Consume PocketBase for posts and events, with English routes

Elternbeirat.Web/Features/Events/IcsCalendar.cs

@@ -1,7 +1,7 @@
 using System.Globalization;
 using System.Security.Cryptography;
 using System.Text;
-using Elternbeirat.Web.Services;
+using Elternbeirat.Contracts;
 
 namespace Elternbeirat.Web.Features.Events;
 
@@ -45,7 +45,7 @@ public static class IcsCalendar
         // between requests, so caches and clients do not see spurious changes.
         AppendLine(sb, "DTSTAMP:20000101T000000Z");
 
-        if (ev.HasTime)
+        if (HasTime(ev))
         {
             AppendLine(sb, $"DTSTART:{Local(ev.Start)}");
             if (ev.End is { } end)
@@ -75,6 +75,12 @@ 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.