completeTask returns an undo closure that restores status + sort slot and
trashes the occurrence a repeat spawned. One global snackbar (5s,
replace-on-new) mounted in the root layout; every checkbox and Clarify's
save-as-done go through completeWithUndo. bun tests for the store.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YE5FmDZmFnWxH6RXCZLcjj
Screens render synchronously from an AsyncStorage-backed store; every
mutation applies locally and drains to the API in the background
(last-write-wins, client-generated UUIDs). Sydney round-trips are off the
interaction path and the app works fully offline.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
