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/SmallComplicationViews.swift

@@ -24,8 +24,11 @@ struct CountdownComplicationView: View {
             Gauge(value: WatchComplicationSupport.gaugeFraction(to: target, at: entry.date)) {
                 Image(systemName: "calendar")
             } currentValueLabel: {
-                Text(target, style: .timer)
-                    .font(.system(size: 12))
+                Text(WatchComplicationSupport.compactCountdown(to: target, at: entry.date,
+                                                               language: entry.language))
+                    .font(.system(size: 13))
+                    .lineLimit(1)
+                    .minimumScaleFactor(0.6)
             }
             .gaugeStyle(.accessoryCircularCapacity)
             .widgetAccentable()