Widgets: remove Event Countdown (dots) + Tasks Done Today (KC-17)

Drop the dot-grid EventCountdownWidget and TasksCompleteWidget from the
gallery: widget structs, their views, the todayTaskCompletion() helper
(only consumer), and bundle registrations. Shared event plumbing
(EventConfigIntent/Provider/Entry, CycleCountdownUnitIntent) stays for
the surviving Event Countdown (Bars); DotGrid stays for Day Progress.
Remaining widgets untouched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

KisaniCal/ISSUES.md

@@ -523,3 +523,30 @@ Files: `ExerciseModels.swift`, `NotificationManager.swift`, `ContentView.swift`,
    that day now shows the program labeled Compensation (and gets a reminder).
 3. Long-press the workout card in Today/Calendar → Done / Not Done / Compensate.
 4. Long-press an exercise card in Workout → Mark as Done / Not Done.
+
+---
+
+## KC-17 — Remove Event Countdown (dots) + Tasks Done Today widgets
+
+**Status:** Resolved (build-verified)
+**Reported by:** User
+**Area:** Widgets
+
+### Description
+The dot-grid "Event Countdown" and "Tasks Done Today" widgets were judged not up
+to standard and removed entirely from the gallery.
+
+### Removal
+- `EventCountdownWidget` struct (kind `KisaniEventCountdown`) + `EventCountdownView`.
+- `TasksCompleteWidget` (kind `KisaniTasksComplete`) + `TasksCompleteView` +
+  its only consumer `todayTaskCompletion()` in WidgetData.swift.
+- Both deregistered from `KisaniWidgetBundle`.
+- Kept (shared by the surviving bars widget): `EventConfigIntent`, `EventEntity`,
+  `EventQuery`, `EventProvider`, `EventEntry`, `CycleCountdownUnitIntent`,
+  `BarGrid`; `DotGrid` kept (used by Day Progress).
+- Untouched: Event Countdown (Bars), My Tasks, Day Progress, Lock Screen rect +
+  circular, Task Live Activity.
+
+Files modified: `KisaniCalWidgets.swift`, `EventCountdownWidget.swift`,
+`WidgetViews.swift`, `WidgetData.swift`. No files deleted (shared code remains
+in EventCountdownWidget.swift). No app-side settings referenced these widgets.