diff --git a/docs/openapi/genarrative-external-v1.openapi.json b/docs/openapi/genarrative-external-v1.openapi.json
index a88961e71..0326fca0d 100644
--- a/docs/openapi/genarrative-external-v1.openapi.json
+++ b/docs/openapi/genarrative-external-v1.openapi.json
@@ -1810,6 +1810,12 @@
           "imageSrc": {
             "type": "string"
           },
+          "thumbnailSrc": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
           "objectKey": {
             "type": [
               "string",
diff --git a/docs/project-memory/shared-memory/decision-log.md b/docs/project-memory/shared-memory/decision-log.md
index 5fe718b42..4ece5d8c3 100644
--- a/docs/project-memory/shared-memory/decision-log.md
+++ b/docs/project-memory/shared-memory/decision-log.md
@@ -124,7 +124,7 @@
 ## 2026-06-19 图片画布素材生成元数据上移到资源和素材
 
 - 背景：角色、图标、UI 设计图、视频和音频等生成结果会在图片信息页展示用户可见输入快照；此前这些 `assetKind/generationInputs` 主要保存在画布 layer JSON 中，素材进入账号级素材库后跨项目复用和刷新恢复都依赖画布布局，不符合素材库作为账号级事实源的边界。
-- 决策：普通图层的新保存不再把 `assetKind/generationInputs` 写入 `editor_canvas.layers_json`。`editor_project_resource` 保存项目画布资源快照的 `asset_kind/generation_inputs_json`，`editor_asset` 保存账号级素材的同名元数据；图片 / 图标 / UI 提取等生成 BFF 在请求携带 `projectId` / `assetFolderId` 时由后端创建新 resource / asset 并把快照回传前端，前端只用回包更新画布图层和素材栏，不再把同一生成结果二次调用保存接口。前端加载时优先从 resource / asset 恢复素材类别和生成输入快照，旧 layout 中的同名字段只作为历史兼容兜底。生成器对象本身仍作为 `itemType="generation-dialog"` 保存在画布布局中。
+- 决策：普通图层的新保存不再把 `assetKind/generationInputs` 写入 `editor_canvas.layers_json`。`editor_project_resource` 保存项目画布资源快照的 `asset_kind/generation_inputs_json`，`editor_asset` 保存账号级素材的同名元数据和可选封面 `thumbnail_src`；图片 / 图标 / UI 提取等生成 BFF 在请求携带 `projectId` / `assetFolderId` 时由后端创建新 resource / asset 并把快照回传前端，前端只用回包更新画布图层和素材栏，不再把同一生成结果二次调用保存接口。生成视频由后端单独抽取首帧封面写入 `editor_asset.thumbnail_src` 和画布图层 `thumbnailSrc`，刷新素材库或从素材库拖回画布时继续作为视频 poster 使用。前端加载时优先从 resource / asset 恢复素材类别和生成输入快照，旧 layout 中的同名字段只作为历史兼容兜底。生成器对象本身仍作为 `itemType="generation-dialog"` 保存在画布布局中。
 - 影响范围：`server-rs/crates/spacetime-module/src/editor_project_storage.rs`、`server-rs/crates/spacetime-client/src/mapper/editor_project.rs`、`server-rs/crates/api-server/src/editor_project.rs`、`src/services/image-editor/editorProjectClient.ts`、图片画布 hydrate / serialize / project persistence / asset library 代码和后端数据契约文档。
 - 验证方式：运行 `npm run spacetime:generate`、`npm run check:spacetime-schema`、`npm run test -- src/components/image-editor/ImageCanvasEditorModel.test.ts src/components/image-editor/useImageCanvasProjectPersistence.test.tsx src/services/image-editor/editorProjectClient.test.ts`、`npm run typecheck`、`npm run check:encoding`、`git diff --check`，并按需补充 `cargo check -p spacetime-client -p api-server --manifest-path server-rs/Cargo.toml`。
 - 关联文档：`docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md`、`docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md`。
@@ -2867,7 +2867,7 @@
 ## 2026-06-17 图片画布生成器快照纳入画布布局
 
 - 背景：生成占位图和生成器对话框里包含用户输入、参数、参考图、占位框位置和生成结果绑定，刷新后丢失会让已生成图片无法回到 Lovart 式跟随编辑状态。
-- 决策：生成器对象统一作为 `editor_canvas` 布局 JSON 的 `itemType: "generation-dialog"` 项保存，不新增表；成功生成后仍保留生成器快照和最后占位框位置，并通过 `generatedLayerId` 锚定到成品图层，渲染时不重复显示灰色占位框。图片类生成结果同步写入账号级素材库；视频结果当前只作为画布视频资源保存。
+- 决策：生成器对象统一作为 `editor_canvas` 布局 JSON 的 `itemType: "generation-dialog"` 项保存，不新增表；成功生成后仍保留生成器快照和最后占位框位置，并通过 `generatedLayerId` 锚定到成品图层，渲染时不重复显示灰色占位框。图片类和生成视频结果同步写入账号级素材库；生成视频素材当前没有独立 poster 字段，素材栏以视频图标叠层展示。
 - 影响范围：图片画布 layout 序列化 / hydrate、生成工作流、生成器渲染、项目自动保存、素材库回填和编辑器技术方案。
 - 验证方式：`npm run test -- src/components/image-editor/ImageCanvasEditorModel.test.ts src/components/image-editor/useCanvasGenerationDialogs.test.tsx src/components/image-editor/useImageCanvasProjectPersistence.test.tsx src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.test.tsx src/components/image-editor/ImageCanvasWorldView.test.tsx src/components/image-editor/ImageCanvasEditorGenerationIntegration.test.tsx`、`npm run typecheck`、`npm run check:encoding`、`git diff --check`、浏览器刷新 smoke。
 - 关联文档：`docs/【编辑器】生成类面板Lovart统一改造方案-2026-06-17.md`、`docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md`。
diff --git a/docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md b/docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md
index 97af23d9b..b66cb75aa 100644
--- a/docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md
+++ b/docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md
@@ -44,13 +44,13 @@
 - 新增 `editor_project` 表保存图片画布工程：`projectId`、`ownerUserId`、标题、创建时间和更新时间；历史 layout 字段暂保留为兼容列，不再作为权威画布数据。
 - 新增 `editor_canvas` 表保存工程下的画布：`canvasId`、`projectId`、`ownerUserId`、标题、viewport、图层布局 JSON、创建时间和更新时间。当前编辑器使用项目默认画布，后续可扩展为一个 project 下多个 canvas。
 - 新增 `editor_asset_folder` 表保存账号级素材文件夹：`folderId`、`ownerUserId`、名称、排序、折叠状态、系统默认标记、创建时间和更新时间。素材文件夹不归属于 project，同一个账号进入任一项目都能看到。
-- 新增 `editor_asset` 表保存账号级素材：`assetId`、`ownerUserId`、`folderId`、名称、图片读取地址、OSS / asset object 引用、图片尺寸、来源类型、prompt、actualPrompt、model、provider、taskId、`assetKind`、`generationInputs`、创建时间和更新时间。素材只跟账号走，不跟 project 走；角色、图标、UI 设计图、视频和音频等生成结果的用户可见输入快照随素材保存。
+- 新增 `editor_asset` 表保存账号级素材：`assetId`、`ownerUserId`、`folderId`、名称、图片读取地址、可选封面 `thumbnailSrc`、OSS / asset object 引用、图片尺寸、来源类型、prompt、actualPrompt、model、provider、taskId、`assetKind`、`generationInputs`、创建时间和更新时间。素材只跟账号走，不跟 project 走；角色、图标、UI 设计图、视频和音频等生成结果的用户可见输入快照随素材保存。
 - `editor_project_resource` 表保存工程画布引用过的资源快照：`resourceId`、`projectId`、`ownerUserId`、OSS / asset object 引用、图片尺寸、来源类型、prompt、actualPrompt、model、provider、taskId、sourceResourceId、`assetKind`、`generationInputs`、创建时间和更新时间。上传素材被拖入画布时会复制为 project resource，图层只引用 resourceId；图片、图标和 UI 素材生成 BFF 在请求携带 `projectId` 时由后端直接创建新 resource，并把 `resourceId` 随生成响应返回给前端。图片生成请求如果同时携带 `canvasCompletion`（生成器 `dialogId`、标题和占位框，或无 dialog 的右侧完成占位），BFF / worker 在生成成功后必须直接读取当前项目布局，优先使用最新 `generation-dialog` 占位框位置；只有当前布局仍存在对应 `generation-dialog` 时才插入轻量结果图层、把生成器标记为 `idle` 并写入 `generatedLayerId`，沿用后端当前 viewport 保存布局，再返回或刷新最新项目快照；前端只应用该快照刷新显示，不把生成完成态作为本地业务真相，也不在项目加载时根据资源行推断完成态。有项目上下文但后端没有返回项目快照时，前端不得本地补结果图层，只保留当前生成器交互状态等待下一次项目刷新。
 - 项目封面图是画布当前视口栅格化后的静态快照资源，不在项目列表页临时重放 `layers + viewport`。前端在项目加载后和防抖保存 layout 时生成 320x240 PNG，走私有 OSS / asset object 上传，再创建 `editor_project_resource`，其中 `assetKind="project-cover-snapshot"`、`sourceType="uploaded"`。`/project` 与 `/creation` 最近项目卡只读取最新封面快照资源渲染；没有封面快照时显示普通项目占位，不回退为实时画布组合。
 - 图片、音频、视频和角色动画帧文件本体继续走 OSS / asset object；浏览器读取私有 generated 对象统一经 `/api/assets/read-url` 换签，签名 URL 可在 session 内复用，但不得作为持久化真相。`/api/assets/read-url` 属于页面展示层高频后台请求，前端统一在 `assetReadUrlService` 内做同 key pending 去重、session 缓存和跨组件节流；UI 设计切片、角色动画帧或大量素材恢复时不得绕过该服务并发换签，否则单页可在同一秒内打满发布入口 `genarrative_api_rps` burst。
 - 登录态上传和生成结果必须先落 OSS / asset object，再向 `editor_project_resource` / `editor_asset` 写入轻量 `imageSrc: "/<objectKey>"`、`objectKey` 和 `assetObjectId`；未登录演示态可以在内存里使用 Data URL 预览，但项目、素材库、项目资源和 `editor_canvas.layers_json` 不得写入 `data:image/*`、`data:video/*`、`data:audio/*` 或 `blob:`。旧数据读取时如果已有 `objectKey`，`imageSrc` 归一成 `/<objectKey>`；没有 `objectKey` 的旧 Data URL 需要走修复上传并回写轻量引用。上传到生成面板参考图槽位的图片必须先创建 `editor_project_resource` 行；没有当前工程 ID 时才创建账号级 `editor_asset` 行，随后把对应 `resourceId` 或 `assetId` 写入参考图临时状态，生成请求仍使用临时状态中的图片源或 `objectKey`。
 - 资源表保存资源和素材级元数据；图层位置、层级、分组选中所需 ID 和 groupId 保存在 `editor_canvas` 的布局 JSON。布局 JSON 是混合数组：普通图层按 `layerId/resourceId` 保存，生成器占位和生成器对话框按 `itemType: "generation-dialog"` 保存，不新增单独表。普通图层的新保存不再把 `assetKind/generationInputs` 写入布局 JSON；刷新时优先从 `editor_project_resource` 恢复，旧布局中的同名字段只作为兼容兜底。生成器快照必须包含生成器 ID、模式、提示词、参数、参考图、状态、占位框位置和可选 `generatedLayerId`；宣发素材生成器还必须保存并恢复 `publicationWorkflowId`、`publicationGameInfo` 和 `publicationReferences`，避免刷新后生成卡片字段或参考图丢失。生成器快照中的参考图同样只保存 `resourceId/sourceAssetId` 行引用和展示所需 label，不保存图片 Data URL、signed URL 或 `objectKey`；刷新时用 `editor_project_resource` / `editor_asset` 行恢复临时生成请求所需图片源。生成成功后仍保存该快照，只是渲染时由 `generatedLayerId` 锚定到成品图层而不重复显示灰色占位框。`generationInputs.references` 是用户可见输入快照中的行级索引，只允许保存 `{ title, label, refType, refId }`；生成接口所需的图片 Data URL、signed URL 或 `objectKey` 只存在于提交前的临时参考图状态和请求体字段，不进入资源 / 素材元数据。图层展示尺寸不再作为独立 `Size` 真相保存，刷新与新建图层均按 `Resolution`（`originalWidth/originalHeight`）原分辨率显示。图层组第一版是画布内布局语义，不单独建表。
-- 图片类生成结果除作为 `editor_project_resource` 和画布图层保存外，还要写入账号级 `editor_asset` 素材库；该写入由生成 BFF 在请求携带 `assetFolderId` 时完成。`GENARRATIVE_EXTERNAL_GENERATION_MODE=queue` 下，画布图片、改图、图标素材、UI 素材提取、角色动作、视频、音效和背景音乐生成都先返回 `queueState`，前端轮询 `/api/runtime/external-generation/jobs/{jobId}` 到完成后重新读取项目快照；`inline` 或无项目上下文时才使用响应中的 resource / asset 快照做本地落画布兜底，不再把同一生成结果二次调用素材创建接口。生成请求失败、inline 完成或 queue 任务终态完成 / 失败后，右上角泥点 chip 必须通过 `/profile/dashboard` 回读余额，不做本地乐观扣减。视频结果当前只保存为画布视频资源，不进入图片素材库。
+- 图片类和生成视频结果除作为 `editor_project_resource` 和画布图层保存外，还要写入账号级 `editor_asset` 素材库；该写入由生成 BFF 在请求携带 `assetFolderId` 时完成。`GENARRATIVE_EXTERNAL_GENERATION_MODE=queue` 下，画布图片、改图、图标素材、UI 素材提取、角色动作、视频、音效和背景音乐生成都先返回 `queueState`，前端轮询 `/api/runtime/external-generation/jobs/{jobId}` 到完成后重新读取项目快照；`inline` 或无项目上下文时才使用响应中的 resource / asset 快照做本地落画布兜底，不再把同一生成结果二次调用素材创建接口。生成请求失败、inline 完成或 queue 任务终态完成 / 失败后，右上角泥点 chip 必须通过 `/profile/dashboard` 回读余额，不做本地乐观扣减。生成视频会单独抽取首帧封面并写入 `thumbnailSrc`，素材栏和拖回画布时沿用该封面作为 poster。
 - 前端不直接订阅 SpacetimeDB，统一通过 api-server 的 `/api/editor/projects*` BFF 读写。
 - 工程刷新恢复可先应用 session 级轻量项目快照缓存，让画布和素材 chrome 尽快显示；缓存快照必须排除 `data:*` / `blob:` 内联媒体，且在后端项目快照返回前不得触发自动保存。后端快照回来后覆盖本地缓存显示并恢复正常保存队列。
 - 未登录用户可以使用本地演示态，但不触发工程自动保存；真实图片生成 / 修改需要登录。编辑器 API 请求允许使用 refresh cookie 静默补 access token，但 401 / 403 只在编辑器局部提示登录，不清空整站登录态，也不把后端 requestId 直接作为生图弹窗主文案。
@@ -76,7 +76,7 @@
 - `POST /api/editor/icon-spritesheets/generations`：按图标规范图和素材描述数组生成 spritesheet，再由后端切分为独立透明图标。请求支持 `model`、`aspectRatio`、`imageSize`、`priceMudPoints`、`projectId`、`assetFolderId` 和 `generationInputs`；`priceMudPoints` 必须来自编辑器生成计费配置中对应生图模型的尺寸档位（如 `nanobanana2` 的 `0.5K / 1K / 2K` 或 `gpt-image-2` 的 `1K / 2K`），后端用 `editor_generation_config` 校验后才调用上游；`nanobanana2` 走原生 `generateContent` 并写入 `generationConfig.imageConfig.aspectRatio/imageSize`，`0.5K` 传 `"512"`；`gpt-image-2` 走 `/v1/images/edits`。后端把 spritesheet 和拆分后的 icon 都保存为 project resource / 账号素材，并随响应返回对应快照。
 - `POST /api/editor/ui-designs/assets/extractions`：以前端已绘入红色框选轮廓的 UI 设计图 Data URL 作为参考图，固定 `gpt-image-2` 和提示词 `仅提取被红色框框选的素材并整理成spritesheet，图集背景必须使用单一纯绿色 #00FF00 / RGB(0,255,0) 绿幕，方便后续扣除背景；素材自身不要出现绿色描边、绿色底板或绿色阴影。` 生成素材 spritesheet，再按连通域自动拆分为 `素材 1..N`，返回结构复用图标 spritesheet 响应。请求必须携带 `aspectRatio: "1:1"`、`imageSize: "1K" | "2K"` 和 `priceMudPoints`；框选数量不超过 6 个时前端按 `1:1·1K` 与 gpt-image-2 1K 价格提交，超过 6 个时按 `1:1·2K` 与 2K 价格提交。后端必须在调用上游前校验比例、尺寸和泥点价格，只允许 `1:1 / 1K / 2K`。请求可携带 `projectId`、`assetFolderId`、`generationInputs` 和 `spritesheetLabel`，后端保存 spritesheet / 拆分素材并返回对应 resource / asset 快照；前端必须把 spritesheet 原图与拆分素材都加入画布。
 - `POST /api/editor/images/edits`：按提示词和当前图片 Data URL 调用 VectorEngine edits，返回新的生成图片元数据；请求携带 project / asset 上下文时由后端创建新 resource / asset，前端只消费响应快照。
-- `POST /api/editor/videos/generations`：按视频描述、模型、比例、时长、分辨率、模式、声音、默认联网搜索标记和泥点价格生成视频。前端可选模型为 `seedance2.0-fast`、`seedance2.0`、`kling3.0`、`kling3.0-omni`，默认 `seedance2.0-fast`；后端必须将 `seedance2.0-fast` 映射到 `doubao-seedance-2-0-fast-260128`，将 `seedance2.0` 映射到 `doubao-seedance-2-0-260128`，两者不得混用。后端允许 6 类比例、4 到 15 秒整数、`480p / 720p / 1080p`，并拒绝 `seedance2.0-fast + 1080p`；`sound=on/off` 映射 Ark `generate_audio=true/false`。后端复用 Ark / VectorEngine content generation task 轮询链路，下载最终视频并持久化到 OSS，返回 `videoSrc`、尺寸、prompt、model、provider、taskId、durationSeconds、resolution 和 `priceMudPoints`。
+- `POST /api/editor/videos/generations`：按视频描述、模型、比例、时长、分辨率、模式、声音、默认联网搜索标记和泥点价格生成视频。前端可选模型为 `seedance2.0-fast`、`seedance2.0`、`kling3.0`、`kling3.0-omni`，默认 `seedance2.0-fast`；后端必须将 `seedance2.0-fast` 映射到 `doubao-seedance-2-0-fast-260128`，将 `seedance2.0` 映射到 `doubao-seedance-2-0-260128`，两者不得混用。后端允许 6 类比例、4 到 15 秒整数、`480p / 720p / 1080p`，并拒绝 `seedance2.0-fast + 1080p`；`sound=on/off` 映射 Ark `generate_audio=true/false`。后端复用 Ark / VectorEngine content generation task 轮询链路，下载最终视频并持久化到 OSS；请求携带 `projectId` / `assetFolderId` 时同步创建 project resource / 账号素材并返回 `project` / `asset` 快照，基础响应返回 `videoSrc`、尺寸、prompt、model、provider、taskId、durationSeconds、resolution 和 `priceMudPoints`。
 
 所有写接口都必须校验 Bearer 登录态和 owner；接口只返回当前用户有权读取的工程与资源。
 
diff --git a/docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md b/docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md
index 1153d4391..f9dc1e16a 100644
--- a/docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md
+++ b/docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md
@@ -482,7 +482,7 @@ npm run check:server-rs-ddd
 
 - Rust 结构体：`EditorAsset`
 - 源码：`server-rs/crates/spacetime-module/src/editor_project_storage.rs`
-- 说明：图片画布账号级素材表，保存用户上传 / 生成素材的名称、文件夹、图片读取地址、OSS 引用、尺寸、来源类型、prompt、provider、task、`asset_kind`、`generation_inputs_json` 和可选 `source_resource_id`。素材在同一账号的所有项目中可见；图片 / 图标 / UI 提取等生成 BFF 在请求携带 `asset_folder_id` 时负责创建账号级生成素材并返回 asset 快照，若同次生成也创建了 `editor_project_resource`，则把该 `resource_id` 写入 `source_resource_id`。素材库快照通过 `source_resource_id` 回查对应 project resource 的 `public_showcase_enabled`，供左侧素材菜单展示和切换公开状态；公开开关本身仍只落在 `editor_project_resource`，不在账号素材表复制真相。素材放入画布时复制为 `editor_project_resource` 并由图层引用 resourceId，画布从 resource / asset 级元数据恢复素材类别和用户可见生成输入快照。
+- 说明：图片画布账号级素材表，保存用户上传 / 生成素材的名称、文件夹、图片读取地址、可选封面 `thumbnail_src`、OSS 引用、尺寸、来源类型、prompt、provider、task、`asset_kind`、`generation_inputs_json` 和可选 `source_resource_id`。素材在同一账号的所有项目中可见；图片 / 图标 / UI 提取等生成 BFF 在请求携带 `asset_folder_id` 时负责创建账号级生成素材并返回 asset 快照，若同次生成也创建了 `editor_project_resource`，则把该 `resource_id` 写入 `source_resource_id`。生成视频会抽取首帧封面写入 `thumbnail_src`，素材库和再次放入画布时用它作为 video poster。素材库快照通过 `source_resource_id` 回查对应 project resource 的 `public_showcase_enabled`，供左侧素材菜单展示和切换公开状态；公开开关本身仍只落在 `editor_project_resource`，不在账号素材表复制真相。素材放入画布时复制为 `editor_project_resource` 并由图层引用 resourceId，画布从 resource / asset 级元数据恢复素材类别和用户可见生成输入快照。
 - 索引：`by_editor_asset_owner_user_id`、`by_editor_asset_folder_id`。
 
 ### `inventory_slot`
diff --git a/server-rs/crates/api-server/src/character_animation_assets.rs b/server-rs/crates/api-server/src/character_animation_assets.rs
index 996a5a507..b3e565222 100644
--- a/server-rs/crates/api-server/src/character_animation_assets.rs
+++ b/server-rs/crates/api-server/src/character_animation_assets.rs
@@ -61,8 +61,9 @@ use crate::{
         editor_generation_source_entity_id, enqueue_editor_generation_job,
     },
     editor_project::{
-        EditorCanvasGeneratedLayerInput, build_editor_canvas_generated_layer_item,
-        complete_editor_canvas_generation_with_items,
+        EditorCanvasGeneratedLayerInput, PersistEditorGeneratedAssetInput,
+        build_editor_canvas_generated_layer_item, complete_editor_canvas_generation_with_items,
+        persist_editor_generated_asset,
     },
     http_error::AppError,
     platform_errors::map_oss_error,
@@ -104,6 +105,7 @@ const EDITOR_CHARACTER_ANIMATION_PROMPT_PREFIX: &str = "生成游戏角色动画
 const EDITOR_VIDEO_ASSET_KIND: &str = "editor_video";
 const EDITOR_VIDEO_ENTITY_KIND: &str = "editor_canvas";
 const EDITOR_VIDEO_SLOT: &str = "video_preview";
+const EDITOR_VIDEO_COVER_SLOT: &str = "video_cover";
 const EDITOR_VIDEO_MODEL_SEEDANCE_2: &str = "seedance2.0";
 const EDITOR_VIDEO_MODEL_SEEDANCE_2_FAST: &str = "seedance2.0-fast";
 const EDITOR_VIDEO_MODEL_KLING_3: &str = "kling3.0";
@@ -151,6 +153,7 @@ struct PersistedEditorVideo {
     legacy_public_path: String,
     object_key: String,
     asset_object_id: String,
+    thumbnail_src: String,
 }
 
 pub async fn list_character_animation_templates(
@@ -828,6 +831,8 @@ pub(crate) async fn generate_editor_video_for_owner(
     let generation_inputs = payload.generation_inputs.clone();
     let source_resource_id = payload.source_resource_id.clone();
     let asset_kind = payload.asset_kind.clone();
+    let asset_folder_id = payload.asset_folder_id.clone();
+    let asset_label = payload.asset_label.clone();
 
     let pricing = state.editor_generation_pricing().map_err(|error| {
         editor_video_error_response(
@@ -863,17 +868,53 @@ pub(crate) async fn generate_editor_video_for_owner(
     )
     .await
     .map_err(|error| editor_video_error_response(&request_context, error))?;
+    let image_src = generated.preview_video_path.clone();
+    let effective_asset_kind = asset_kind.clone().unwrap_or_else(|| "video".to_string());
+    let generated_asset = persist_editor_generated_asset(
+        &state,
+        PersistEditorGeneratedAssetInput {
+            project_id: project_id.clone(),
+            owner_user_id: owner_user_id.clone(),
+            folder_id: asset_folder_id,
+            label: asset_label
+                .and_then(|value| {
+                    let trimmed = value.trim().to_string();
+                    (!trimmed.is_empty()).then_some(trimmed)
+                })
+                .unwrap_or_else(|| "生成视频".to_string()),
+            image_src: image_src.clone(),
+            object_key: generated.object_key.clone(),
+            asset_object_id: generated.asset_object_id.clone(),
+            width: normalized.width,
+            height: normalized.height,
+            prompt: normalized.prompt.clone(),
+            actual_prompt: Some(generated.submitted_prompt.clone()),
+            model: normalized.model.clone(),
+            provider: "VectorEngine".to_string(),
+            task_id: task_id.clone(),
+            source_resource_id: source_resource_id.clone(),
+            asset_kind: Some(effective_asset_kind.clone()),
+            generation_inputs: generation_inputs.clone(),
+            thumbnail_src: generated.thumbnail_src.clone(),
+        },
+    )
+    .await
+    .map_err(|error| editor_video_error_response(&request_context, error))?;
     let completed_project = if let Some(completion) = canvas_completion.as_ref() {
         let layer_id = format!("layer-editor-video-{task_id}");
         let item = build_editor_canvas_generated_layer_item(
             completion,
             EditorCanvasGeneratedLayerInput {
                 layer_id: layer_id.clone(),
-                resource_id: format!("local-resource-editor-video-{task_id}"),
+                resource_id: generated_asset
+                    .resource
+                    .as_ref()
+                    .map(|resource| resource.resource_id.clone())
+                    .unwrap_or_else(|| format!("local-resource-editor-video-{task_id}")),
                 title: completion.title.trim().to_string(),
-                src: generated.preview_video_path.clone(),
+                src: image_src.clone(),
                 media_type: Some("video".to_string()),
-                thumbnail_src: None,
+                thumbnail_src: generated.thumbnail_src.clone(),
                 original_width: normalized.width,
                 original_height: normalized.height,
                 display_width: completion.placeholder.width,
@@ -888,7 +929,7 @@ pub(crate) async fn generate_editor_video_for_owner(
                 asset_object_id: generated.asset_object_id.clone(),
                 duration_seconds: Some(normalized.duration_seconds),
                 source_resource_id,
-                asset_kind: Some(asset_kind.unwrap_or_else(|| "video".to_string())),
+                asset_kind: Some(effective_asset_kind.clone()),
                 generation_inputs,
                 image_sequence_frames: None,
                 preview_video_path: None,
@@ -909,12 +950,16 @@ pub(crate) async fn generate_editor_video_for_owner(
     };
     let completed_project =
         completed_project.and_then(|project| serde_json::to_value(project).ok());
+    let generated_asset = generated_asset
+        .asset
+        .and_then(|asset| serde_json::to_value(asset).ok());
 
     Ok(json_success_body(
         Some(&request_context),
         EditorVideoGenerateResponse {
             ok: true,
             video_src: generated.preview_video_path,
+            thumbnail_src: generated.thumbnail_src,
             object_key: generated.object_key,
             asset_object_id: generated.asset_object_id,
             width: normalized.width,
@@ -929,6 +974,7 @@ pub(crate) async fn generate_editor_video_for_owner(
             resolution: normalized.resolution,
             price_mud_points: normalized.price_mud_points,
             project: completed_project,
+            asset: generated_asset,
             queue_state: None,
         },
     ))
@@ -1124,13 +1170,12 @@ pub async fn resolve_role_asset_workflow(
     })?;
 
     let cache_scope_id = trim_optional_text(payload.cache_scope_id.as_deref());
-    let cache = match load_workflow_cache(&state, character_id.as_str(), cache_scope_id.as_deref())
-        .await
-    {
-        Ok(cache) => cache,
-        Err(error) if is_missing_oss_config_error(&error) => None,
-        Err(error) => return Err(character_animation_error_response(&request_context, error)),
-    };
+    let cache =
+        match load_workflow_cache(&state, character_id.as_str(), cache_scope_id.as_deref()).await {
+            Ok(cache) => cache,
+            Err(error) if is_missing_oss_config_error(&error) => None,
+            Err(error) => return Err(character_animation_error_response(&request_context, error)),
+        };
     let workflow = build_role_asset_workflow(payload.role, cache.as_ref());
 
     Ok(json_success_body(
@@ -1441,6 +1486,7 @@ async fn request_image_to_video_preview(
         preview_video_path,
         object_key: None,
         asset_object_id: None,
+        thumbnail_src: None,
         upstream_task_id,
         submitted_prompt,
         moderation_fallback_applied,
@@ -1735,6 +1781,7 @@ async fn request_editor_character_animation_preview(
         preview_video_path,
         object_key: None,
         asset_object_id: None,
+        thumbnail_src: None,
         upstream_task_id,
         submitted_prompt: prompt.to_string(),
         moderation_fallback_applied: false,
@@ -1763,6 +1810,7 @@ async fn request_editor_video_preview(
         preview_video_path: persisted.legacy_public_path,
         object_key: Some(persisted.object_key),
         asset_object_id: Some(persisted.asset_object_id),
+        thumbnail_src: Some(persisted.thumbnail_src),
         upstream_task_id,
         submitted_prompt: request.prompt.clone(),
         moderation_fallback_applied: false,
@@ -1820,6 +1868,9 @@ async fn put_generated_editor_video(
     preview_payload: MediaPayload,
 ) -> Result<PersistedEditorVideo, AppError> {
     let content_type = preview_payload.mime_type.clone();
+    let thumbnail_src =
+        put_generated_editor_video_cover(state, owner_user_id, task_id, request, &preview_payload)
+            .await?;
     let put_result = put_character_animation_object(
         state,
         LegacyAssetPrefix::CharacterDrafts,
@@ -1853,9 +1904,65 @@ async fn put_generated_editor_video(
         legacy_public_path: put_result.legacy_public_path,
         object_key: put_result.object_key,
         asset_object_id: confirmed.record.asset_object_id,
+        thumbnail_src,
     })
 }
 
+async fn put_generated_editor_video_cover(
+    state: &AppState,
+    owner_user_id: &str,
+    task_id: &str,
+    request: &NormalizedEditorVideoRequest,
+    preview_payload: &MediaPayload,
+) -> Result<String, AppError> {
+    let temp_dir = create_animation_temp_dir()?;
+    let input_path = temp_dir.join(format!("preview.{}", preview_payload.extension));
+    let output_path = temp_dir.join("cover.png");
+    fs::write(&input_path, &preview_payload.bytes).map_err(|error| {
+        AppError::from_status(StatusCode::INTERNAL_SERVER_ERROR).with_details(json!({
+            "provider": "editor-video",
+            "message": format!("写入画板视频封面临时视频失败：{error}"),
+        }))
+    })?;
+
+    let extraction_result = (|| {
+        let settings = resolve_backend_frame_extraction_settings(state);
+        extract_video_frame_to_png(&input_path, &output_path, 0.0, &settings)?;
+        let cover_bytes = fs::read(&output_path).map_err(|error| {
+            AppError::from_status(StatusCode::BAD_GATEWAY).with_details(json!({
+                "provider": "editor-video",
+                "message": format!("读取画板视频首帧封面失败：{error}"),
+            }))
+        })?;
+        Ok::<_, AppError>(cover_bytes)
+    })();
+    let _ = fs::remove_dir_all(&temp_dir);
+    let cover_bytes = extraction_result?;
+
+    let put_result = put_character_animation_object(
+        state,
+        LegacyAssetPrefix::CharacterDrafts,
+        vec![
+            "editor-videos".to_string(),
+            sanitize_storage_segment(request.model.as_str(), "model"),
+            task_id.to_string(),
+        ],
+        "cover.png".to_string(),
+        "image/png".to_string(),
+        cover_bytes,
+        build_asset_metadata(
+            EDITOR_VIDEO_ASSET_KIND,
+            owner_user_id,
+            EDITOR_VIDEO_ENTITY_KIND,
+            task_id,
+            EDITOR_VIDEO_COVER_SLOT,
+            request.model.as_str(),
+        ),
+    )
+    .await?;
+    Ok(put_result.legacy_public_path)
+}
+
 async fn create_editor_ark_image_to_video_task(
     http_client: &reqwest::Client,
     settings: &EditorCharacterAnimationSettings,
@@ -4925,6 +5032,7 @@ struct GeneratedAnimationPreview {
     preview_video_path: String,
     object_key: Option<String>,
     asset_object_id: Option<String>,
+    thumbnail_src: Option<String>,
     upstream_task_id: String,
     submitted_prompt: String,
     moderation_fallback_applied: bool,
@@ -5363,6 +5471,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("editor video request should normalize");
 
@@ -5393,6 +5503,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance fast request should normalize");
 
@@ -5420,6 +5532,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance standard request should normalize");
 
@@ -5447,6 +5561,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance standard 1080p request should normalize");
 
@@ -5475,6 +5591,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect_err("seedance fast should reject 1080p");
 
@@ -5502,6 +5620,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance multimodal request should normalize");
 
@@ -5538,6 +5658,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect_err("Seedance reference videos must not accept Base64 data URLs");
 
@@ -5564,6 +5686,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance multimodal request should normalize");
 
@@ -5610,6 +5734,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("seedance objectKey request should normalize");
 
@@ -5650,6 +5776,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect_err("audio-only references should fail");
 
diff --git a/server-rs/crates/api-server/src/editor_project.rs b/server-rs/crates/api-server/src/editor_project.rs
index 4695e5180..f4be80a88 100644
--- a/server-rs/crates/api-server/src/editor_project.rs
+++ b/server-rs/crates/api-server/src/editor_project.rs
@@ -339,9 +339,9 @@ pub struct EditorAssetResponse {
 }
 
 #[derive(Debug)]
-struct EditorGeneratedAssetRecord {
-    resource: Option<EditorProjectResourcePayload>,
-    asset: Option<EditorAssetPayload>,
+pub(crate) struct EditorGeneratedAssetRecord {
+    pub(crate) resource: Option<EditorProjectResourcePayload>,
+    pub(crate) asset: Option<EditorAssetPayload>,
 }
 
 struct EditorCanvasGenerationCompletionResult {
@@ -350,24 +350,25 @@ struct EditorCanvasGenerationCompletionResult {
 }
 
 #[derive(Debug)]
-struct PersistEditorGeneratedAssetInput {
-    project_id: Option<String>,
-    owner_user_id: String,
-    folder_id: Option<String>,
-    label: String,
-    image_src: String,
-    object_key: Option<String>,
-    asset_object_id: Option<String>,
-    width: u32,
-    height: u32,
-    prompt: String,
-    actual_prompt: Option<String>,
-    model: String,
-    provider: String,
-    task_id: String,
-    source_resource_id: Option<String>,
-    asset_kind: Option<String>,
-    generation_inputs: Option<Value>,
+pub(crate) struct PersistEditorGeneratedAssetInput {
+    pub(crate) project_id: Option<String>,
+    pub(crate) owner_user_id: String,
+    pub(crate) folder_id: Option<String>,
+    pub(crate) label: String,
+    pub(crate) image_src: String,
+    pub(crate) object_key: Option<String>,
+    pub(crate) asset_object_id: Option<String>,
+    pub(crate) width: u32,
+    pub(crate) height: u32,
+    pub(crate) prompt: String,
+    pub(crate) actual_prompt: Option<String>,
+    pub(crate) model: String,
+    pub(crate) provider: String,
+    pub(crate) task_id: String,
+    pub(crate) source_resource_id: Option<String>,
+    pub(crate) asset_kind: Option<String>,
+    pub(crate) generation_inputs: Option<Value>,
+    pub(crate) thumbnail_src: Option<String>,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -479,7 +480,7 @@ pub struct EditorCanvasPayload {
 #[derive(Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct EditorProjectResourcePayload {
-    resource_id: String,
+    pub(crate) resource_id: String,
     project_id: String,
     owner_user_id: String,
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -545,6 +546,7 @@ pub struct EditorAssetPayload {
     generation_inputs: Option<Value>,
     source_resource_id: Option<String>,
     public_showcase_enabled: Option<bool>,
+    thumbnail_src: Option<String>,
     created_at: String,
     updated_at: String,
 }
@@ -966,6 +968,7 @@ pub async fn create_editor_asset(
             generation_inputs_json,
             source_resource_id: None,
             now_micros: current_utc_micros(),
+            thumbnail_src: None,
         })
         .await
         .map_err(map_editor_project_error)?;
@@ -1300,6 +1303,7 @@ pub(crate) async fn generate_editor_image_for_owner(
             source_resource_id: payload.source_resource_id,
             asset_kind: payload.asset_kind,
             generation_inputs: payload.generation_inputs,
+            thumbnail_src: None,
         },
     )
     .await?;
@@ -1658,6 +1662,7 @@ pub(crate) async fn edit_editor_image_for_owner(
             source_resource_id: payload.source_resource_id,
             asset_kind: payload.asset_kind,
             generation_inputs: payload.generation_inputs,
+            thumbnail_src: None,
         },
     )
     .await?;
@@ -1856,6 +1861,7 @@ pub(crate) async fn generate_editor_icon_spritesheet_for_owner(
             source_resource_id: None,
             asset_kind: Some("icon-spritesheet".to_string()),
             generation_inputs: generation_inputs.clone(),
+            thumbnail_src: None,
         },
     )
     .await?;
@@ -2088,6 +2094,7 @@ pub(crate) async fn extract_editor_ui_design_assets_for_owner(
             source_resource_id: None,
             asset_kind: Some("icon-spritesheet".to_string()),
             generation_inputs: generation_inputs.clone(),
+            thumbnail_src: None,
         },
     )
     .await?;
@@ -2137,6 +2144,7 @@ pub(crate) async fn extract_editor_ui_design_assets_for_owner(
                 source_resource_id: None,
                 asset_kind: Some("icon".to_string()),
                 generation_inputs: generation_inputs.clone(),
+                thumbnail_src: None,
             },
         )
         .await?;
@@ -2570,6 +2578,7 @@ pub(crate) fn editor_asset_payload_from_record(record: EditorAssetRecord) -> Edi
             .map(sanitize_editor_payload_inline_media),
         source_resource_id: record.source_resource_id,
         public_showcase_enabled: record.public_showcase_enabled,
+        thumbnail_src: normalize_optional_string(record.thumbnail_src),
         created_at: record.created_at,
         updated_at: record.updated_at,
     }
@@ -2692,7 +2701,7 @@ fn fill_missing_media_identity_field(
     }
 }
 
-async fn persist_editor_generated_asset(
+pub(crate) async fn persist_editor_generated_asset(
     state: &AppState,
     input: PersistEditorGeneratedAssetInput,
 ) -> Result<EditorGeneratedAssetRecord, AppError> {
@@ -2760,6 +2769,7 @@ async fn persist_editor_generated_asset(
                 generation_inputs_json,
                 source_resource_id: created_resource_id,
                 now_micros,
+                thumbnail_src: normalize_optional_string(input.thumbnail_src),
             })
             .await
             .map_err(map_editor_project_error)?;
diff --git a/server-rs/crates/api-server/src/external_editor_api.rs b/server-rs/crates/api-server/src/external_editor_api.rs
index 829b22d23..4994dffea 100644
--- a/server-rs/crates/api-server/src/external_editor_api.rs
+++ b/server-rs/crates/api-server/src/external_editor_api.rs
@@ -492,6 +492,7 @@ pub async fn create_external_editor_asset(
             generation_inputs_json,
             source_resource_id: None,
             now_micros: current_utc_micros(),
+            thumbnail_src: None,
         })
         .await
         .map_err(map_editor_project_error)?;
diff --git a/server-rs/crates/shared-contracts/src/assets.rs b/server-rs/crates/shared-contracts/src/assets.rs
index 8bfc456e1..841ca516c 100644
--- a/server-rs/crates/shared-contracts/src/assets.rs
+++ b/server-rs/crates/shared-contracts/src/assets.rs
@@ -387,6 +387,10 @@ pub struct EditorVideoGenerateRequest {
     pub source_resource_id: Option<String>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub asset_kind: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub asset_folder_id: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub asset_label: Option<String>,
 }
 
 fn default_editor_video_web_search_enabled() -> bool {
@@ -399,6 +403,8 @@ pub struct EditorVideoGenerateResponse {
     pub ok: bool,
     pub video_src: String,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub thumbnail_src: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub object_key: Option<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub asset_object_id: Option<String>,
@@ -417,6 +423,8 @@ pub struct EditorVideoGenerateResponse {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub project: Option<Value>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub asset: Option<Value>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub queue_state: Option<ExternalGenerationJobStatusRecord>,
 }
 
@@ -1141,6 +1149,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("request should serialize");
 
@@ -1172,6 +1182,8 @@ mod tests {
             generation_inputs: None,
             source_resource_id: None,
             asset_kind: None,
+            asset_folder_id: None,
+            asset_label: None,
         })
         .expect("request should serialize");
 
@@ -1194,6 +1206,7 @@ mod tests {
         let payload = serde_json::to_value(EditorVideoGenerateResponse {
             ok: true,
             video_src: "/generated-editor-videos/task-1/preview.mp4".to_string(),
+            thumbnail_src: Some("/generated-editor-videos/task-1/cover.png".to_string()),
             object_key: Some(
                 "generated-character-drafts/editor-videos/task-1/preview.mp4".to_string(),
             ),
@@ -1210,6 +1223,7 @@ mod tests {
             resolution: "480p".to_string(),
             price_mud_points: 100,
             project: None,
+            asset: None,
             queue_state: None,
         })
         .expect("response should serialize");
@@ -1218,6 +1232,10 @@ mod tests {
             payload["videoSrc"],
             json!("/generated-editor-videos/task-1/preview.mp4")
         );
+        assert_eq!(
+            payload["thumbnailSrc"],
+            json!("/generated-editor-videos/task-1/cover.png")
+        );
         assert_eq!(
             payload["objectKey"],
             json!("generated-character-drafts/editor-videos/task-1/preview.mp4")
diff --git a/server-rs/crates/spacetime-client/src/mapper/editor_project.rs b/server-rs/crates/spacetime-client/src/mapper/editor_project.rs
index c2893f781..f959b62f3 100644
--- a/server-rs/crates/spacetime-client/src/mapper/editor_project.rs
+++ b/server-rs/crates/spacetime-client/src/mapper/editor_project.rs
@@ -94,6 +94,7 @@ pub struct EditorAssetRecord {
     pub generation_inputs: Option<serde_json::Value>,
     pub source_resource_id: Option<String>,
     pub public_showcase_enabled: Option<bool>,
+    pub thumbnail_src: Option<String>,
     pub created_at: String,
     pub updated_at: String,
 }
@@ -232,6 +233,7 @@ pub struct EditorAssetCreateRecordInput {
     pub generation_inputs_json: Option<String>,
     pub source_resource_id: Option<String>,
     pub now_micros: i64,
+    pub thumbnail_src: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -442,6 +444,7 @@ impl From<EditorAssetCreateRecordInput> for crate::module_bindings::EditorAssetC
             generation_inputs_json: input.generation_inputs_json,
             source_resource_id: input.source_resource_id,
             now_micros: input.now_micros,
+            thumbnail_src: input.thumbnail_src,
         }
     }
 }
@@ -756,6 +759,7 @@ fn map_editor_asset_snapshot(
         generation_inputs,
         source_resource_id: snapshot.source_resource_id,
         public_showcase_enabled: snapshot.public_showcase_enabled,
+        thumbnail_src: snapshot.thumbnail_src,
         created_at: format_timestamp_micros(snapshot.created_at_micros),
         updated_at: format_timestamp_micros(snapshot.updated_at_micros),
     })
diff --git a/server-rs/crates/spacetime-client/src/module_bindings.rs b/server-rs/crates/spacetime-client/src/module_bindings.rs
index 4a647bd63..c0691341c 100644
--- a/server-rs/crates/spacetime-client/src/module_bindings.rs
+++ b/server-rs/crates/spacetime-client/src/module_bindings.rs
@@ -1,7 +1,7 @@
 // THIS FILE IS AUTOMATICALLY GENERATED BY SPACETIMEDB. EDITS TO THIS FILE
 // WILL NOT BE SAVED. MODIFY TABLES IN YOUR MODULE SOURCE CODE INSTEAD.
 
-// This was generated using spacetimedb cli version 2.5.0 (commit 19cbf2b219ac9fd7fdca6c5e2c61a3a2f0319515).
+// This was generated using spacetimedb cli version 2.5.0 (commit ca16958ef0a5f8c816700d2255a0b20ecacff901).
 
 #![allow(unused, clippy::all)]
 use spacetimedb_sdk::__codegen::{self as __sdk, __lib, __sats, __ws};
diff --git a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_create_input_type.rs b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_create_input_type.rs
index 5d39f1fcc..74aa13bfd 100644
--- a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_create_input_type.rs
+++ b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_create_input_type.rs
@@ -26,6 +26,7 @@ pub struct EditorAssetCreateInput {
     pub generation_inputs_json: Option<String>,
     pub source_resource_id: Option<String>,
     pub now_micros: i64,
+    pub thumbnail_src: Option<String>,
 }
 
 impl __sdk::InModule for EditorAssetCreateInput {
diff --git a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_snapshot_type.rs b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_snapshot_type.rs
index 419250158..c1111852c 100644
--- a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_snapshot_type.rs
+++ b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_snapshot_type.rs
@@ -27,6 +27,7 @@ pub struct EditorAssetSnapshot {
     pub public_showcase_enabled: Option<bool>,
     pub created_at_micros: i64,
     pub updated_at_micros: i64,
+    pub thumbnail_src: Option<String>,
 }
 
 impl __sdk::InModule for EditorAssetSnapshot {
diff --git a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_type.rs b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_type.rs
index ad126e534..dccacd1f3 100644
--- a/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_type.rs
+++ b/server-rs/crates/spacetime-client/src/module_bindings/editor_asset_type.rs
@@ -27,6 +27,7 @@ pub struct EditorAsset {
     pub asset_kind: Option<String>,
     pub generation_inputs_json: Option<String>,
     pub source_resource_id: Option<String>,
+    pub thumbnail_src: Option<String>,
 }
 
 impl __sdk::InModule for EditorAsset {
@@ -57,6 +58,7 @@ pub struct EditorAssetCols {
     pub asset_kind: __sdk::__query_builder::Col<EditorAsset, Option<String>>,
     pub generation_inputs_json: __sdk::__query_builder::Col<EditorAsset, Option<String>>,
     pub source_resource_id: __sdk::__query_builder::Col<EditorAsset, Option<String>>,
+    pub thumbnail_src: __sdk::__query_builder::Col<EditorAsset, Option<String>>,
 }
 
 impl __sdk::__query_builder::HasCols for EditorAsset {
@@ -86,6 +88,7 @@ impl __sdk::__query_builder::HasCols for EditorAsset {
                 "generation_inputs_json",
             ),
             source_resource_id: __sdk::__query_builder::Col::new(table_name, "source_resource_id"),
+            thumbnail_src: __sdk::__query_builder::Col::new(table_name, "thumbnail_src"),
         }
     }
 }
diff --git a/server-rs/crates/spacetime-module/src/editor_project_storage.rs b/server-rs/crates/spacetime-module/src/editor_project_storage.rs
index 03b550d26..e88e2f61e 100644
--- a/server-rs/crates/spacetime-module/src/editor_project_storage.rs
+++ b/server-rs/crates/spacetime-module/src/editor_project_storage.rs
@@ -124,6 +124,8 @@ pub struct EditorAsset {
     generation_inputs_json: Option<String>,
     #[default(None::<String>)]
     source_resource_id: Option<String>,
+    #[default(None::<String>)]
+    thumbnail_src: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, SpacetimeType)]
@@ -282,6 +284,7 @@ pub struct EditorAssetSnapshot {
     pub public_showcase_enabled: Option<bool>,
     pub created_at_micros: i64,
     pub updated_at_micros: i64,
+    pub thumbnail_src: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, SpacetimeType)]
@@ -342,6 +345,7 @@ pub struct EditorAssetCreateInput {
     pub generation_inputs_json: Option<String>,
     pub source_resource_id: Option<String>,
     pub now_micros: i64,
+    pub thumbnail_src: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, SpacetimeType)]
@@ -1267,6 +1271,7 @@ fn create_editor_asset(
         asset_kind: normalize_optional(input.asset_kind),
         generation_inputs_json: normalize_optional(input.generation_inputs_json),
         source_resource_id: normalize_optional(input.source_resource_id),
+        thumbnail_src: normalize_optional(input.thumbnail_src),
     });
     ctx.db
         .editor_asset()
@@ -1315,6 +1320,7 @@ fn update_editor_asset(
         asset_kind: asset.asset_kind,
         generation_inputs_json: asset.generation_inputs_json,
         source_resource_id: asset.source_resource_id,
+        thumbnail_src: asset.thumbnail_src,
     });
     ctx.db
         .editor_asset()
@@ -1359,6 +1365,7 @@ fn repair_editor_asset_media(
         asset_kind: asset.asset_kind,
         generation_inputs_json: asset.generation_inputs_json,
         source_resource_id: asset.source_resource_id,
+        thumbnail_src: asset.thumbnail_src,
     });
 
     ctx.db
@@ -1726,6 +1733,7 @@ fn asset_snapshot_from_row(ctx: &ReducerContext, row: EditorAsset) -> EditorAsse
         public_showcase_enabled,
         created_at_micros: row.created_at.to_micros_since_unix_epoch(),
         updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
+        thumbnail_src: row.thumbnail_src,
     }
 }
 
@@ -1847,12 +1855,7 @@ fn project_resource_input_copies_source_media(
         .find(&source_resource_id.to_string())
         .filter(|source_resource| source_resource.owner_user_id == owner_user_id)
         .is_some_and(|source_resource| {
-            project_resource_matches_media(
-                &source_resource,
-                asset_object_id,
-                object_key,
-                image_src,
-            )
+            project_resource_matches_media(&source_resource, asset_object_id, object_key, image_src)
         })
 }
 
@@ -1883,12 +1886,7 @@ fn find_reusable_project_resource_for_input(
                         .as_deref()
                         .map(str::trim)
                         .is_some_and(|value| value == source_resource_id))
-                && project_resource_matches_media(
-                    resource,
-                    asset_object_id,
-                    object_key,
-                    image_src,
-                )
+                && project_resource_matches_media(resource, asset_object_id, object_key, image_src)
         })
         .collect::<Vec<_>>();
     matches.sort_by(|left, right| {
@@ -1934,12 +1932,7 @@ fn matching_media_ref(left: &str, right: &str) -> bool {
 }
 
 fn normalize_media_ref(value: &str) -> String {
-    let trimmed_value = value
-        .trim()
-        .split('?')
-        .next()
-        .unwrap_or("")
-        .trim();
+    let trimmed_value = value.trim().split('?').next().unwrap_or("").trim();
     let path_value = if let Some(protocol_index) = trimmed_value.find("://") {
         let after_protocol = &trimmed_value[protocol_index + 3..];
         after_protocol
diff --git a/server-rs/crates/spacetime-module/src/migration.rs b/server-rs/crates/spacetime-module/src/migration.rs
index b76f1ab31..ef6bffff4 100644
--- a/server-rs/crates/spacetime-module/src/migration.rs
+++ b/server-rs/crates/spacetime-module/src/migration.rs
@@ -1408,6 +1408,9 @@ fn normalize_migration_row(table_name: &str, value: &serde_json::Value) -> serde
             object
                 .entry("source_resource_id".to_string())
                 .or_insert(serde_json::Value::Null);
+            object
+                .entry("thumbnail_src".to_string())
+                .or_insert(serde_json::Value::Null);
         }
     }
     next_value
diff --git a/src/components/image-editor/ImageCanvasEditorModel.test.ts b/src/components/image-editor/ImageCanvasEditorModel.test.ts
index 31922ec29..935f5be14 100644
--- a/src/components/image-editor/ImageCanvasEditorModel.test.ts
+++ b/src/components/image-editor/ImageCanvasEditorModel.test.ts
@@ -102,6 +102,8 @@ describe('ImageCanvasEditorModel', () => {
           folderId: 'project',
           label: '开场动画.mp4',
           imageSrc: '/generated-character-drafts/editor/asset-library/video/开场动画.mp4',
+          thumbnailSrc:
+            '/generated-character-drafts/editor/asset-library/video/开场动画-cover.png',
           width: 560,
           height: 315,
           sourceType: 'uploaded',
@@ -112,7 +114,11 @@ describe('ImageCanvasEditorModel', () => {
     });
 
     expect(library.assets[0]).toMatchObject({ mediaType: 'audio' });
-    expect(library.assets[1]).toMatchObject({ mediaType: 'video' });
+    expect(library.assets[1]).toMatchObject({
+      mediaType: 'video',
+      thumbnailSrc:
+        '/generated-character-drafts/editor/asset-library/video/开场动画-cover.png',
+    });
     expect(
       createLayerFromAsset(
         library.assets[0]!,
@@ -139,6 +145,7 @@ describe('ImageCanvasEditorModel', () => {
       persisted: true,
       objectKey: 'oss/asset-1.png',
       assetObjectId: 'object-1',
+      thumbnailSrc: '/generated-character-drafts/editor/asset-1-cover.png',
       sourceResourceId: 'resource-source-1',
     };
 
@@ -158,6 +165,7 @@ describe('ImageCanvasEditorModel', () => {
       originalHeight: 480,
       objectKey: 'oss/asset-1.png',
       assetObjectId: 'object-1',
+      thumbnailSrc: '/generated-character-drafts/editor/asset-1-cover.png',
       sourceAssetId: 'asset-1',
       sourceResourceId: 'resource-source-1',
     });
diff --git a/src/components/image-editor/ImageCanvasEditorModel.ts b/src/components/image-editor/ImageCanvasEditorModel.ts
index b3466e6a7..dae0eeecc 100644
--- a/src/components/image-editor/ImageCanvasEditorModel.ts
+++ b/src/components/image-editor/ImageCanvasEditorModel.ts
@@ -172,6 +172,7 @@ export function createLayerFromAsset(
     originalHeight: asset.height,
     zIndex: index + 10,
     sourceType: asset.sourceType,
+    thumbnailSrc: asset.thumbnailSrc,
     prompt: asset.prompt,
     actualPrompt: asset.actualPrompt,
     model: asset.model,
@@ -710,6 +711,7 @@ export function mapAssetLibrarySnapshot(
         taskId: asset.taskId ?? undefined,
         objectKey: asset.objectKey ?? undefined,
         assetObjectId: asset.assetObjectId ?? undefined,
+        thumbnailSrc: asset.thumbnailSrc ?? undefined,
         sourceResourceId: asset.sourceResourceId ?? null,
         publicShowcaseEnabled: asset.publicShowcaseEnabled ?? null,
         assetKind: canvasAssetKindOrNull(asset.assetKind),
diff --git a/src/components/image-editor/ImageCanvasEditorView.tsx b/src/components/image-editor/ImageCanvasEditorView.tsx
index 8ff814f0a..e4505aa32 100644
--- a/src/components/image-editor/ImageCanvasEditorView.tsx
+++ b/src/components/image-editor/ImageCanvasEditorView.tsx
@@ -647,6 +647,7 @@ export function ImageCanvasEditorView() {
           taskId: asset.taskId ?? undefined,
           objectKey: asset.objectKey ?? undefined,
           assetObjectId: asset.assetObjectId ?? undefined,
+          thumbnailSrc: asset.thumbnailSrc ?? undefined,
           durationSeconds: asset.durationSeconds ?? undefined,
           assetKind: canvasAssetKindOrNull(asset.assetKind),
           generationInputs: generationInputsOrNull(asset.generationInputs),
diff --git a/src/components/image-editor/ImageCanvasGenerationLayerModel.test.ts b/src/components/image-editor/ImageCanvasGenerationLayerModel.test.ts
index 76c858d25..611a0cb2d 100644
--- a/src/components/image-editor/ImageCanvasGenerationLayerModel.test.ts
+++ b/src/components/image-editor/ImageCanvasGenerationLayerModel.test.ts
@@ -519,6 +519,21 @@ describe('ImageCanvasGenerationLayerModel', () => {
         provider: 'VectorEngine',
         taskId: 'video-task-1',
         priceMudPoints: 40,
+        durationSeconds: 5,
+        thumbnailSrc: '/generated-character-drafts/editor-videos/cover.png',
+        asset: {
+          assetId: 'asset-video-bff',
+          folderId: 'user-1:asset-folder:project',
+          label: '生成视频 15',
+          imageSrc: '/generated-character-drafts/editor-videos/video.mp4',
+          thumbnailSrc: '/generated-character-drafts/editor-videos/cover.png',
+          objectKey: 'generated-character-drafts/editor-videos/video.mp4',
+          assetObjectId: 'assetobj-video-1',
+          width: 1280,
+          height: 720,
+          sourceType: 'generated',
+          assetKind: 'video',
+        },
       },
       generatedIndex: 15,
       title: '生成视频 15',
@@ -534,7 +549,10 @@ describe('ImageCanvasGenerationLayerModel', () => {
       assetKind: 'video',
       objectKey: 'generated-character-drafts/editor-videos/video.mp4',
       assetObjectId: 'assetobj-video-1',
+      thumbnailSrc: '/generated-character-drafts/editor-videos/cover.png',
+      durationSeconds: 5,
     });
+    expect(layer.generatedAssetSnapshot?.assetId).toBe('asset-video-bff');
   });
 
   it('creates character animation result layers as playable image sequences', () => {
diff --git a/src/components/image-editor/ImageCanvasGenerationLayerModel.ts b/src/components/image-editor/ImageCanvasGenerationLayerModel.ts
index e9619f61d..1b0de8309 100644
--- a/src/components/image-editor/ImageCanvasGenerationLayerModel.ts
+++ b/src/components/image-editor/ImageCanvasGenerationLayerModel.ts
@@ -438,9 +438,12 @@ export function createVideoResultLayer({
     taskId: generated.taskId,
     objectKey: generated.objectKey,
     assetObjectId: generated.assetObjectId,
+    thumbnailSrc: generated.thumbnailSrc ?? generated.asset?.thumbnailSrc ?? undefined,
     sourceResourceId: sourceLayer?.resourceId,
     groupId: sourceLayer?.groupId,
     generationInputs,
+    durationSeconds: generated.durationSeconds,
+    generatedAssetSnapshot: generated.asset ?? undefined,
   };
 }
 
diff --git a/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.test.tsx b/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.test.tsx
index a9401c304..fe02a5cba 100644
--- a/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.test.tsx
+++ b/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.test.tsx
@@ -161,6 +161,7 @@ function SubmissionWorkflowHarness({
   initialCharacterAnimationPanel = null,
   initialLayers = [createLayer()],
   projectId = undefined,
+  upsertGeneratedAsset = undefined,
   applyProjectSnapshot = undefined,
   onWalletBalanceMayHaveChanged = undefined,
 }: {
@@ -170,6 +171,9 @@ function SubmissionWorkflowHarness({
   initialCharacterAnimationPanel?: CharacterAnimationPanelState | null;
   initialLayers?: CanvasLayer[];
   projectId?: string | null;
+  upsertGeneratedAsset?: Parameters<
+    typeof useImageCanvasGenerationSubmissionWorkflow
+  >[0]['upsertGeneratedAsset'];
   applyProjectSnapshot?: Parameters<
     typeof useImageCanvasGenerationSubmissionWorkflow
   >[0]['applyProjectSnapshot'];
@@ -245,6 +249,7 @@ function SubmissionWorkflowHarness({
     },
     projectId,
     assetFolderId: projectId ? 'project' : undefined,
+    upsertGeneratedAsset,
     applyProjectSnapshot,
     onWalletBalanceMayHaveChanged,
   });
@@ -758,11 +763,39 @@ describe('useImageCanvasGenerationSubmissionWorkflow', () => {
   });
 
   it('submits video quick edits through the video API with the source video', async () => {
+    const applyProjectSnapshot = vi.fn();
+    const upsertGeneratedAsset = vi.fn();
     generateEditorVideoMock.mockResolvedValueOnce(
-      createVideoGenerated({ prompt: '把当前图改成雨天' }),
+      createVideoGenerated({
+        prompt: '把当前图改成雨天',
+        project: {
+          projectId: 'editor-project-1',
+          title: '项目',
+          coverImageSrc: null,
+          viewport: { x: 0, y: 0, scale: 1 },
+          layers: [],
+          resources: [],
+          createdAt: '2026-06-27T00:00:00.000Z',
+          updatedAt: '2026-06-27T00:00:00.000Z',
+        },
+        asset: {
+          assetId: 'asset-video-quick-edit',
+          folderId: 'user-1:asset-folder:project',
+          label: '源视频 快速编辑',
+          imageSrc: 'https://assets.example.test/generated-video.mp4',
+          thumbnailSrc: 'https://assets.example.test/generated-video-cover.png',
+          width: 854,
+          height: 480,
+          sourceType: 'generated',
+          assetKind: 'video',
+        },
+      }),
     );
     render(
       <SubmissionWorkflowHarness
+        projectId="editor-project-1"
+        applyProjectSnapshot={applyProjectSnapshot}
+        upsertGeneratedAsset={upsertGeneratedAsset}
         initialLayers={[
           createLayer({
             title: '源视频',
@@ -811,14 +844,22 @@ describe('useImageCanvasGenerationSubmissionWorkflow', () => {
           referenceVideoSrcs: [
             'generated-character-drafts/editor/videos/source.mp4',
           ],
+          assetFolderId: 'project',
+          assetLabel: '源视频 快速编辑',
         }),
       );
     });
     expect(generateEditorImageMock).not.toHaveBeenCalled();
     expect(generateEditorCharacterAnimationMock).not.toHaveBeenCalled();
     await waitFor(() => {
-      expect(screen.getByTestId('layers').textContent).toContain(
-        'layer-video-1:源视频 快速编辑:resource-source:video:video:https://assets.example.test/generated-video.mp4',
+      expect(applyProjectSnapshot).toHaveBeenCalledWith(
+        expect.objectContaining({ projectId: 'editor-project-1' }),
+      );
+      expect(upsertGeneratedAsset).toHaveBeenCalledWith(
+        expect.objectContaining({
+          assetId: 'asset-video-quick-edit',
+          thumbnailSrc: 'https://assets.example.test/generated-video-cover.png',
+        }),
       );
     });
   });
diff --git a/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.ts b/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.ts
index 0e4cca2ec..8f6ee8bde 100644
--- a/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.ts
+++ b/src/components/image-editor/useImageCanvasGenerationSubmissionWorkflow.ts
@@ -1136,6 +1136,8 @@ export function useImageCanvasGenerationSubmissionWorkflow({
             generationInputs,
             sourceResourceId: quickEditSourceLayer.resourceId,
             assetKind: quickEditSourceLayer.assetKind,
+            assetFolderId,
+            assetLabel: `${quickEditSourceLayer.title} 快速编辑`,
             ...(projectId && quickEditCanvasCompletionPlaceholder
               ? {
                   canvasCompletion: {
@@ -1160,6 +1162,9 @@ export function useImageCanvasGenerationSubmissionWorkflow({
         }
         if (generated.project && applyProjectSnapshot) {
           applyProjectSnapshot(generated.project);
+          if (generated.asset) {
+            upsertGeneratedAsset?.(generated.asset);
+          }
           return;
         }
         addVideoResultLayer(
@@ -1324,6 +1329,7 @@ export function useImageCanvasGenerationSubmissionWorkflow({
     openCanvasGenerationDialog,
     projectId,
     assetFolderId,
+    upsertGeneratedAsset,
     quickEditPanel,
     quickEditSourceLayer,
     quickEditSelectionState,
@@ -1476,6 +1482,8 @@ export function useImageCanvasGenerationSubmissionWorkflow({
               ...submissionPlan.input,
               projectId,
               generationInputs: submissionPlan.result.generationInputs,
+              assetFolderId,
+              assetLabel: submissionPlan.result.title,
               ...(projectId && canvasCompletionPlaceholder
                 ? {
                     canvasCompletion: {
@@ -1500,6 +1508,9 @@ export function useImageCanvasGenerationSubmissionWorkflow({
           }
           if (generated.project && applyProjectSnapshot) {
             applyProjectSnapshot(generated.project);
+            if (generated.asset) {
+              upsertGeneratedAsset?.(generated.asset);
+            }
             return;
           }
           addVideoResultLayer(
diff --git a/src/services/image-editor/editorProjectClient.test.ts b/src/services/image-editor/editorProjectClient.test.ts
index 5aacb0da2..1a6efd309 100644
--- a/src/services/image-editor/editorProjectClient.test.ts
+++ b/src/services/image-editor/editorProjectClient.test.ts
@@ -1097,6 +1097,18 @@ describe('editorProjectClient', () => {
       taskId: 'video-task-1',
       durationSeconds: 5,
       resolution: '480p',
+      thumbnailSrc: '/generated-editor-videos/video-task-1/cover.png',
+      asset: {
+        assetId: 'asset-video-1',
+        folderId: 'user-1:asset-folder:project',
+        label: '生成视频 1',
+        imageSrc: '/generated-editor-videos/video-task-1/preview.mp4',
+        thumbnailSrc: '/generated-editor-videos/video-task-1/cover.png',
+        width: 1280,
+        height: 720,
+        sourceType: 'generated',
+        assetKind: 'video',
+      },
     });
 
     const result = await generateEditorVideo({
@@ -1107,9 +1119,18 @@ describe('editorProjectClient', () => {
       resolution: '480p',
       mode: 'std',
       sound: 'off',
+      assetFolderId: 'project',
+      assetLabel: '生成视频 1',
     });
 
     expect(result.taskId).toBe('video-task-1');
+    expect(result.thumbnailSrc).toBe(
+      '/generated-editor-videos/video-task-1/cover.png',
+    );
+    expect(result.asset?.assetId).toBe('asset-video-1');
+    expect(result.asset?.thumbnailSrc).toBe(
+      '/generated-editor-videos/video-task-1/cover.png',
+    );
     expect(requestJsonMock).toHaveBeenCalledWith(
       '/api/editor/videos/generations',
       expect.objectContaining({
@@ -1124,6 +1145,8 @@ describe('editorProjectClient', () => {
           mode: 'std',
           sound: 'off',
           webSearchEnabled: true,
+          assetFolderId: 'project',
+          assetLabel: '生成视频 1',
         }),
       }),
       '生成视频失败',
diff --git a/src/services/image-editor/editorProjectClient.ts b/src/services/image-editor/editorProjectClient.ts
index 746018eb2..885bb2235 100644
--- a/src/services/image-editor/editorProjectClient.ts
+++ b/src/services/image-editor/editorProjectClient.ts
@@ -97,6 +97,7 @@ export type EditorAssetSnapshot = {
   folderId: string;
   label: string;
   imageSrc: string;
+  thumbnailSrc?: string | null;
   objectKey?: string | null;
   assetObjectId?: string | null;
   width: number;
@@ -329,10 +330,13 @@ export type EditorVideoGenerationInput = {
   generationInputs?: EditorAssetGenerationInputs | null;
   sourceResourceId?: string | null;
   assetKind?: string | null;
+  assetFolderId?: string | null;
+  assetLabel?: string | null;
 };
 
 export type EditorVideoGenerationResult = {
   videoSrc: string;
+  thumbnailSrc?: string | null;
   objectKey?: string | null;
   assetObjectId?: string | null;
   width: number;
@@ -343,8 +347,10 @@ export type EditorVideoGenerationResult = {
   model: string;
   provider: string;
   taskId: string;
+  durationSeconds: number;
   priceMudPoints?: number;
   project?: EditorProjectSnapshot | null;
+  asset?: EditorAssetSnapshot | null;
   queueState?: ExternalGenerationJobStatusRecord | null;
 };
 
@@ -912,6 +918,8 @@ export async function generateEditorVideo(input: EditorVideoGenerationInput) {
         ? { sourceResourceId: input.sourceResourceId }
         : {}),
       ...(input.assetKind ? { assetKind: input.assetKind } : {}),
+      ...(input.assetFolderId ? { assetFolderId: input.assetFolderId } : {}),
+      ...(input.assetLabel ? { assetLabel: input.assetLabel } : {}),
     }),
     '生成视频失败',
     {