Add NFC chore submission feature and enhance family settings

- Introduced NFC support for chore submissions, allowing specific person credit after Head of Household approval.
- Updated family settings to include NFC base URL, scan cooldown, and confirmation page options.
- Enhanced chore management with options for anyone to complete chores and NFC link generation.
- Improved API endpoints for handling NFC tokens and chore submissions.
- Updated readme to reflect new NFC features and settings.

api/people_create.php

@@ -6,7 +6,7 @@ if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
     sendJson(['success' => false, 'error' => 'Method not allowed'], 405);
 }
 
-$people = normalizePeopleList(readJsonFile('people.json'));
+$people = migrateAllPeople(normalizePeopleList(readJsonFile('people.json')));
 if (count($people) === 0) {
     sendJson(['success' => false, 'error' => 'Use first-time setup to create the initial Head of Household'], 400);
 }
@@ -58,6 +58,8 @@ $newPerson = [
     'birthday' => $birthday,
     'favoriteColor' => $favoriteColor,
     'currency_balance' => 0,
+    'nfc_submit_token_hash' => '',
+    'nfc_submit_token_updated_at' => '',
     'created_at' => gmdate('c'),
 ];