Calendar: fix Day/3-Day/Week/List task rendering; lighter checkbox; confirm future completes

Calendar timeline views only populated in Month. Fixes:
- Day/3-Day time grid dropped untimed (midnight) tasks and ignored
  recurrence. Now uses occurrences(on:) + hasTime, and adds an all-day
  band for untimed tasks, all-day events, and the day's workout.
- Week showed abstract color bars; now lists real task/event titles
  (up to 4/day + "N more") via a shared cvAgendaItems helper.
- List view and the task-list toggle now use occurrences(on:) so
  recurring tasks appear.

TodayView:
- Slimmer task checkbox (18pt open ring vs 22pt filled donut).
- Confirm before completing a future-dated task (Next 7 Days / Later)
  to prevent accidental completion; today/overdue still toggle instantly.

Bump build to 2.0 (9). Add App Store support-site one-pager.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

project.yml

@@ -10,7 +10,7 @@ settings:
   base:
     DEVELOPMENT_TEAM: K8BLMMR883
     MARKETING_VERSION: "2.0"
-    CURRENT_PROJECT_VERSION: "5"
+    CURRENT_PROJECT_VERSION: "9"
 
 schemes:
   KisaniCal: