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/chore_submit.php

@@ -7,7 +7,7 @@ if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
     sendJson(['success' => false, 'error' => 'Method not allowed'], 405);
 }
 
-$people = normalizePeopleList(readJsonFile('people.json'));
+$people = migrateAllPeople(normalizePeopleList(readJsonFile('people.json')));
 $actor = requireActivePerson($people);
 $actorId = (string) ($actor['id'] ?? '');
 if ($actorId === '') {
@@ -34,7 +34,7 @@ if (($row['status'] ?? '') !== 'active') {
 }
 
 $assignees = $row['assignee_ids'] ?? [];
-if (!is_array($assignees) || !in_array($actorId, $assignees, true)) {
+if (empty($row['anyone_can_complete']) && (!is_array($assignees) || !in_array($actorId, $assignees, true))) {
     sendJson(['success' => false, 'error' => 'Only assignees can mark this chore complete'], 403);
 }