Define the all-day rule once as Event.HasTime

Elternbeirat.Web/Features/Events/IcsCalendar.cs

@@ -45,7 +45,7 @@ public static class IcsCalendar
         // between requests, so caches and clients do not see spurious changes.
         AppendLine(sb, "DTSTAMP:20000101T000000Z");
 
-        if (HasTime(ev))
+        if (ev.HasTime)
         {
             AppendLine(sb, $"DTSTART:{Local(ev.Start)}");
             if (ev.End is { } end)
@@ -75,12 +75,6 @@ public static class IcsCalendar
         AppendLine(sb, "END:VEVENT");
     }
 
-    /// <summary>
-    /// An entry counts as all-day when its start has no wall-clock time (00:00).
-    /// PocketBase has no separate flag; the convention is a midnight start.
-    /// </summary>
-    private static bool HasTime(Event ev) => ev.Start.TimeOfDay != TimeSpan.Zero;
-
     /// <summary>
     /// A UID that stays the same as long as the entry's title and start do, so a
     /// re-subscribe updates the event instead of creating a duplicate.