[AnthonyRonning]

Summary

On macOS the sidebar's Maple logo sits under the traffic lights, and the sidebar toggle, search and new-task buttons sit beside them. Windows and Linux have no traffic lights in that corner, so the top-left was an empty gap, with the logo pushed down below it.

On Windows and Linux:

• The wordmark (sidebar expanded) and the M (sidebar collapsed) move up into that corner, centered on the header's line.
• The toolbar follows the logo, one button gap after it, like one more button in the row: after the M when collapsed, after the wordmark when expanded. It slides between the two places with the sidebar animation.
• The task list moves up by the space the old logo row used.

macOS is unchanged: the toolbar stays fixed beside the traffic lights and the logo stays under them. The geometry is the same as before.

Known trade-off, left as is for now: off macOS the toggle moves when pressed. After a collapse, the pointer sits over New task, so a quick second click starts a task instead of reopening the sidebar. We'll watch real use before changing it.

Screenshots

These are macOS builds with the transparent title bar turned off locally, so the system's opaque bar stands in for the Windows or Linux one. The app content below it is the Windows/Linux layout.

Expanded sidebar:

Collapsed sidebar:

Validation

• just ci-lint passes: fmt, the packaging script tests, and clippy with -D warnings for every feature set.
• Workspace tests on macOS: all pass except agent::tests::shell_tests::quiet_shell_reports_effective_folder_deadline_and_idle_time_until_stop. It fails on a /tmp vs /private/tmp path, in a file this change does not touch. The app suite passed 1,155 tests.
• The header tests were updated to hold on both layouts: on macOS the toggle stays put and the logo sits under the traffic lights; elsewhere the logo shares the toggle's line, one button gap before it. With the flag forced to the Windows/Linux value, all 343 ui::chat tests pass locally. Linux CI runs them with the real flag.
• Checked in the real app, both layouts, expanded and collapsed (screenshots above).

🤖 Generated with Claude Code

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