POST /api/clipboard with { text } broadcasts to all connected browsers
via SSE. Browser attempts navigator.clipboard.writeText, falling back
to a modal with manual copy button if blocked.
Enables remote clipboard workflows: CLI tools can push text to the
user's browser clipboard across the network.
- Active tab: bright green border with color-matched glow per session color
- Tab number badges (1-9) showing Alt+N shortcut hints
- Badges update on tab reorder and re-render
On Android tablets, pressing Shift+A produces "AA" because the input
event listener re-sends characters that xterm already processed via
its keydown handler. Track keydown timestamps and skip input events
that fire within 50ms of a handled keydown.
Only affects touch devices (listener gated by isTouchDevice()).
Add app icons, update manifest with icon entries, and add app-shell
caching to service worker for offline/instant startup.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>