Merge latest master into PR 555

# Conflicts:
#	.agents/notes/implemented/architecture/2026-07-25-web-input-machine-and-slash-pipeline.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-25-web-input-machine-and-slash-pipeline.md
#	.agents/notes/implemented/architecture/2026-07-25-web-input-machine-and-slash-pipeline.zh.md
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/src/client/chat/MessageItem.tsx
#	packages/client/ui-conversation/src/client/input/facade.ts
#	packages/client/ui-conversation/src/client/input/hub.ts
#	packages/client/ui-conversation/src/client/service.ts
#	packages/client/ui-conversation/tests/apply-inject.spec.tsx
#	packages/client/ui-conversation/tests/input-bar.spec.tsx
#	packages/client/ui-conversation/tests/input-matrix.spec.tsx
#	packages/client/ui-conversation/tests/input-scenarios.spec.tsx
#	packages/client/ui-conversation/tests/skeleton.spec.tsx
This commit is contained in:
creatixchu
2026-07-31 20:11:28 +08:00
28 changed files with 236 additions and 175 deletions

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# 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 .agents/notes/implemented/architecture/2026-07-25-web-input-machine-and-slash-pipeline.md
2026-07-25-web-input-machine-and-slash-pipeline.md: c42eeda7ab9936a37f6059b409748563e23da5fc
2026-07-25-web-input-machine-and-slash-pipeline.zh.md: fc0ea83a9095857c09aad991c263f421d6118adb
2026-07-25-web-input-machine-and-slash-pipeline.md: 3982850310ae59bf1b0b4d1552362ef70035aeb2
2026-07-25-web-input-machine-and-slash-pipeline.zh.md: aa6137309aadce9c12bfe28918c1dd2b9f7c7014

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@@ -72,7 +72,7 @@ A trigger/menu/pick pipeline with zero knowledge of "commands":
- Each materialized Session has exactly one `SessionInputShell` (the facade), created and torn down with the session scope; with no session, no input machine is built. `ConversationRoot` is itself the `session-maybe` resident shell, holding HeroShell, the Workspace picker, the composer stack, and the chain-fallback frame.
- The composer bar is one `session-maybe` slot entry rendered unconditionally: with no session the same InputBar renders inert (machine faces absent, `disabled` owner prop), and once `connectWorkspace` returns a blank session the same instance goes live — the textarea DOM survives the no-session → blank transition and every later phase flip; `ConversationRoot`, the Hero, and the layout skeleton hold throughout.
- ConversationRoot's Hero criterion is `sessionId === undefined || (composerPhase === 'blank' && (openState === 'open' || openState === 'loading'))`. The first submit enters engaging synchronously, and a failure keeps the composer and the error context rather than falling back to the blank Hero; the sidebar's blank bit flips false only after a prompt is successfully accepted.
- Sending unifies in the hub defaultSink: after an optimistic draft and submitted-image clear it goes only through `session.prompt {mode:'queue'|'steer'}`; a failure restores the submitted image identifiers and backfills text only when the live draft is still empty, so text or images added during flight are never overwritten. No Draft materialize or attach transaction exists.
- Sending unifies in the hub defaultSink: after an optimistic draft and submitted-image clear it goes only through `session.prompt` with `mode:'queue'` (the Web UI has no steer entry; host-wire `mode:'steer'` remains outside this machine); a failure restores the submitted image identifiers and backfills text only when the live draft is still empty, so text or images added during flight are never overwritten. No Draft materialize or attach transaction exists.
- When the blank Hero re-picks the Workspace, the shell calls `connectWorkspace`; if the target session differs, the non-empty draft and ordered image identifiers move from the current shell to the target shell before the new id is opened, and the old blank session survives but is no longer current.
- The Notifier's two-bit contract: `dirty` (snapshot freshness, clearable by an `ensureFresh` pull) and `notifyPending` (notification debt, cleared only by a flush) are mutually independent — a pull must not swallow a push, and object-layer push subscribers (watchTransaction) depend on this guarantee.

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@@ -72,7 +72,7 @@ occurrence 表与 chip 三投影:
- 每个实体 Session 只有一个 `SessionInputShell`(facade),随 session scope 创建和拆除;无 session 时不造 input machine。`ConversationRoot` 自身是 `session-maybe` 常驻外壳,持有 HeroShell、Workspace picker、composer stack 与 chain fallback 外框。
- composer bar 是一个无条件渲染的 `session-maybe` slot entry:无 session 时同一个 InputBar 以惰性态渲染(machine face 缺席、`disabled` owner prop),`connectWorkspace` 返回 blank session 后同一实例转为 live——textarea DOM 在无 session → blank 切换及其后每次 phase 翻转中都不重建;`ConversationRoot`、Hero 与布局骨架全程保持。
- ConversationRoot 的 Hero 判据是 `sessionId === undefined || (composerPhase === 'blank' && (openState === 'open' || openState === 'loading'))`。首次 submit 同步进入 engaging,失败也保留 composer 与错误上下文,不退回 blank Hero;sidebar 的 blank 位只在 prompt 成功受理后翻 false。
- 发送统一在 hub defaultSink:乐观清除 draft 和已提交图片后只走 `session.prompt {mode:'queue'|'steer'}`;失败时恢复已提交图片标识符,仅当 live draft 仍为空时才回填文本,因此不会覆盖飞行期间新增的文本或图片。不存在 Draft materialize 或 attach 事务。
- 发送统一在 hub defaultSink:乐观清除 draft 和已提交图片后只走 `session.prompt` 且固定 `mode:'queue'`(Web UI 无 steer 入口;host 线缆上的 `mode:'steer'` 不经此 machine);失败时恢复已提交图片标识符,仅当 live draft 仍为空时才回填文本,因此不会覆盖飞行期间新增的文本或图片。不存在 Draft materialize 或 attach 事务。
- blank Hero 改选 Workspace 时,外壳调用 `connectWorkspace`;目标 session 不同时把非空 draft 和有序图片标识符从当前 shell 搬到目标 shell,再 open 新 id,旧 blank session 留存但不再 current。
- Notifier 双位契约:`dirty`(快照新鲜度,`ensureFresh` 拉取可清)与 `notifyPending`(通知欠账,只有 flush 清)各自独立——拉取不得吞推送,对象层推订阅者(watchTransaction)依赖这一保证。

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# 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 .agents/notes/implemented/simplification/2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.md
2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.md: 6f397668106a6c74f327fc799327752c54824d8c
2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.zh.md: f127bd57006747465a1ece87406f5f97086b6a34

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# Agent Note: Web UI drops steer entry and interjection chrome
Status: implemented
English | [中文](2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.zh.md)
## Problem
Mid-turn steering is a host/agent-loop capability (`mode:'steer'`, durable `steering/message`). The Web product already locked the composer while a turn runs and never shipped a queue/steer menu, yet the client still threaded `'queue' | 'steer'` through the input machine, `conversation.send`, and locale keys, and rendered consumed steering as a badged 「插话」/「Interjection」 bubble. That left a half-built UI surface: an unused submit mode, a product label for a gesture users cannot perform, and e2e goldens that pinned chrome the product does not own.
## Decision
Keep host and runtime steering intact. Remove only the Web UI entry and chrome:
- `InputMachine` / `SessionInput` / `InputActions.submit` / hub `defaultSink` are queue-only; they always call `session.prompt(..., 'queue')`.
- `ConversationService.send(text)` drops its mode argument and always queues.
- `MessageItem`'s `steering` arm still folds durable `steering/message` content into a plain right-aligned bubble (no badge, no user IconActions) so external/host steers stay visible on replay.
- Delete `message.steering` locale strings and the unused badge CSS.
- The web steering e2e still POSTs `mode:'steer'` over `/api/session.prompt` and asserts durable + model-visible obedience; it no longer expects interjection chrome. Update [web input machine note](../architecture/2026-07-25-web-input-machine-and-slash-pipeline.md) fact lines to match.
## Alternatives considered
**Delete host steering entirely.** Out of scope; the user asked only for Web UI display and entry. Agent-loop drain, session events, and the wire mode remain load-bearing for ACP/TUI/automation.
**Hide `steering/message` from the transcript.** Would lie on replay when an external client steers; rejected in favor of a plain bubble.
**Keep the mode parameter but only ever pass `'queue'`.** Leaves dead API surface and tests that invent `'steer'` paths the composer cannot reach.
## Consequences
- Web users cannot steer from the composer or `ctx.conversation.send`; stop/cancel and Queue remain the only mid-turn controls.
- Host-wire and non-Web clients can still steer; the Web client shows those messages without labeling them as interjections.
- Reintroducing a dedicated steer UI would need a new product decision; do not revive the mode union or badge without one.
## Testing
- `packages/client/ui-conversation` unit/jsdom coverage: input machine enter/sink, ConversationService routing, MessageItem steering arm (no 「插话」), InputBar submit.
- `apps/web/tests/steering.e2e.ts` keyless replay plus updated `settled.expected.md` (steer text without badge).

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# Agent Note: Web UI 去掉 steer 入口与插话 chrome
Status: implemented
[English](2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.md) | 中文
## 问题
中途 steering 是 host/agent-loop 能力(`mode:'steer'`、持久 `steering/message`)。Web 产品已在 turn 运行中锁定 composer,且从未交付排队/steer 菜单,但客户端仍把 `'queue' | 'steer'` 穿进 input machine、`conversation.send` 与 locale 键,并把已消费的 steering 渲染成带「插话」/「Interjection」徽章的气泡。这留下半成品 UI:用不到的提交 mode、用户做不到的手势却有产品文案,以及把产品并不拥有的 chrome 钉死在 e2e golden 上。
## 决策
保留 host 与 runtime 的 steering。只去掉 Web UI 入口与 chrome:
- `InputMachine`/`SessionInput`/`InputActions.submit`/hub `defaultSink` 仅 queue;始终调用 `session.prompt(..., 'queue')`。
- `ConversationService.send(text)` 去掉 mode 参数,始终排队。
- `MessageItem` 的 `steering` 分支仍把持久 `steering/message` 内容折成右对齐普通气泡(无徽章、无用户 IconActions),以便外部/host steer 在回放时仍可见。
- 删除 `message.steering` locale 字符串与未使用的徽章 CSS。
- web steering e2e 仍通过 `/api/session.prompt` POST `mode:'steer'`,并断言持久化与模型可见服从;不再期望插话 chrome。同步更新 [web input machine note](../architecture/2026-07-25-web-input-machine-and-slash-pipeline.md) 中的事实行。
## 曾考虑的替代方案
**整段删除 host steering。** 超出范围;用户只要求清 Web UI 展示与入口。agent-loop 排空、session 事件与线缆 mode 对 ACP/TUI/自动化仍是承重能力。
**在 transcript 中隐藏 `steering/message`。** 外部客户端 steer 时回放会撒谎;改为普通气泡。
**保留 mode 参数但永远只传 `'queue'`。** 留下死 API 面与只会虚构 composer 到不了的 `'steer'` 路径的测试。
## 后果
- Web 用户无法从 composer 或 `ctx.conversation.send` steer;中途控制只剩停止/取消与 Queue。
- Host 线缆与非 Web 客户端仍可 steer;Web 客户端展示这些消息时不再标成插话。
- 若要重新引入专用 steer UI,需要新的产品决策;没有决策就不要复活 mode 联合类型或徽章。
## 测试
- `packages/client/ui-conversation` unit/jsdom 覆盖:input machine enter/sink、ConversationService 路由、MessageItem steering 分支(无「插话」)、InputBar submit。
- `apps/web/tests/steering.e2e.ts` 无密钥回放,以及更新后的 `settled.expected.md`(有 steer 正文、无徽章)。