Make the countdown narrow enough for the slot it sits in

Text(style: .timer) renders 1:23:45 once more than an hour out. An
accessoryCorner has room for three or four characters beside its curved label,
and a circular gauge for about the same, so the live timer overlapped what it
sat next to.

Replaced with a compact value — "23m", "2h", "3d" — recomputed per timeline
entry, which is why the timeline now carries a mark every minute for the first
hour. Both corner kinds and the gauge also get lineLimit(1) and a minimum scale
factor, so an unexpectedly wide value shrinks instead of colliding.

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

CalendarrWatchComplications/CornerComplicationViews.swift

@@ -14,7 +14,12 @@ struct CornerCountdownComplicationView: View {
         let next = WatchComplicationSupport.nextEvent(in: entry.snapshot, at: entry.date)
         Group {
             if let next {
-                Text(WatchComplicationSupport.countdownTarget(next, at: entry.date), style: .timer)
+                Text(WatchComplicationSupport.compactCountdown(
+                        to: WatchComplicationSupport.countdownTarget(next, at: entry.date),
+                        at: entry.date,
+                        language: entry.language))
+                    .lineLimit(1)
+                    .minimumScaleFactor(0.6)
                     .widgetAccentable()
             } else {
                 Image(systemName: "calendar")
@@ -37,6 +42,8 @@ struct CornerTimeComplicationView: View {
                 Text(next.isAllDay
                      ? WatchL10n.t("watch.allday", entry.language)
                      : WatchComplicationSupport.time(next.start, language: entry.language))
+                    .lineLimit(1)
+                    .minimumScaleFactor(0.6)
                     .widgetAccentable()
             } else {
                 Image(systemName: "calendar")