Merge origin/master into codex/figma-context-injection-row

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kingwl
2026-07-30 17:35:04 +08:00
17 changed files with 135 additions and 57 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/bug-fix/2026-07-29-web-details-session-lifecycle.md
2026-07-29-web-details-session-lifecycle.md: d9e0255768f165bed0631b9324e971b57ec7dcae
2026-07-29-web-details-session-lifecycle.zh.md: 09452ba80ff240ddca76df239b40ea661566f8e2
2026-07-29-web-details-session-lifecycle.md: cc1501440d50cb560291e416a0f2b0292e08e1c8
2026-07-29-web-details-session-lifecycle.zh.md: 1102530f288359ebc5fb04a36c2b813da41e1318

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@@ -10,9 +10,9 @@ The details entry is Session-scoped, but its preferred grid width is root-scoped
## Decision
`AppFrame` reads the current Session id and its `blank` summary flag from the authoritative Session projection. It records the last non-blank selected id only when that Session can own details, so hero and other unselected states neither trigger closure nor replace the last Session owner; their rendered details track derives as zero without changing the stored preference. The first Session keeps the default details width; returning to the same Session restores its current width; selecting a different Session closes the root-scoped details preference through the layout store before paint. The per-Session chat selection remains owned by the session-scoped store described by the [slot system standard](../architecture/2026-07-22-slot-type-chain-implementation.md).
`AppFrame` reads the current Session id and its `blank` summary flag from the authoritative Session projection. It records the last non-blank selected id only when that Session can own details, so hero and other unselected states neither trigger closure nor replace the last Session owner; their rendered details track derives as zero without changing the stored preference. The first Session preserves the layout store's initial preference, whose [visibility default is now closed](2026-07-30-web-details-default-closed.md); returning to the same Session restores its current width, and selecting a different Session closes the root-scoped details preference through the layout store before paint. The per-Session chat selection remains owned by the session-scoped store described by the [slot system standard](../architecture/2026-07-22-slot-type-chain-implementation.md).
The layout store is transient and starts details at its default width. It neither reads nor writes `localStorage`, so reload resets both panel widths and needs no Session-baseline exception. Manual close and reopen inside one unchanged Session retain their existing behavior. The lifecycle effect changes neither the [Workspace-owned New Session flow](../feature/2026-07-25-workspace-ui-product-flow.md), composer drafts, Session navigation, nor concession-chain resizing.
The layout store is transient and starts details closed. It neither reads nor writes `localStorage`, so reload restores the sidebar default and details closed and needs no Session-baseline exception. Manual close and reopen inside one unchanged Session retain their existing behavior. The lifecycle effect changes neither the [Workspace-owned New Session flow](../feature/2026-07-25-workspace-ui-product-flow.md), composer drafts, Session navigation, nor concession-chain resizing.
## Alternatives considered
@@ -26,4 +26,4 @@ The layout store is transient and starts details at its default width. It neithe
## Consequences
Details is open by default, including when the first Session materializes. Switching to a different Session forgets the dragged details width because close writes zero and reopen uses the contract default. Unselected states derive a zero rendered track while leaving the preferred geometry unchanged; returning to the same Session through one of those states restores its width. Reload forgets sidebar and details geometry. The layout behavior test covers initial defaults, first materialization, direct and hero-mediated Session switches, same-Session return, and the absence of layout storage; the keyless browser e2e drives the same owner transitions through the shipped composition while checking the full grid track and browser errors.
Details starts closed, including when the first Session materializes. An explicit open action uses the contract default width. Switching to a different Session forgets a dragged details width because close writes zero and reopen uses that default. Unselected states derive a zero rendered track while leaving the preferred geometry unchanged; returning to the same Session through one of those states restores its width. Reload forgets sidebar geometry and restores details closed. The layout behavior test covers initial defaults, first materialization, direct and hero-mediated Session switches, same-Session return, and the absence of layout storage; the keyless browser e2e drives the same owner transitions through the shipped composition while checking the full grid track and browser errors.

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## 决策
`AppFrame` 从权威会话投影读取当前会话 id 及其摘要中的 `blank` 标志。它只在该会话能够拥有详情时记录最后一个选中的非 blank 会话 id因此 hero 和其他未选中状态既不会触发关闭,也不会替换最后一个会话 owner这些状态下详情栏轨道的渲染宽度派生为零但存储的首选宽度不变。首个会话保留详情栏的默认宽度;返回同一会话时恢复其当前宽度;选择不同会话时,系统会先通过布局 store 关闭根作用域存储的详情栏首选宽度,再进行绘制。逐会话的聊天选中项继续由 [slot 体系标准](../architecture/2026-07-22-slot-type-chain-implementation.md)所述的会话作用域 store 拥有。
`AppFrame` 从权威会话投影读取当前会话 id 及其摘要中的 `blank` 标志。它只在该会话能够拥有详情时记录最后一个选中的非 blank 会话 id因此 hero 和其他未选中状态既不会触发关闭,也不会替换最后一个会话 owner这些状态下详情栏轨道的渲染宽度派生为零但存储的首选宽度不变。首个会话保留布局 store 的初始首选值,该值的[可见性默认设置现为关闭](2026-07-30-web-details-default-closed.md);返回同一会话时恢复其当前宽度;选择不同会话时,系统会先通过布局 store 关闭根作用域存储的详情栏首选宽度,再进行绘制。逐会话的聊天选中项继续由 [slot 体系标准](../architecture/2026-07-22-slot-type-chain-implementation.md)所述的会话作用域 store 拥有。
布局 store 是瞬时状态,详情栏以默认宽度启动。它既不读取也不写入 `localStorage`,因此重新加载会重置两个面板的宽度,无需会话基线例外。在同一个未变化的会话内手动关闭和重新打开详情栏,仍保持原有行为。该生命周期 effect 不改变 [Workspace 拥有的 New Session 动线](../feature/2026-07-25-workspace-ui-product-flow.md)、composer 草稿、会话导航或让步链缩放。
布局 store 是瞬时状态,详情栏在启动时保持关闭。它既不读取也不写入 `localStorage`,因此重新加载会恢复侧边栏默认值,并使详情栏保持关闭,无需会话基线例外。在同一个未变化的会话内手动关闭和重新打开详情栏,仍保持原有行为。该生命周期 effect 不改变 [Workspace 拥有的 New Session 动线](../feature/2026-07-25-workspace-ui-product-flow.md)、composer 草稿、会话导航或让步链缩放。
## 考虑过的替代方案
@@ -26,4 +26,4 @@ Status: implemented
## 后果
详情栏默认打开,首次会话物化时亦然。切换到不同会话会忘记拖动后的详情宽度,因为关闭操作会写入零值,重新打开时则使用契约默认值。未选中状态会将轨道的渲染宽度派生为零,同时保持首选几何信息不变;经由这些状态返回同一会话时,会恢复其宽度。重新加载会忘记侧边栏与详情栏的几何信息。布局行为测试覆盖初始默认值、首次物化、直接及经 hero 中转的会话切换、返回同一会话,以及不存在布局存储的情况;无密钥浏览器 e2e 则通过已交付的组合驱动相同的 owner 过渡,同时检查完整网格轨道和浏览器错误。
详情栏在启动时保持关闭,首次会话物化时亦然。显式打开操作会使用契约默认宽度。切换到不同会话会忘记拖动后的详情宽度,因为关闭操作会写入零值,重新打开时则使用默认值。未选中状态会将轨道的渲染宽度派生为零,同时保持首选几何信息不变;经由这些状态返回同一会话时,会恢复其宽度。重新加载会忘记侧边栏几何信息,并使详情栏恢复关闭状态。布局行为测试覆盖初始默认值、首次物化、直接及经 hero 中转的会话切换、返回同一会话,以及不存在布局存储的情况;无密钥浏览器 e2e 则通过已交付的组合驱动相同的 owner 过渡,同时检查完整网格轨道和浏览器错误。

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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/bug-fix/2026-07-30-web-details-default-closed.md
2026-07-30-web-details-default-closed.md: 658b6fc2c18dc67d8759bec78997f32dcba27914
2026-07-30-web-details-default-closed.zh.md: 5a1d0e4713e47ce3bc0cc68fa4c4f5f8c94c945f

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# Agent Note: Web details default closed
Status: implemented
English | [中文](2026-07-30-web-details-default-closed.zh.md)
## Problem
The transient layout store initialized details to its 360px contract width. The first connected Session and every full reload therefore reserved a right column before the user selected any detail content. Chat tool rows deliberately remain inline and do not open details, while Trajectory rows open the panel when an event is selected, so an open layout default did not represent an active detail selection.
## Decision
The layout store initializes details to zero while retaining the existing 360px contract default for `openDetails()`. `AppFrame` keeps the details slot mounted at zero width, so an explicit entry point such as Trajectory event selection can open the panel without remounting its subtree. The [Session ownership lifecycle](2026-07-29-web-details-session-lifecycle.md) remains authoritative: unselected surfaces derive zero width without taking ownership, returning to the same Session preserves an explicitly opened width, and selecting a different Session closes it.
Panel geometry remains transient. No browser storage key is introduced, and reload restores the sidebar default while details returns to zero. Component tests pin the store default, mounted zero-width slot, drag and concession behavior after explicit opening, and Session ownership transitions. The keyless shipped-composition regression pins the closed first Session, reload, new-session surface, and subsequent Session selections.
## Alternatives considered
**Persist the last open or closed preference.** Rejected because reload should have a deterministic closed baseline, and persisting geometry would reintroduce stale viewing state across browser sessions.
**Keep details open until Chat receives a replacement selection gesture.** Rejected because empty space is not useful detail content. Chat's inline tool-row interaction and any future detail-selection gesture are separate product decisions.
**Remove the details column and layout service.** Rejected because Trajectory already opens event details through this seam, and keeping the mounted slot preserves that working interaction.
## Consequences
New, restored, and reloaded Sessions use the full center area until an explicit details action opens the right column. Trajectory event selection can still open details at 360px and its close control returns the track to zero; Chat tool rows remain geometry-inert. Switching to another Session closes an opened panel, and no panel state survives reload.

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# Agent Note: Web 详情栏默认关闭
Status: implemented
[English](2026-07-30-web-details-default-closed.md) | 中文
## 问题
瞬时布局 store 原本将详情栏初始化为 360px 的契约宽度。因此首个已连接会话以及每次完整重新加载都会在用户选择任何详情内容之前预留右侧栏。Chat 工具行有意保持内联不会打开详情栏Trajectory 行则会在选中事件时打开详情栏。因此,布局默认打开并不表示存在有效的详情选中项。
## 决策
布局 store 将详情栏初始化为零,同时保留 `openDetails()` 现有的 360px 契约默认宽度。`AppFrame` 仍以零宽度挂载详情 slot因此 Trajectory 事件选择等显式入口可以打开详情栏,而无需重新挂载其子树。[会话所有权生命周期](2026-07-29-web-details-session-lifecycle.md)仍是权威契约:未选中表面会派生零宽度而不取得所有权;返回同一会话时会保留显式打开后的宽度;选择不同会话时则会关闭详情栏。
面板几何信息仍是瞬时状态。系统不新增浏览器存储键;重新加载会恢复侧边栏默认值,并使详情栏回到零宽度。组件测试固定验证 store 默认值、保持挂载的零宽度 slot、显式打开后的拖动与让步行为以及会话所有权过渡。无密钥的已交付组合回归测试固定验证首个会话保持关闭、重新加载、New Session 表面和后续会话选择。
## 考虑过的替代方案
**持久化最后一次打开或关闭的首选状态。** 之所以否决:重新加载必须具有确定的关闭基线,而持久化几何信息会在浏览器会话之间重新引入陈旧的查看状态。
**在 Chat 获得替代性的选择手势前保持详情栏打开。** 之所以否决空白区域不是有用的详情内容。Chat 的内联工具行交互与未来可能增加的详情选择手势属于彼此独立的产品决策。
**移除详情栏和布局服务。** 之所以否决Trajectory 已经通过该服务边界打开事件详情;继续挂载该 slot 可以保留这一正常工作的交互。
## 后果
新建、恢复和重新加载的会话会使用完整的中央区域直至显式详情操作打开右侧栏。Trajectory 事件选择仍可将详情栏打开至 360px其关闭控件会使轨道回到零Chat 工具行仍不改变几何信息。切换到其他会话会关闭已打开的详情栏,并且任何面板状态都不会在重新加载后保留。