- W3: Merge route-change and new-alert effects into single unified effect
- W6: Migration 018 extends due_lookup index with snoozed_until column
- S1: Extract useConfirmAction hook from TodoItem/ReminderItem
- S7: Update summary toast count on dismiss/snooze instead of dismissing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>