Merge remote-tracking branch 'origin/master' into worktree/web-multimodal-image-input

# Conflicts:
#	.gitignore
#	apps/cli/package.json
#	apps/cli/src/web.ts
#	docs/architecture.i18n.yaml
#	docs/config-catalog.md
#	docs/module-graph.md
#	packages/client/connection/README.md
#	packages/client/connection/src/client/api.ts
#	packages/client/connection/src/client/fixture.ts
#	packages/client/runtime/README.md
#	packages/client/runtime/src/client/sessions/service.ts
#	packages/client/runtime/src/client/sessions/session.ts
#	packages/client/runtime/src/client/workspaces/service.ts
#	packages/client/ui-conversation/src/client/apply.ts
#	packages/client/ui-conversation/src/client/chat/MessageItem.tsx
#	packages/client/ui-conversation/src/client/contract/slots.ts
#	packages/client/ui-conversation/src/client/index.ts
#	packages/client/ui-conversation/src/client/service.ts
#	packages/client/ui-conversation/src/client/skeleton/ConversationRoot.tsx
#	packages/client/ui-conversation/src/client/skeleton/EmptyHero.tsx
#	packages/client/ui-conversation/src/client/skeleton/EmptyState.tsx
#	packages/client/ui-conversation/src/client/skeleton/InputBar.module.css
#	packages/client/ui-conversation/src/client/skeleton/InputBar.tsx
#	packages/client/ui-conversation/tests/apply-inject.spec.tsx
#	packages/client/ui-conversation/tests/input-bar.spec.tsx
#	packages/client/ui-conversation/tests/skeleton.spec.tsx
#	packages/client/ui-trajectory/tests/views.spec.tsx
#	packages/host/apiproxy/src/api-proxy.ts
#	pnpm-lock.yaml

packages/attachment/README.i18n.yaml

@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write packages/attachment/README.md
+README.md: 61b4e5c602f475f85bbe859b8483e30b518e06c8
+README.zh.md: b4a80917e166a3b0836e6e9c79d536d9dd8e1a41

packages/attachment/README.md

@@ -1,5 +1,7 @@
 # attachment/ - durable attachment capability family
 
+English | [中文](README.zh.md)
+
 The durable binary attachment seam and its local filesystem implementation. Both are product packages.
 
 | Package | Role | ctx key |

packages/attachment/README.zh.md

@@ -0,0 +1,12 @@
+# attachment/：持久附件能力族
+
+[English](README.md) | 中文
+
+持久二进制附件服务边界及其本地文件系统实现。两者均为产品包（package）。
+
+| 包 | 角色 | ctx 键 |
+|---|---|---|
+| `attachment/` | 不可变附件引用、图片限制和存储服务 | `ctx.attachments` |
+| `attachment-local/` | `DSH_HOME` 下的私有内容寻址存储 | （注册至 `ctx.attachments`） |
+
+未发送的浏览器草稿刻意位于这项能力之外。只有用户提交提示词，或提供方适配器提交结构化模型输出时，字节才进入持久存储。

packages/attachment/attachment-local/README.i18n.yaml

@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write packages/attachment/attachment-local/README.md
+README.md: 38331df827d64c8370d0208f6898971e46010afa
+README.zh.md: bc6a471465c7bffc136e8ec2233e200a292f2d1a

packages/attachment/attachment-local/README.md

@@ -1,5 +1,7 @@
 # @deepseek-ai/dsh-attachment-local
 
+English | [中文](README.zh.md)
+
 The private local implementation of [`@deepseek-ai/dsh-attachment`](../attachment). Objects land at `<DSH_HOME>/attachments/v1/objects/<sha256-prefix>/<sha256>` and are addressed by an opaque `sha256:` id. Writes use a private staging directory, owner-only files, a synced temporary file, an atomic exclusive hard-link publish, and a directory sync on the publication directories (POSIX; Windows relies on filesystem metadata journaling) so the reported reference survives a crash; reads re-check the digest, media signature, dimensions, and logged metadata. Byte and pixel limits are write-time admission policy, so a later policy reduction does not make already-admitted history unreadable.
 
 `DSH_HOME` resolves through the shared path policy: explicit config, `$DSH_HOME`, then `~/.dsh`. Session logs contain only the reference and verified metadata, never this host path.

packages/attachment/attachment-local/README.zh.md

@@ -0,0 +1,21 @@
+# @deepseek-ai/dsh-attachment-local
+
+[English](README.md) | 中文
+
+这是 [`@deepseek-ai/dsh-attachment`](../attachment) 的私有本地实现。对象存放在 `<DSH_HOME>/attachments/v1/objects/<sha256-prefix>/<sha256>`，并通过不透明的 `sha256:` 标识符寻址。写入过程使用私有暂存目录、仅所有者可访问的文件、经过同步的临时文件、原子且排他的硬链接发布，并对发布目录执行同步（适用于 POSIX；Windows 依赖文件系统元数据日志），确保已报告的引用能够在崩溃后继续存在；读取过程会重新校验摘要、媒体签名、尺寸和已记录的元数据。字节和像素限制属于写入时的准入策略，因此后续收紧限制不会导致已经接纳的历史记录变得不可读。
+
+`DSH_HOME` 按共享路径策略解析：显式配置、`$DSH_HOME`，最后是 `~/.dsh`。会话日志只包含引用和经过校验的元数据，绝不包含这个宿主路径。
+
+## 模型体验
+
+该包通过重启和 fork 后对历史用户图片与结构化模型图片输出的持久回放间接影响模型。
+
+#### KV 缓存影响
+
+除发起请求的适配器所持有的图片块外，不产生其他影响。
+
+## 已知限制与待完成工作
+
+- 对象会无限期保留；基于引用的垃圾回收尚未实现。
+- 本地后端假定宿主与提供方适配器共享同一个文件系统服务。
+- 动态 GIF 的元数据根据逻辑屏幕进行校验；逐帧解码策略由提供方持有。

packages/attachment/attachment/README.i18n.yaml

@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write packages/attachment/attachment/README.md
+README.md: b8cee33b21caf5851f5c571ee7385fbd1b81dc97
+README.zh.md: 53107bd0f57b73043073295a9698df927e457365

packages/attachment/attachment/README.md

@@ -1,5 +1,7 @@
 # @deepseek-ai/dsh-attachment
 
+English | [中文](README.zh.md)
+
 The durable attachment seam. `ctx.attachments` validates and atomically commits immutable image bytes, then returns a serializable `ImageAttachmentRef`; consumers never persist browser paths, object URLs, provider URLs, or base64 in session events.
 
 Unsent composer images remain browser-owned temporary drafts. `saveImage` is called only at message submission or while committing structured provider output, before any model-visible session event is published. `validateImage` runs the same admission policy without persisting; batch writers validate every member first so one malformed member cannot strand earlier members as unreferenced objects (there is no garbage collection). `readImage` verifies the content-addressed object against its logged metadata.

packages/attachment/attachment/README.zh.md

@@ -0,0 +1,21 @@
+# @deepseek-ai/dsh-attachment
+
+[English](README.md) | 中文
+
+持久附件服务边界。`ctx.attachments` 校验并以原子方式提交不可变图片字节，随后返回可序列化的 `ImageAttachmentRef`；消费方绝不会在会话事件中持久保存浏览器路径、对象 URL、提供方 URL 或 base64。
+
+未发送的输入区图片仍是由浏览器持有的临时草稿。只有在提交消息或提交结构化提供方输出时，才会调用 `saveImage`，并且必须先于任何模型可见的会话事件发布。`validateImage` 运行相同的准入策略，但不执行持久化；批量写入方会先校验每个成员，避免某个格式错误的成员使较早的成员成为无引用对象（系统不提供垃圾回收）。`readImage` 根据已记录的元数据校验内容寻址对象。
+
+## 模型体验
+
+该包通过角色无关的核心 `ImageBlock`，以及解析其持久引用的提供方适配器，间接影响模型。
+
+#### KV 缓存影响
+
+添加图片会改变提供方请求，因此会使受影响的请求后缀失效。
+
+## 已知限制与待完成工作
+
+- 第一版仅接受 PNG、JPEG、WebP 和 GIF。
+- 保留策略与垃圾回收尚未实现，因为恢复和 fork 后的会话可能共享不可变对象。
+- 通用文件、音频、视频和持久的未发送草稿需要单独的生命周期与提供方契约。