- Add Cmd+Shift+I keyboard shortcut in useAppKeyboard for toggling the properties/inspector panel - Change default inspectorCollapsed to true (panel closed on fresh install) - Add shortcut hint "⌘⇧I" to Properties button tooltips in breadcrumb bar and inspector header - Show shortcut in command palette for "Toggle Properties Panel" Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>