error('duplicate_failed')
+    toast.success('티어표를 복사해 내 작업으로 가져왔어요.')
+    router.push(`/editor/${gameId.value}/${duplicatedId}`)
+  } catch (e) {
+    error.value = '티어표 복사에 실패했어요.'
+  }
+}
+
 async function toggleFavorite() {
  if (!canFavorite.value || isFavoriteBusy.value) return
  try {
@@ -574,7 +612,11 @@ async function requestTemplate(type) {
  try {
    isRequestingTemplate.value = true
    const persisted = await persistTierList({ showModal: false })
-    await api.requestTierListTemplate(persisted.savedTierListId, { type })
+    await api.requestTierListTemplate(persisted.savedTierListId, {
+      type,
+      requestTitle: templateRequestDraftTitle.value.trim(),
+      requestDescription: templateRequestDraftDescription.value.trim(),
+    })
    if (type === 'create') closeTemplateRequestModal()
    if (type === 'update') closeTemplateUpdateModal()
    toast.success(type === 'create' ? '템플릿 등록 요청을 보냈어요.' : '템플릿 업데이트 요청을 보냈어요.')
@@ -638,6 +680,9 @@ onMounted(() => {
        authorName.value = t.authorName || ''
        authorAccountName.value = t.authorAccountName || ''
        updatedAt.value = Number(t.updatedAt || 0)
+        sourceTierListId.value = t.sourceTierListId || ''
+        sourceSnapshotTitle.value = t.sourceSnapshotTitle || ''
+        sourceSnapshotAuthor.value = t.sourceSnapshotAuthor || ''
        favoriteCount.value = Number(t.favoriteCount || 0)
        isFavorited.value = !!t.isFavorited
        groups.value = t.groups
@@ -684,7 +729,7 @@ onUnmounted(() => {
      <div v-if="pool.length" class="previewOnly__pool">
        <div class="previewOnly__poolTitle">남은 아이템</div>
        <div class="previewOnly__poolGrid">
-          <div v-for="id in pool" :key="id" class="previewOnly__poolItem">
+          <div v-for="id in pool" :key="id" class="previewOnly__poolItem previewOnly__poolItem--inactive">
            <img :src="resolveItemSrc(itemsById[id])" class="thumb" :alt="itemsById[id]?.label || id" />
          </div>
        </div>
@@ -722,7 +767,18 @@ onUnmounted(() => {
        </div>
      </div>
      <div class="requestChecklist__hint">
-        제목만 명확하게 적어두면 관리자가 어떤 게임 템플릿 요청인지 빠르게 파악할 수 있어요. 여러 사용자가 비슷한 주제로 요청할 수 있으니 게임 이름을 구체적으로 적어주세요.
+        제목과 설명을 함께 적어두면 관리자가 어떤 신규 템플릿인지 훨씬 빠르게 파악할 수 있어요.
+        예시: 제목 `템플릿 등록 요청`, 설명 `여름 이벤트 한정 캐릭터 중심으로 새 게임 템플릿이 필요합니다.`
+      </div>
+      <div class="templateRequestDraft">
+        <label class="templateRequestDraft__field">
+          <span class="templateRequestDraft__label">요청 제목</span>
+          <input v-model="templateRequestDraftTitle" class="templateRequestDraft__input" maxlength="80" placeholder="예: 템플릿 등록 요청" />
+        </label>
+        <label class="templateRequestDraft__field">
+          <span class="templateRequestDraft__label">요청 설명</span>
+          <textarea v-model="templateRequestDraftDescription" class="templateRequestDraft__input templateRequestDraft__textarea" maxlength="240" placeholder="예: 여름 이벤트 한정 캐릭터 추가용으로 신규 템플릿이 필요합니다." />
+        </label>
      </div>
      <div class="modalCard__actions">
        <button class="btn btn--ghost" @click="closeTemplateRequestModal">취소</button>
@@ -741,10 +797,21 @@ onUnmounted(() => {
      </div>
      <div class="modalCard__note">
        모두가 사용하는 기본 템플릿이니 개인적인 항목이 아닌 공통된 항목만 추가한 뒤 신청해주세요.
+        예시: 제목 `템플릿 업데이트 요청`, 설명 `여름 이벤트 한정 캐릭터 추가`
+      </div>
+      <div class="templateRequestDraft">
+        <label class="templateRequestDraft__field">
+          <span class="templateRequestDraft__label">요청 제목</span>
+          <input v-model="templateRequestDraftTitle" class="templateRequestDraft__input" maxlength="80" placeholder="예: 템플릿 업데이트 요청" />
+        </label>
+        <label class="templateRequestDraft__field">
+          <span class="templateRequestDraft__label">요청 설명</span>
+          <textarea v-model="templateRequestDraftDescription" class="templateRequestDraft__input templateRequestDraft__textarea" maxlength="240" placeholder="예: 여름 이벤트 한정 캐릭터 추가" />
+        </label>
      </div>
      <div class="modalCard__actions">
        <button class="btn btn--ghost" @click="closeTemplateUpdateModal">요청 취소</button>
-        <button class="btn btn--save" :disabled="isRequestingTemplate" @click="requestTemplate('update')">
+        <button class="btn btn--save" :disabled="!canSubmitTemplateUpdateRequest || isRequestingTemplate" @click="requestTemplate('update')">
          {{ isRequestingTemplate ? '요청중...' : '예, 요청할게요' }}
        </button>
      </div>
@@ -779,6 +846,10 @@ onUnmounted(() => {
              공개된 티어표를 보는 중입니다. 로그인한 작성자만 수정할 수 있어요.
            </template>
          </div>
+          <div v-if="sourceTierListId" class="editorMain__sourceNote">
+            <span>복사본</span>
+            <button class="editorMain__sourceLink" type="button" @click="router.push(`/editor/${gameId}/${sourceTierListId}`)">{{ copiedFromLabel }}</button>
+          </div>
        </div>
      </section>

@@ -874,9 +945,10 @@ onUnmounted(() => {
            {{ canEdit ? '등록된 아이템 리스트입니다. 드래그해서 표에 넣을 수 있습니다.' : '공개 티어표는 보기 전용입니다.' }}
          </div>
          <div ref="poolEl" class="pool" data-list-type="pool">
-            <div v-for="id in pool" :key="id" class="poolItem" :data-item-id="id">
+            <div v-for="id in pool" :key="id" class="poolItem" :class="{ 'poolItem--readonly': !canEdit }" :data-item-id="id">
              <img :src="resolveItemSrc(itemsById[id])" class="thumb" :alt="itemsById[id]?.label || id" />
              <div class="poolItem__label">{{ itemsById[id]?.label || id }}</div>
+              <div v-if="!canEdit" class="poolItem__state">미배치</div>
            </div>
          </div>
        </div>
@@ -952,13 +1024,15 @@ onUnmounted(() => {
      </div>

      <div class="editorSidebar__section editorSidebar__section--footer">
-        <label class="toggle" :class="{ 'toggle--disabled': !canEdit }">
+        <label class="toggleSwitch" :class="{ 'toggleSwitch--disabled': !canEdit }">
          <input v-model="isPublic" type="checkbox" :disabled="!canEdit" />
-          <span>공개</span>
+          <span class="toggleSwitch__label">공개</span>
+          <span class="toggleSwitch__track"><span class="toggleSwitch__thumb"></span></span>
        </label>
-        <label class="toggle" :class="{ 'toggle--disabled': !canEdit }">
+        <label class="toggleSwitch" :class="{ 'toggleSwitch--disabled': !canEdit }">
          <input v-model="showCharacterNames" type="checkbox" :disabled="!canEdit" />
-          <span>캐릭터 이름 표시</span>
+          <span class="toggleSwitch__label">캐릭터 이름 표시</span>
+          <span class="toggleSwitch__track"><span class="toggleSwitch__thumb"></span></span>
        </label>
        <div class="editorSidebar__actionGrid">
          <button class="btn btn--ghost editorSidebar__button" @click="downloadImage">이미지 다운로드</button>
@@ -966,6 +1040,7 @@ onUnmounted(() => {
        </div>
        <div class="editorSidebar__utilityLinks">
          <button v-if="canEdit && !isNewTierList" class="editorSidebar__utilityLink editorSidebar__utilityLink--danger" @click="openDeleteModal">삭제하기</button>
+          <button v-if="canDuplicate" class="editorSidebar__utilityLink" @click="duplicateCurrentTierList">복사해서 내 티어표로 가져오기</button>
          <button
            v-if="canRequestTemplateCreate"
            class="editorSidebar__utilityLink"
@@ -1016,6 +1091,23 @@ onUnmounted(() => {
  font-size: 13px;
  line-height: 1.5;
 }
+.editorMain__sourceNote {
+  margin-top: 4px;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+  font-size: 12px;
+  color: rgba(255, 255, 255, 0.62);
+}
+.editorMain__sourceLink {
+  border: 0;
+  padding: 0;
+  background: transparent;
+  color: rgba(191, 219, 254, 0.94);
+  font: inherit;
+  cursor: pointer;
+}
 .previewOnly {
  min-height: 100vh;
  padding: 20px;
@@ -1094,23 +1186,60 @@ onUnmounted(() => {
  display: inline-flex;
  position: relative;
 }
-.toggle {
+.previewOnly__poolItem--inactive {
+  opacity: 0.52;
+  filter: grayscale(0.22) brightness(0.78);
+}
+.toggleSwitch {
  display: inline-flex;
-  gap: 8px;
  align-items: center;
-  padding: 8px 10px;
-  border-radius: 12px;
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  background: rgba(0, 0, 0, 0.12);
-  font-weight: 800;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 10px 12px;
+  border-radius: 14px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  user-select: none;
 }
-.toggle input {
-  width: 16px;
-  height: 16px;
+.toggleSwitch input {
+  position: absolute;
+  opacity: 0;
+  pointer-events: none;
 }
-.toggle--disabled {
+.toggleSwitch__track {
+  position: relative;
+  width: 42px;
+  height: 24px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.16);
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  transition: background 180ms ease, border-color 180ms ease;
+  flex: 0 0 auto;
+}
+.toggleSwitch__thumb {
+  position: absolute;
+  top: 2px;
+  left: 2px;
+  width: 18px;
+  height: 18px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.94);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.24);
+  transition: transform 180ms ease;
+}
+.toggleSwitch__label {
+  font-weight: 800;
+  color: rgba(255, 255, 255, 0.9);
+}
+.toggleSwitch input:checked ~ .toggleSwitch__track {
+  background: rgba(96, 165, 250, 0.34);
+  border-color: rgba(96, 165, 250, 0.42);
+}
+.toggleSwitch input:checked ~ .toggleSwitch__track .toggleSwitch__thumb {
+  transform: translateX(18px);
+}
+.toggleSwitch--disabled {
  opacity: 0.55;
  pointer-events: none;
 }
@@ -1253,6 +1382,42 @@ onUnmounted(() => {
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.78;
+  white-space: pre-line;
+}
+.templateRequestDraft {
+  display: grid;
+  gap: 12px;
+}
+.templateRequestDraft__field {
+  display: grid;
+  gap: 6px;
+}
+.templateRequestDraft__label {
+  font-size: 12px;
+  color: rgba(255, 255, 255, 0.64);
+}
+.templateRequestDraft__input {
+  width: 100%;
+  padding: 14px 0;
+  border: 0;
+  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
+  background: transparent;
+  color: rgba(255, 255, 255, 0.94);
+  outline: none;
+  font-size: 18px;
+  line-height: 1.5;
+  letter-spacing: -0.02em;
+  resize: none;
+}
+.templateRequestDraft__input:focus {
+  border-bottom-color: rgba(96, 165, 250, 0.9);
+}
+.templateRequestDraft__input::placeholder {
+  color: rgba(255, 255, 255, 0.34);
+}
+.templateRequestDraft__textarea {
+  min-height: 92px;
+  resize: vertical;
 }
 .boardTools {
  display: flex;
@@ -1737,6 +1902,10 @@ onUnmounted(() => {
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(0, 0, 0, 0.18);
 }
+.poolItem--readonly {
+  opacity: 0.58;
+  filter: grayscale(0.25) brightness(0.78);
+}
 .poolItem .thumb {
  width: 100%;
  max-width: var(--thumb-size, 80px);
@@ -1755,6 +1924,13 @@ onUnmounted(() => {
  text-overflow: ellipsis;
  white-space: nowrap;
 }
+.poolItem__state {
+  font-size: 10px;
+  font-weight: 800;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  color: rgba(255, 255, 255, 0.58);
+}
 .hidden {
  display: none;
 }
Author	SHA1	Message	Date
zenn	fde62dbb43	릴리스: v1.3.5 이미지 최적화 대시보드 기간 필터와 실사용 통계	2026-03-31 18:23:06 +09:00
zenn	a5c632d9ae	관리자 이미지 최적화 대시보드 추가	2026-03-31 17:58:21 +09:00
zenn	a19606c516	미사용 이미지 자산 정리 배치 추가	2026-03-31 17:50:11 +09:00
zenn	0581de6c17	이미지 최적화 작업 큐 추가	2026-03-31 17:44:03 +09:00
zenn	4db1b21ad5	중복 이미지 해시 재사용 추가	2026-03-31 17:39:54 +09:00
zenn	d760c7331a	업로드 이미지 WebP 최적화 1차 적용	2026-03-31 17:33:52 +09:00
zenn	ebe7a4408f	릴리스: v1.2.73 게임 허브 리스트 마감 보정	2026-03-31 17:13:28 +09:00
zenn	2fba826900	릴리스: v1.2.72 게임 허브 보기 전환과 카드 보정	2026-03-31 17:07:21 +09:00
zenn	5b047b0458	릴리스: v1.2.71 공개 티어표 복사와 보기 상태 보정	2026-03-31 16:52:17 +09:00
zenn	6dce53db7a	릴리스: v1.2.70 관리자 게임 관리 레이아웃 정리	2026-03-31 16:35:43 +09:00
zenn	3227181c24	릴리스: v1.2.69 관리자 게임 관리 재배치와 셸 전환 보정	2026-03-31 16:28:37 +09:00
zenn	fadfd0ba58	릴리스: v1.2.68 기본 티어 줄 수와 셸 아이콘 버튼 정리	2026-03-31 16:09:49 +09:00
zenn	f77ce2a580	릴리스: v1.2.67 홈 즐겨찾기 재정렬 애니메이션 추가	2026-03-31 16:06:20 +09:00
zenn	50773f799a	릴리스: v1.2.66 내 티어표 카드 밀도와 액션 단순화	2026-03-31 16:02:00 +09:00
zenn	0b283276ce	릴리스: v1.2.65 축소 검색 모달과 에디터 토글 동작 보정	2026-03-31 15:53:02 +09:00
zenn	6105208aef	릴리스: v1.2.64 에디터 토글과 요청 모달 입력 스타일 보정	2026-03-31 15:41:53 +09:00
zenn	f6dc64dfc8	릴리스: v1.2.63 메인 영역 잘림과 셸 높이 계산 보정	2026-03-31 15:36:01 +09:00
zenn	40a8dac7b6	릴리스: v1.2.62 셸 배경과 템플릿 입력 스타일 정리	2026-03-31 15:31:25 +09:00
zenn	faa2a01f6c	릴리스: v1.2.61 게임 템플릿 검색과 즐겨찾기 추가	2026-03-31 15:26:41 +09:00
zenn	2cdd627658	릴리스: v1.2.60 템플릿 요청 제목 설명 분리	2026-03-31 15:15:18 +09:00
zenn	34ddd1083d	릴리스: v1.2.59 관리자 아이템 모달 게임 표시 보강	2026-03-31 15:07:57 +09:00
zenn	b5ec579e5d	릴리스: v1.2.58 관리자 아이템 관리 compact 카드 전환	2026-03-31 15:00:07 +09:00