Reorder tabs with Cmd+Shift+Left/Right

Focus history navigation with Cmd+; — jump back to previously viewed tab or pane (stack of 50 entries)

Tab activity indicator — purple dot on background tabs with unseen PTY output

Window close button (red X) now shows quit confirmation modal, matching Cmd+Q behavior

Tab bar artifacts when reordering tabs — full clear before redraw

Tabs losing displayed name after reorder — stable default title assigned at creation

Initial tab now seeded into focus history on startup