v0.2.0

Adds macOS browser-tab defaults and a recorded demo.

• macOS Web now defaults to ⌘⌥↑ / ⌘⌥↓ (plain Option chords are reserved in browsers)
• Windows Web stays unbound (Ctrl+Alt+Arrow is claimed by some display drivers)
• README includes a 10s demo recorded in a browser tab with synthetic sessions

v0.1.0

• sessionNav.previous / sessionNav.next commands
• Defaults: ⌥↑/⌥↓ (macOS desktop), Alt+↑/↓ (Windows desktop); unbound in browser tabs
• Follows the sidebar's visible order with a most-recent fallback, wraps, skips archived and subagent sessions
• Editable in the ⌘/ shortcut reference