diff --git a/package.json b/package.json
index 51ceb5ff3..446aa1fc0 100644
--- a/package.json
+++ b/package.json
@@ -93,6 +93,7 @@
     "check:game-distribution-fork-authorization-e2e": "node scripts/check-game-distribution-fork-authorization-e2e.mjs",
     "check:game-distribution-lineage-e2e": "node scripts/check-game-distribution-lineage-e2e.mjs",
     "check:game-distribution-project-bundle-e2e": "node scripts/check-game-distribution-project-bundle-e2e.mjs",
+    "check:game-distribution-collection-e2e": "node scripts/check-game-distribution-collection-e2e.mjs",
     "check:production-ops": "node scripts/check-production-ops-guardrails.mjs",
     "check:preview-deployer": "node scripts/check-preview-deployer.mjs",
     "check:maintenance-page": "node scripts/check-maintenance-page.mjs",
diff --git a/scripts/check-game-distribution-collection-e2e.mjs b/scripts/check-game-distribution-collection-e2e.mjs
new file mode 100644
index 000000000..054454372
--- /dev/null
+++ b/scripts/check-game-distribution-collection-e2e.mjs
@@ -0,0 +1,766 @@
+// 游戏分发「收藏（收录）」链路真实行为验收。
+//
+// 需要完整本地 dev 栈（`npm run dev`：SpacetimeDB standalone + api-server）+ 管理员账号；不需要浏览器。
+//
+// 用法：
+//   E2E_ADMIN_USER=<管理员> E2E_ADMIN_PASSWORD=<密码> \
+//     node scripts/check-game-distribution-collection-e2e.mjs
+//   E2E_API_BASE 可覆盖 api-server 地址（默认从 CWD 的 .app/dev-stack.json 读取，不写死端口）
+//
+// 契约来源（逐条读实现确认，未按描述猜）：
+//   [1] 三条路由（Bearer + no-store）：api-server/src/modules/game_distribution.rs:340-352
+//   [2] PUT 收藏：同文件 :1393-1426（幂等键必填、响应 `{collected, replayed}`）
+//       — 请求摘要绑定 `(user_id, game_id)`：:1380-1385
+//   [3] DELETE 取消收藏：同文件 :1428-1461（不要求幂等键；不存在也算成功；响应只有 `collected`）
+//   [4] GET 我的收藏：同文件 :1465-1481 + `my_collections_payload` :1487-1497（`{games, nextCursor:null}`）
+//   [5] 公开详情按可选登录态加 `collected`：同文件 :1305-1373（匿名 / 无效 token → **不加键**）
+//   [6] 事务语义：spacetime-module/src/game_distribution.rs:4669-4783
+//       — 不存在 → 「作品不存在」（→ 404）；存在但不可读 → `GAME_DISTRIBUTION_COLLECTION_STATE_CONFLICT`（→ 409）
+//       — 收据键 `(user_id, action, idempotency_key)`，摘要不一致 → 「幂等键对应的请求摘要不一致」（→ 409）
+//       — 收藏行主键 `{user_id}:{game_id}`，重复收藏不产生第二行
+//       — 取消收藏按确定性主键删除，未收藏也成功
+//   [7] 语义常量：shared-contracts/src/game_distribution.rs:33-34
+//       （文案刻意不含「不存在」/「已被删除」，避免命中 404 分支泄露未公开作品的存在性）
+//
+// 复用/照抄的 helper（注释里标了出处；抽公共模块会改动其它已提交脚本，故照抄）：
+//   - 从 .app/dev-stack.json 读地址：scripts/check-game-distribution-lineage-e2e.mjs:115-133
+//   - check/note/api/brief/register/gameMetadata/uploadCover/createGame/ownerGame：lineage 脚本 :139-318
+//   - publishToPublic（建版本 → 传发行包 → 送审 → 管理员通过）：lineage 脚本 :320-407
+//     （顺序与请求体源自 media-e2e.mjs:431-495,523-527,561-573）
+//
+// 与工单描述不一致、按实现断言并在报告里标注的地方：
+//   - 工单说「同键不同请求（换作品 / 换用户）→ 409」。实测 **换作品** 是 409（同一收据键、摘要不同），
+//     但 **换用户** 不会命中别人的收据（收据键含 user_id），因此是正常 200 新收藏。api-server 的
+//     handler 注释写「换用户也是 409」，与同一提交里 spacetime-module 的注释（「不同用户 / 不同作品
+//     即使共用同一个 Idempotency-Key 也不会互相命中」）相反；本脚本按后者（= 实测）断言。
+
+import { createHash } from 'node:crypto';
+import { readFileSync } from 'node:fs';
+import path from 'node:path';
+
+import JSZip from 'jszip';
+
+const ENVELOPE = { 'x-genarrative-response-envelope': 'v1' };
+const ADMIN_USER = (process.env.E2E_ADMIN_USER ?? '').trim();
+const ADMIN_PASSWORD = process.env.E2E_ADMIN_PASSWORD ?? '';
+const DEV_PASSWORD = 'GenE2e123!';
+const GATE_KEY = 'game-distribution:publish';
+
+if (!ADMIN_USER || !ADMIN_PASSWORD) {
+  console.error(
+    '缺少 E2E_ADMIN_USER / E2E_ADMIN_PASSWORD：本脚本要按发布灰度口径打开 ' +
+      'game-distribution:publish 写入口并把作品推到公开（收藏要求作品公开可读）。',
+  );
+  process.exit(2);
+}
+
+const devStack = JSON.parse(
+  readFileSync(path.resolve(process.cwd(), '.app/dev-stack.json'), 'utf8'),
+);
+const API = (
+  process.env.E2E_API_BASE ??
+  devStack.services?.['api-server']?.url ??
+  ''
+).replace(/\/+$/u, '');
+if (!API) {
+  console.error(
+    '无法从 .app/dev-stack.json 解析 api-server 地址：请先 `npm run dev` 启动本地栈，' +
+      '或用 E2E_API_BASE 显式指定。',
+  );
+  process.exit(2);
+}
+
+let checks = 0;
+let failures = 0;
+const skipped = 0;
+function check(name, ok, detail = '') {
+  checks += 1;
+  if (!ok) failures += 1;
+  console.log(
+    `${ok ? 'PASS' : 'FAIL'}  ${name}${detail ? ` :: ${detail}` : ''}`,
+  );
+}
+function note(message) {
+  console.log(`NOTE  ${message}`);
+}
+
+const COVER_PNG = Buffer.from(
+  'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg==',
+  'base64',
+);
+
+async function api(pathname, options = {}) {
+  const { method = 'GET', token, body, headers = {}, binary } = options;
+  const finalHeaders = { ...ENVELOPE, ...headers };
+  if (token) finalHeaders.Authorization = `Bearer ${token}`;
+  let finalBody;
+  if (binary) {
+    finalBody = binary;
+  } else if (body !== undefined) {
+    finalHeaders['Content-Type'] = 'application/json';
+    finalBody = JSON.stringify(body);
+  }
+  const response = await fetch(`${API}${pathname}`, {
+    method,
+    headers: finalHeaders,
+    body: finalBody,
+    signal: AbortSignal.timeout(120_000),
+  });
+  const text = await response.text();
+  let json = null;
+  try {
+    json = JSON.parse(text);
+  } catch {
+    json = null;
+  }
+  return {
+    status: response.status,
+    text,
+    json,
+    data: json?.data,
+    error: json?.error,
+    cacheControl: response.headers.get('cache-control') ?? '',
+  };
+}
+
+function brief(body) {
+  const code = body?.error?.code ?? body?.json?.error?.code ?? '';
+  return `status=${body?.status} code=${code} text=${String(body?.text ?? '').slice(0, 220)}`;
+}
+
+async function register(prefix) {
+  const phone = `${prefix}${String(Date.now()).slice(-8)}`;
+  const response = await api('/api/auth/entry', {
+    method: 'POST',
+    body: { purePhoneNumber: phone, password: DEV_PASSWORD },
+  });
+  return {
+    phone,
+    response,
+    token: response.data?.token,
+    user: response.data?.user,
+  };
+}
+
+function gameMetadata({ title, coverAssetId }) {
+  return {
+    title,
+    summary: '收藏验收临时作品',
+    description: '',
+    category: '休闲',
+    tags: ['e2e'],
+    coverAssetId,
+    deviceSupport: { desktop: true, mobile: false, touch: false },
+    inputModes: ['keyboard', 'mouse'],
+    orientation: 'landscape',
+  };
+}
+
+async function uploadCover(token, id) {
+  const fileName = `collection-${id}.png`;
+  const ticket = await api('/api/assets/direct-upload-tickets', {
+    method: 'POST',
+    token,
+    body: {
+      legacyPrefix: 'generated-character-drafts',
+      pathSegments: ['game-distribution', 'collection', String(id)],
+      fileName,
+      contentType: 'image/png',
+      access: 'private',
+      maxSizeBytes: COVER_PNG.length,
+      metadata: { asset_kind: 'game_distribution_cover' },
+    },
+  });
+  if (ticket.status !== 200) {
+    throw new Error(
+      `创建直传凭证失败 ${ticket.status} ${ticket.text.slice(0, 300)}`,
+    );
+  }
+  const upload = ticket.data.upload;
+  const form = new FormData();
+  for (const [key, value] of Object.entries(upload.formFields ?? {})) {
+    if (value !== null && value !== undefined) form.append(key, String(value));
+  }
+  form.append('file', new Blob([COVER_PNG], { type: 'image/png' }), fileName);
+  const put = await fetch(upload.host, { method: 'POST', body: form });
+  if (!put.ok) {
+    throw new Error(`直传对象存储失败 ${put.status}`);
+  }
+  const confirm = await api('/api/assets/objects/confirm', {
+    method: 'POST',
+    token,
+    body: {
+      bucket: upload.bucket,
+      objectKey: upload.objectKey,
+      contentType: 'image/png',
+      contentLength: COVER_PNG.length,
+      assetKind: 'game_distribution_cover',
+      accessPolicy: 'private',
+      entityId: 'game-distribution-collection',
+    },
+  });
+  if (confirm.status !== 200) {
+    throw new Error(
+      `确认素材失败 ${confirm.status} ${confirm.text.slice(0, 300)}`,
+    );
+  }
+  return confirm.data.assetObject.assetObjectId;
+}
+
+async function createGame({ token, metadata, idemKey }) {
+  return api('/api/game-distribution/games', {
+    method: 'POST',
+    token,
+    headers: { 'Idempotency-Key': idemKey },
+    body: metadata,
+  });
+}
+
+async function ownerGame(token, gameId) {
+  const response = await api(`/api/game-distribution/my-games/${gameId}`, {
+    token,
+  });
+  return { response, game: response.data?.game ?? null };
+}
+
+async function buildReleaseZip(marker) {
+  const zip = new JSZip();
+  zip.file(
+    'index.html',
+    `<!doctype html><html><head><meta charset="utf-8"><title>${marker}</title></head><body><h1>${marker}</h1></body></html>`,
+  );
+  const bytes = Buffer.from(await zip.generateAsync({ type: 'uint8array' }));
+  return {
+    bytes,
+    fileCount: 1,
+    sha256: createHash('sha256').update(bytes).digest('hex'),
+  };
+}
+
+/// 完整发布链路（照抄 lineage 脚本 :320-407）：建版本 → 传发行包 → 送审 → 管理员通过。
+async function publishToPublic({
+  token,
+  admin,
+  gameId,
+  gameRevision,
+  metadata,
+  stamp,
+  tag,
+  label,
+}) {
+  const zip = await buildReleaseZip(`collection-${tag}-${stamp}`);
+  const created = await api(`/api/game-distribution/games/${gameId}/versions`, {
+    method: 'POST',
+    token,
+    headers: { 'Idempotency-Key': `col-version-${tag}-${stamp}` },
+    body: {
+      packageSha256: zip.sha256,
+      packageBytes: zip.bytes.length,
+      packageFileCount: zip.fileCount,
+      packageEntryPath: 'index.html',
+      gameMetadata: metadata,
+    },
+  });
+  const versionId = created.data?.versionId;
+  check(
+    `${label} 版本创建成功`,
+    created.status === 200 && Boolean(versionId),
+    `status=${created.status} ${created.text.slice(0, 140)}`,
+  );
+  if (!versionId) return { versionId: null };
+
+  const upload = await api(
+    `/api/game-distribution/versions/${versionId}/package`,
+    {
+      method: 'PUT',
+      token,
+      headers: {
+        'Idempotency-Key': `col-upload-${tag}-${stamp}`,
+        'Content-Type': 'application/zip',
+      },
+      binary: zip.bytes,
+    },
+  );
+  check(
+    `${label} 发行包上传成功`,
+    upload.status === 200,
+    `status=${upload.status}`,
+  );
+
+  const submitted = await api(
+    `/api/game-distribution/versions/${versionId}/submit`,
+    {
+      method: 'POST',
+      token,
+      headers: { 'Idempotency-Key': `col-submit-${tag}-${stamp}` },
+      body: { expectedPublicationRevision: gameRevision },
+    },
+  );
+  check(
+    `${label} 送审成功（202）`,
+    submitted.status === 202,
+    `status=${submitted.status} ${submitted.text.slice(0, 140)}`,
+  );
+
+  const readback = await api(`/api/game-distribution/versions/${versionId}`, {
+    token,
+  });
+  const approved = await api(
+    `/admin/api/game-distribution/versions/${versionId}/review`,
+    {
+      method: 'POST',
+      token: admin,
+      headers: { 'Idempotency-Key': `col-approve-${tag}-${stamp}` },
+      body: {
+        decision: 'approve',
+        expectedPublicationRevision:
+          readback.data?.version?.publicationRevision ?? gameRevision,
+      },
+    },
+  );
+  check(
+    `${label} 管理员审核通过并公开`,
+    approved.status === 200,
+    `status=${approved.status} ${approved.text.slice(0, 140)}`,
+  );
+  return { versionId };
+}
+
+// ---------- 收藏专用 helper ----------
+
+function collectGame({ token, gameId, key }) {
+  return api(`/api/game-distribution/games/${gameId}/collection`, {
+    method: 'PUT',
+    token,
+    ...(key === undefined ? {} : { headers: { 'Idempotency-Key': key } }),
+  });
+}
+
+function uncollectGame({ token, gameId }) {
+  return api(`/api/game-distribution/games/${gameId}/collection`, {
+    method: 'DELETE',
+    token,
+  });
+}
+
+function myCollections(token) {
+  return api('/api/game-distribution/my-collections', { token });
+}
+
+function publicDetail(gameId, token) {
+  return api(`/api/game-distribution/games/${gameId}`, { token });
+}
+
+function publicCatalog() {
+  return api('/api/game-distribution/games');
+}
+
+function occurrences(games, gameId) {
+  return (games ?? []).filter((game) => game.id === gameId).length;
+}
+
+// ---------- 主流程 ----------
+
+async function main() {
+  console.log(
+    `[collection-e2e] api-server=${API} database=${devStack.database}`,
+  );
+
+  const adminLogin = await api('/admin/api/login', {
+    method: 'POST',
+    body: { username: ADMIN_USER, password: ADMIN_PASSWORD },
+  });
+  const admin = adminLogin.data?.token ?? adminLogin.data?.accessToken;
+  check(
+    '管理员登录成功',
+    adminLogin.status === 200 && Boolean(admin),
+    `status=${adminLogin.status}`,
+  );
+  if (!admin) process.exit(1);
+
+  const gate = await api('/admin/api/feature-gates', {
+    method: 'PUT',
+    token: admin,
+    body: {
+      gateKey: GATE_KEY,
+      enabled: true,
+      rolloutPercent: 100,
+      allowUserIds: [],
+      allowUserTags: [],
+      denyUserIds: [],
+      description: 'E2E 收藏链路',
+    },
+  });
+  check('发布灰度已开启', gate.status === 200, `status=${gate.status}`);
+
+  const stamp = Date.now();
+  const suffix = String(stamp).slice(-6);
+  const author = await register('132');
+  const viewer = await register('133');
+  check(
+    '作者账号注册拿到 token',
+    author.response.status === 200 && Boolean(author.token),
+    `status=${author.response.status}`,
+  );
+  check(
+    '第二个账号（未收藏视图）注册拿到 token',
+    viewer.response.status === 200 && Boolean(viewer.token),
+    `status=${viewer.response.status}`,
+  );
+  if (!author.token || !viewer.token) process.exit(1);
+
+  // ---------- fixture：已公开作品 X + 草稿作品 D ----------
+  const metadata = gameMetadata({
+    title: `收藏作品 ${suffix}`,
+    coverAssetId: await uploadCover(author.token, stamp),
+  });
+  const created = await createGame({
+    token: author.token,
+    metadata,
+    idemKey: `col-game-${stamp}`,
+  });
+  const gameId = created.data?.id;
+  check(
+    '作品 X 创建成功',
+    created.status === 200 && Boolean(gameId),
+    `status=${created.status} id=${gameId ?? ''}`,
+  );
+  if (!gameId) process.exit(1);
+  await publishToPublic({
+    token: author.token,
+    admin,
+    gameId,
+    gameRevision: created.data?.publicationRevision ?? 0,
+    metadata,
+    stamp,
+    tag: 'x',
+    label: '作品 X',
+  });
+  const xPublic = await publicDetail(gameId);
+  check(
+    '作品 X 已公开可读',
+    xPublic.status === 200 && xPublic.data?.status === 'published',
+    brief(xPublic),
+  );
+
+  const draftMetadata = gameMetadata({
+    title: `收藏草稿 ${suffix}`,
+    coverAssetId: await uploadCover(author.token, `${stamp}-draft`),
+  });
+  const draftCreated = await createGame({
+    token: author.token,
+    metadata: draftMetadata,
+    idemKey: `col-draft-${stamp}`,
+  });
+  const draftId = draftCreated.data?.id;
+  check(
+    '草稿作品 D 创建成功（用于 409 用例）',
+    draftCreated.status === 200 && Boolean(draftId),
+    `status=${draftCreated.status} id=${draftId ?? ''}`,
+  );
+  if (!draftId) process.exit(1);
+
+  // ---------- 1/2：两次不同幂等键 + 同键重放，且始终只有一行 ----------
+  const listBefore = await myCollections(author.token);
+  check(
+    '收藏前我的收藏列表为空',
+    listBefore.status === 200 &&
+      Array.isArray(listBefore.data?.games) &&
+      listBefore.data.games.length === 0,
+    `status=${listBefore.status} size=${listBefore.data?.games?.length ?? 'n/a'}`,
+  );
+
+  const keyA = `col-key-a-${stamp}`;
+  const keyB = `col-key-b-${stamp}`;
+  const firstCollect = await collectGame({
+    token: author.token,
+    gameId,
+    key: keyA,
+  });
+  check(
+    '1) 首次收藏成功且 replayed=false',
+    firstCollect.status === 200 &&
+      firstCollect.data?.collected === true &&
+      firstCollect.data?.replayed === false,
+    brief(firstCollect),
+  );
+  const secondCollect = await collectGame({
+    token: author.token,
+    gameId,
+    key: keyB,
+  });
+  check(
+    '1) 换幂等键再次收藏仍成功且 replayed=false',
+    secondCollect.status === 200 &&
+      secondCollect.data?.collected === true &&
+      secondCollect.data?.replayed === false,
+    brief(secondCollect),
+  );
+  const listAfterTwoKeys = await myCollections(author.token);
+  check(
+    '1) 两次不同键后该作品在列表中只出现一次（长度=1）',
+    listAfterTwoKeys.data?.games?.length === 1 &&
+      occurrences(listAfterTwoKeys.data?.games, gameId) === 1,
+    `size=${listAfterTwoKeys.data?.games?.length} occurrences=${occurrences(listAfterTwoKeys.data?.games, gameId)}`,
+  );
+
+  const replay = await collectGame({ token: author.token, gameId, key: keyB });
+  check(
+    '2) 同键重放 replayed=true 且仍只一行',
+    replay.status === 200 &&
+      replay.data?.collected === true &&
+      replay.data?.replayed === true &&
+      occurrences((await myCollections(author.token)).data?.games, gameId) ===
+        1,
+    brief(replay),
+  );
+
+  // ---------- 3：同键不同请求 ----------
+  const sameKeyOtherGame = await collectGame({
+    token: author.token,
+    gameId: draftId,
+    key: keyA,
+  });
+  check(
+    '3) 同键换作品 → 409（幂等摘要不一致）',
+    sameKeyOtherGame.status === 409 &&
+      String(
+        sameKeyOtherGame.error?.details?.message ??
+          sameKeyOtherGame.error?.message ??
+          '',
+      ).includes('幂等'),
+    brief(sameKeyOtherGame),
+  );
+  note(
+    '3) 同键换**用户**不会命中别人的收据：收据键是 (user_id, action, idempotency_key)，' +
+      '不同用户共用同一个 Idempotency-Key 是各自独立的新收藏（见下面的跨用户探针），' +
+      '与 api-server handler 注释里「换用户也是 409」不一致，但与该提交里 spacetime-module 的注释一致。',
+  );
+
+  // ---------- 4：DELETE 幂等 ----------
+  const deleted = await uncollectGame({ token: author.token, gameId });
+  check(
+    '4) 已收藏时 DELETE → 200 {collected:false} 且不发 replayed',
+    deleted.status === 200 &&
+      deleted.data?.collected === false &&
+      deleted.data?.replayed === undefined,
+    brief(deleted),
+  );
+  const deletedAgain = await uncollectGame({ token: author.token, gameId });
+  check(
+    '4) 未收藏时再 DELETE 仍 200 {collected:false}',
+    deletedAgain.status === 200 && deletedAgain.data?.collected === false,
+    brief(deletedAgain),
+  );
+  const deletedNever = await uncollectGame({
+    token: author.token,
+    gameId: draftId,
+  });
+  check(
+    '4) 从未收藏过的作品 DELETE 也 200（不要求作品公开）',
+    deletedNever.status === 200 && deletedNever.data?.collected === false,
+    brief(deletedNever),
+  );
+
+  // ---------- 5：未登录 401 + no-store ----------
+  for (const [label, call] of [
+    ['PUT', () => collectGame({ gameId, key: `col-anon-${stamp}` })],
+    ['DELETE', () => uncollectGame({ gameId })],
+    ['GET', () => myCollections('')],
+  ]) {
+    const response = await call();
+    check(`5) 未登录 ${label} → 401`, response.status === 401, brief(response));
+    check(
+      `5) 未登录 ${label} 响应带 Cache-Control: no-store（证明挂载而非 404/405）`,
+      response.cacheControl.includes('no-store'),
+      `cache-control=${response.cacheControl || '∅'}`,
+    );
+  }
+  const noKey = await collectGame({ token: author.token, gameId });
+  check(
+    '5) 已登录但缺 Idempotency-Key 的 PUT → 400',
+    noKey.status === 400,
+    brief(noKey),
+  );
+
+  // ---------- 6：未公开 / 不存在 ----------
+  const draftCollect = await collectGame({
+    token: author.token,
+    gameId: draftId,
+    key: `col-draft-key-${stamp}`,
+  });
+  const draftMessage = String(
+    draftCollect.error?.details?.message ?? draftCollect.error?.message ?? '',
+  );
+  check(
+    '6) 未公开作品 PUT → 409（状态冲突）',
+    draftCollect.status === 409,
+    brief(draftCollect),
+  );
+  check(
+    '6) 409 文案含「状态」且不含「不存在」（不泄露未公开作品的存在性）',
+    draftMessage.includes('状态') && !draftMessage.includes('不存在'),
+    `message=${draftMessage || '∅'}`,
+  );
+  const missingCollect = await collectGame({
+    token: author.token,
+    gameId: `game_${'0'.repeat(32)}`,
+    key: `col-missing-key-${stamp}`,
+  });
+  check(
+    '6) 不存在的 gameId PUT → 404',
+    missingCollect.status === 404,
+    brief(missingCollect),
+  );
+
+  // ---------- 9：跨用户隔离（在跨用户探针之前做，避免被后面的收藏干扰） ----------
+  await collectGame({ token: author.token, gameId, key: `col-iso-${stamp}` });
+  const viewerList = await myCollections(viewer.token);
+  check(
+    '9) 用户 A 收藏后，用户 B 的 my-collections 不含该作品',
+    viewerList.status === 200 &&
+      occurrences(viewerList.data?.games, gameId) === 0,
+    `viewer size=${viewerList.data?.games?.length ?? 'n/a'}`,
+  );
+  const viewerDetail = await publicDetail(gameId, viewer.token);
+  check(
+    '9) 用户 B 的公开详情里 collected=false（未收藏但已认证）',
+    viewerDetail.status === 200 && viewerDetail.data?.collected === false,
+    `collected=${JSON.stringify(viewerDetail.data?.collected ?? null)}`,
+  );
+
+  // 跨用户同键探针（工单预期 409，实现按用户隔离收据 → 期望 200 新收藏）
+  const crossUser = await collectGame({
+    token: viewer.token,
+    gameId,
+    key: keyA,
+  });
+  check(
+    '9+) 另一用户复用 A 用过的同一 Idempotency-Key → 200（收据按用户隔离，非 409）',
+    crossUser.status === 200 &&
+      crossUser.data?.collected === true &&
+      crossUser.data?.replayed === false,
+    brief(crossUser),
+  );
+  check(
+    '9+) 跨用户收藏后 B 的列表含该作品，且 A 的列表不受影响',
+    occurrences((await myCollections(viewer.token)).data?.games, gameId) ===
+      1 &&
+      occurrences((await myCollections(author.token)).data?.games, gameId) ===
+        1,
+    `viewer=${occurrences((await myCollections(viewer.token)).data?.games, gameId)} author=${occurrences((await myCollections(author.token)).data?.games, gameId)}`,
+  );
+  await uncollectGame({ token: viewer.token, gameId });
+
+  // ---------- 7：下架 → 重新公开 ----------
+  const beforeUnpublish = await ownerGame(author.token, gameId);
+  const unpublishRevision = beforeUnpublish.game?.publicationRevision ?? 0;
+  const unpublished = await api(
+    `/api/game-distribution/games/${gameId}/unpublish`,
+    {
+      method: 'POST',
+      token: author.token,
+      headers: { 'Idempotency-Key': `col-unpublish-${stamp}` },
+      body: { expectedPublicationRevision: unpublishRevision },
+    },
+  );
+  check('7) 作者下架成功', unpublished.status === 200, brief(unpublished));
+  const hiddenList = await myCollections(author.token);
+  check(
+    '7) 下架后 my-collections 不含该作品（读侧过滤）',
+    hiddenList.status === 200 &&
+      occurrences(hiddenList.data?.games, gameId) === 0,
+    `size=${hiddenList.data?.games?.length} occurrences=${occurrences(hiddenList.data?.games, gameId)}`,
+  );
+  const republish = await publishToPublic({
+    token: author.token,
+    admin,
+    gameId,
+    gameRevision:
+      (await ownerGame(author.token, gameId)).game?.publicationRevision ?? 0,
+    metadata,
+    stamp,
+    tag: 'x-v2',
+    label: '作品 X 重新公开',
+  });
+  check(
+    '7) 重新公开（新版本审核通过）后 my-collections 又含该作品且只一行',
+    republish.versionId !== null &&
+      occurrences((await myCollections(author.token)).data?.games, gameId) ===
+        1,
+    `occurrences=${occurrences((await myCollections(author.token)).data?.games, gameId)}`,
+  );
+
+  // ---------- 8：公开详情 collected 的匿名 vs 已认证 ----------
+  const anonymousDetail = await publicDetail(gameId);
+  const authorDetail = await publicDetail(gameId, author.token);
+  const anonymousHasKey = Object.hasOwn(
+    anonymousDetail.data ?? {},
+    'collected',
+  );
+  const authorKeys = Object.keys(authorDetail.data ?? {});
+  const anonymousKeys = Object.keys(anonymousDetail.data ?? {});
+  check(
+    '8) 匿名公开详情没有 collected 键',
+    anonymousDetail.status === 200 && !anonymousHasKey,
+    `keys=${anonymousKeys.join(',')}`,
+  );
+  check(
+    '8) 已登录公开详情恰好多 collected 这一个键且值为 true',
+    authorDetail.status === 200 &&
+      authorDetail.data?.collected === true &&
+      authorKeys.length === anonymousKeys.length + 1 &&
+      authorKeys.every(
+        (key) => key === 'collected' || anonymousKeys.includes(key),
+      ),
+    `authorKeys=${authorKeys.length} anonymousKeys=${anonymousKeys.length} collected=${JSON.stringify(authorDetail.data?.collected ?? null)}`,
+  );
+  const authorWithoutCollected = { ...(authorDetail.data ?? {}) };
+  delete authorWithoutCollected.collected;
+  check(
+    '8) 去掉 collected 后，已登录详情与匿名详情逐字段一致',
+    JSON.stringify(authorWithoutCollected) ===
+      JSON.stringify(anonymousDetail.data ?? {}),
+    `diffKeys=${anonymousKeys.filter((key) => JSON.stringify(authorDetail.data?.[key]) !== JSON.stringify(anonymousDetail.data?.[key])).join(',') || '无'}`,
+  );
+  const catalog = await publicCatalog();
+  const catalogEntry = (catalog.data?.games ?? []).find(
+    (game) => game.id === gameId,
+  );
+  const catalogKeys = Object.keys(catalogEntry ?? {});
+  const mismatchedCatalogKeys = catalogKeys.filter(
+    (key) =>
+      JSON.stringify(catalogEntry?.[key]) !==
+      JSON.stringify(anonymousDetail.data?.[key]),
+  );
+  check(
+    '8) 公开目录里的同作品条目与匿名详情键集合与取值都一致',
+    Boolean(catalogEntry) &&
+      catalogKeys.length === anonymousKeys.length &&
+      mismatchedCatalogKeys.length === 0,
+    `catalogKeys=${catalogKeys.length} detailKeys=${anonymousKeys.length} 不一致=${mismatchedCatalogKeys.join(',') || '无'}`,
+  );
+  check(
+    '8) 我的收藏列表条数与「已收藏」状态一致（nextCursor=null）',
+    (await myCollections(author.token)).data?.nextCursor === null &&
+      occurrences((await myCollections(author.token)).data?.games, gameId) ===
+        1,
+    `nextCursor=${JSON.stringify((await myCollections(author.token)).data?.nextCursor ?? null)}`,
+  );
+  note(
+    `未覆盖：没有收藏计数类接口可读，因此「只一行」用 my-collections 的长度与出现次数证明（工单允许的方式）；` +
+      `当前库内该用户收藏条数=${(await myCollections(author.token)).data?.games?.length ?? 'n/a'}。`,
+  );
+
+  console.log(
+    `[collection-e2e] 共 ${checks} 项：PASS ${checks - failures}，FAIL ${failures}，SKIP ${skipped}`,
+  );
+  if (failures > 0) {
+    process.exitCode = 1;
+  }
+}
+
+main().catch((error) => {
+  console.error(`[collection-e2e] 未捕获异常：${error?.stack ?? error}`);
+  process.exitCode = 1;
+});