docs: record Design chat generation client integration

.project-docs/20-architecture/data-flow.md

@@ -38,7 +38,7 @@
 | 设计有限请求生命周期 | Renderer Workspace JSON 调用 / shared Works token refresh | Main deadline → Electron transport → safe-read-only Node fallback → Host API timeout envelope | 包括取凭据、请求头和响应 body 的完整生命周期最多 30 秒；超时 abort transport 并稳定返回 `504 DESIGN_WORKSPACE_REQUEST_TIMEOUT`；透明 fallback 只允许 `GET`/`HEAD`/`OPTIONS`，mutation 不隐式重放 |
 | Design Asset binding | 当前 Workspace 已完成图片 / 本地上传 | canonical Asset → typed `asset_binding` input → Current Specification revision | 图片/视频用途由 Specification medium 和 binding role 决定；只提交真实 Workspace Asset identity，不使用本地路径或自然语言占位 |
 | Design reference alias editing | Active plan 的 final Prompt 与 binding-only reference row | `@图片N` token/add/replace/remove → typed field/collection operations → Current Specification revision | Prompt 决定图片如何参与生成；row 只管理稳定 reference/Asset identity。未绑定 alias 定点要求上传并阻止 Quote；删除时原子移除 binding 并重排后续 alias，既有 alias 不重复插入 |
-| Design Quote and confirmation | 当前 exact Specification revision | `design.quote.request` → immutable public Quote projection → `design.generation.confirm` with Quote ID | Renderer 只展示 output summary、warnings、expiry、Token Points；Provider Prompt/model/route/storage/internal billing 不下发或编辑 |
+| Design Quote and confirmation | 当前 exact Specification revision，或同一 accepted chat Run 中服务端识别出的显式完成意图 | `design.quote.request` → immutable public Quote projection → `design.generation.confirm` with Quote ID | 服务端可在同一 chat operation 下先发送 committed chat Direction projection，再发送 offered Quote projection；Store 依次收敛两者，Renderer 不发第二个 mutation。Renderer 只展示 output summary、warnings、expiry、Token Points；Provider Prompt/model/route/storage/internal billing 不下发或编辑，且只有用户显式确认 Quote ID 才授权创建 Task |
 | Design Task and Asset sync | Direction event stream / Workspace resource events / explicit refresh | Renderer Task/Asset projections | Task/Asset events独立于 Living Form；transport order 和 progress 不改写 Specification，也不授权新生成操作 |
 | 设计项目删除 | Canvas 侧栏精确项目名确认 | Renderer → Main Host API → Works Square Workspace DELETE | 删除成功后清理当前 Workspace/Direction/resources 并选择最近更新的剩余项目；结算与软删除语义由服务端负责 |
 | 历史 Prompt Museum URL | `/image-prompts/*` | App replace-redirect → `/image-canvas` | 当前 Canvas 无“获取灵感”入口，App 不挂载或 lazy-load Museum 页面；保留的 Main API/auth/media 与 shared DTO 是 dormant 兼容/安全基础设施 |