- Sandbox/Docker: tolerate Docker daemon unavailability when sandbox mode is off, so doctor and preflight checks no longer fail on installs that do not run the Docker daemon. Fixes #73671. Thanks @kaseonedge.

- Control UI/mobile: persist mobile chat settings through Lit-managed state and route mobile navigation through the same view-state path so chat panel toggles survive transitions on small viewports. Thanks @BunsDev.

- Control UI/exports: align sidebar trigger affordances across the resizable divider, mobile layout, and exported-HTML transcript template so the sidebar toggle and exported transcript sidebar render with consistent hit areas and styling. Thanks @BunsDev.

- Control UI/chat: disable the page refresh affordance while a chat run is active so accidental refreshes do not abort an in-flight reply. Thanks @BunsDev.

- Media: include redacted per-attempt resize failures and resolved model input capabilities in vision-pipeline errors so ARM64 image failures are diagnosable without closing the remaining routing investigation. Refs #74552. Thanks @1yihui.

- Control UI/i18n: route zh-CN agent, debug, channel-refresh, and exec-approval copy through the locale source while preserving the English `Cron Jobs` agent tab label and the security-audit command styling. Carries forward #39692 repair context. Thanks @hepeng154833488 and @vincentkoc.

- Auto-reply: honor explicit `silentReply.direct: "allow"` for clean empty or reasoning-only direct chat turns while keeping the default direct-chat empty-response guard conservative. Fixes #74409. Thanks @jesuskannolis.