Show read-only server reading hours in settings

reading-access.js

@@ -44,6 +44,11 @@ function scheduled(schedule, date = new Date()) {
     schedule.days[(day + 6) % 7].some(({ start, end }) => end < start && now < end);
 }
 
+function publicSchedule(schedule) {
+  return { enabled: !!schedule, timezone: schedule?.timezone || null,
+    days: schedule ? schedule.days.map(ranges => ranges.map(({ label }) => [...label])) : [] };
+}
+
 function normalizeAnswer(value) {
   return String(value || '').normalize('NFKD').replace(/[\u0300-\u036f]/g, '').toLowerCase()
     .replace(/[^a-z0-9]+/g, ' ').trim().replace(/\s+/g, ' ');
@@ -136,4 +141,4 @@ function createReadingAccess({ schedule, bank = {}, unlockMinutes = 60, grants,
   };
 }
 
-module.exports = { parseSchedule, scheduled, normalizeAnswer, answerMatches, loadQuestionBank, createReadingAccess };
+module.exports = { parseSchedule, scheduled, publicSchedule, normalizeAnswer, answerMatches, loadQuestionBank, createReadingAccess };