Chores, Family page, genre search, child accounts, wider Search and Notifications center

- Chores tab with repeats, points and a week/month board
- Family page: calendar, chores, shopping, notes, chat and tasks on one start page
- Genre search in the Store, Free Books and LibriVox
- Child accounts: safe content, daily limit and bedtime, ask a parent
- Search now covers notes, chat, contacts, chores, recipes and your books
- Notifications center: bell with a per-person list of chat, reminders and announcements
- Roadmap, README and tests updated

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/boot.js

@@ -18,7 +18,7 @@
   setInterval(checkForUpdate, 10 * 60e3);
   await loadMe();
   await loadSettings();
-  sgStart(); if (typeof chStart === 'function') chStart();
+  sgStart(); if (typeof chStart === 'function') chStart(); if (typeof kidStart === 'function') kidStart();
   addEventListener('hashchange', route);
   restorePlayer();
   route();