Attempt to have a minute grace whenever collection get removed.

LightlessSync/PlayerData/Pairs/Pair.cs

@@ -194,9 +194,13 @@ public class Pair
     {
         var handler = TryGetHandler();
         if (handler is null)
-        {
             return PairDebugInfo.Empty;
-        }
+
+        var now = DateTime.UtcNow;
+        var dueAt = handler.VisibilityEvictionDueAtUtc;
+        var remainingSeconds = dueAt.HasValue
+            ? Math.Max(0, (dueAt.Value - now).TotalSeconds)
+            : (double?)null;
 
         return new PairDebugInfo(
             true,
@@ -206,6 +210,9 @@ public class Pair
             handler.LastDataReceivedAt,
             handler.LastApplyAttemptAt,
             handler.LastSuccessfulApplyAt,
+            handler.InvisibleSinceUtc,
+            handler.VisibilityEvictionDueAtUtc,
+            remainingSeconds,
             handler.LastFailureReason,
             handler.LastBlockingConditions,
             handler.IsApplying,