fix(ui): hide redundant chat disclosure chevrons

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.

[sunheyi6]

Summary

• hide the redundant trailing chevron on chat processing, reasoning, and tool disclosures
• preserve full-row disclosure interaction, keyboard behavior, and aria-expanded semantics
• scope the visual override to chat disclosures so other collapsible surfaces are unchanged

Why

Astryx Collapsible always appends a chevron to the far edge of its full-width trigger. In a conversation with many processing and tool rows, those repeated chevrons form a detached visual rail beside the actual scrollbar even though each row already has a semantic activity icon and a full-row click target.

Validation

• npm run test --workspace=@maka/ui (296 tests passed)
• npm run build:workspace-deps --workspace=@maka/desktop
• npm run build:renderer --workspace=@maka/desktop
• git diff --check

中文说明

改动内容

• 隐藏聊天区域中“处理过程”“深度思考”和工具记录右侧重复的小箭头。
• 保留整行点击展开/收起、键盘操作以及 aria-expanded 无障碍语义。
• 样式仅作用于聊天折叠项，不影响设置页等其他折叠组件。

原因

Astryx 折叠组件会在全宽触发区域末尾自动添加箭头。聊天记录中连续出现多个折叠项时，这些箭头会在正文最右侧形成一列孤立的视觉轨道，并与真正的滚动条争抢注意力；而每行已经具有明确的业务图标和整行点击区域，因此该箭头属于冗余装饰。

验证

• UI 测试全部通过（296/296）。
• 工作区依赖构建通过。
• 桌面端 renderer 生产构建通过。
• git diff --check 通过。

[sunheyi6]

Closing as superseded: upstream rewrote the chat surfaces onto Astryx timeline components (#1768 / #1795); ProcessingBlock/DeepThinking no longer use AstryxCollapsible, so the redundant disclosure chevrons this PR targeted are gone.