feat: add enable/disable toggle for chore scheduling in ScheduleModal

- Introduced a toggle button to enable or disable chores in the scheduler.
- The toggle will be available in both types of schedulers.
- Added UI design proposal and considerations for mobile dimensions.
- Included E2E tests to ensure toggle state persistence and correct behavior in child view.

frontend/vue-app/src/common/models.ts

@@ -32,6 +32,7 @@ export interface ChoreSchedule {
   interval_has_deadline: boolean // false = "Anytime" (no deadline)
   interval_hour: number
   interval_minute: number
+  enabled?: boolean // false = schedule paused; chore won't appear for child
   created_at: number
   updated_at: number
 }

frontend/vue-app/src/common/scheduleUtils.ts

@@ -44,8 +44,10 @@ export function intervalHitsToday(
  * Returns true if the schedule applies today (localDate).
  * - 'days' mode: today's weekday is in day_configs
  * - 'interval' mode: intervalHitsToday
+ * - paused (enabled === false): always returns true (chore shows every day, like no schedule)
  */
 export function isScheduledToday(schedule: ChoreSchedule, localDate: Date): boolean {
+  if (schedule.enabled === false) return true // paused = show always, like an unscheduled chore
   if (schedule.mode === 'days') {
     const todayWeekday = getLocalWeekday(localDate)
     return schedule.day_configs.some((dc: DayConfig) => dc.day === todayWeekday)
@@ -56,6 +58,7 @@ export function isScheduledToday(schedule: ChoreSchedule, localDate: Date): bool
 
 /**
  * Returns the due time {hour, minute} for today, or null if:
+ * - the schedule is paused (enabled === false) → no deadline, acts like Anytime
  * - the day is not scheduled, OR
  * - the schedule has no deadline (interval_has_deadline === false → "Anytime")
  *
@@ -65,6 +68,7 @@ export function getDueTimeToday(
   schedule: ChoreSchedule,
   localDate: Date,
 ): { hour: number; minute: number } | null {
+  if (schedule.enabled === false) return null // paused = no deadline, no expiry
   if (schedule.mode === 'days') {
     // default_has_deadline === false means 'Anytime' — no expiry for scheduled days
     if (schedule.default_has_deadline === false) return null