fix(11-05): WR-03 gate helper text on active preset set only

- helper text condition now uses (allDay ? ALLDAY_REMINDER_PRESETS : TIMED_REMINDER_PRESETS)
- previously checked !TIMED && !ALLDAY: a timed event with 10080 (in ALLDAY set) was
  incorrectly treated as 'in presets' and suppressed the helper text
- synthetic option gating for each allDay/timed branch was already correct

apps/pwa/src/components/EventForm.tsx

@@ -1029,11 +1029,14 @@ export function EventForm() {
             )}
           </select>
           {/* Helper text: shown in edit mode when value is __custom__ or synthetic off-list (D-07) */}
+          {/* WR-03: gate on the ACTIVE preset set only — not both — so a timed event with a
+              value that happens to be in the allDay set still shows the off-list helper text */}
           {eventFormMode === 'edit' &&
             (reminderValue === '__custom__' ||
               (reminderValue !== '__none__' &&
-                !TIMED_REMINDER_PRESETS.has(parseInt(reminderValue, 10)) &&
-                !ALLDAY_REMINDER_PRESETS.has(parseInt(reminderValue, 10)) &&
+                !(allDay ? ALLDAY_REMINDER_PRESETS : TIMED_REMINDER_PRESETS).has(
+                  parseInt(reminderValue, 10),
+                ) &&
                 Number.isFinite(parseInt(reminderValue, 10)))) && (
               <div
                 style={{