fix(preview): add code wrap toggle (#1142)

feat(image): 图片预览支持多图翻页 (#1126)

* feat(image): 图片预览支持多图上下翻页

输入框和消息气泡的多图预览均支持左右翻页（‹ › 按钮 + 方向键，
首尾循环，顶部当前/总数角标），覆盖 Chat 和 Agent 两种模式。

- ImageLightbox 扩展 images/index/onIndexChange 能力
- 输入框：ChatInput / AttachmentPreviewItem / InlineEditForm / AgentView 收集图片列表共享 lightbox
- 消息气泡：message.tsx / SDKMessageRenderer.tsx 将 lightbox 状态上提到父组件，缩略图已加载的 src 复用于翻页，不触发额外 IO

Co-Authored-By: Claude <noreply@anthropic.com>

* perf(image): extract imageSiblings to useMemo to avoid re-creation on every render

Co-Authored-By: Claude <noreply@anthropic.com>

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Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: ErlichLiu <erlichgutu@gmail.com>

fix agent history scrolling (#1109)

fix(agent): preserve queued quote selections (#1104)

fix(input): preserve plain text copy markdown (#1092)

fix: Sidebar bounce when Session finish

fix: remove extra closing brace in AgentView.tsx causing build failure

Remove MCP test gate (#1049)

Default code preview to unified diff (#1044)

fix(agent): hide Claude subprocess window on Windows