Modal component: portal, ESC to close, Tab focus-trap, focus-on-open
(prefers [data-modal-autofocus]), focus restore, overlay click, scroll lock.
ConfirmProvider exposes useConfirm(): async confirm({...}) as a drop-in for
window.confirm; Enter confirms, ESC cancels. Task/account deletes now use it.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MMHQTtnQtQqL8muAXHr9kd
vasyansk
29ccbc22e9
