Attempt to have a minute grace whenever collection get removed.

LightlessSync/PlayerData/Pairs/IPairHandlerAdapter.cs

@@ -1,36 +1,38 @@
-using LightlessSync.API.Data;
+    using LightlessSync.API.Data;
 
-namespace LightlessSync.PlayerData.Pairs;
+    namespace LightlessSync.PlayerData.Pairs;
 
-/// <summary>
-///     orchestrates the lifecycle of a paired character
-/// </summary>
-public interface IPairHandlerAdapter : IDisposable, IPairPerformanceSubject
-{
-    new string Ident { get; }
-    bool Initialized { get; }
-    bool IsVisible { get; }
-    bool ScheduledForDeletion { get; set; }
-    CharacterData? LastReceivedCharacterData { get; }
-    long LastAppliedDataBytes { get; }
-    new string? PlayerName { get; }
-    string PlayerNameHash { get; }
-    uint PlayerCharacterId { get; }
-    DateTime? LastDataReceivedAt { get; }
-    DateTime? LastApplyAttemptAt { get; }
-    DateTime? LastSuccessfulApplyAt { get; }
-    string? LastFailureReason { get; }
-    IReadOnlyList<string> LastBlockingConditions { get; }
-    bool IsApplying { get; }
-    bool IsDownloading { get; }
-    int PendingDownloadCount { get; }
-    int ForbiddenDownloadCount { get; }
+    /// <summary>
+    ///     orchestrates the lifecycle of a paired character
+    /// </summary>
+    public interface IPairHandlerAdapter : IDisposable, IPairPerformanceSubject
+    {
+        new string Ident { get; }
+        bool Initialized { get; }
+        bool IsVisible { get; }
+        bool ScheduledForDeletion { get; set; }
+        CharacterData? LastReceivedCharacterData { get; }
+        long LastAppliedDataBytes { get; }
+        new string? PlayerName { get; }
+        string PlayerNameHash { get; }
+        uint PlayerCharacterId { get; }
+        DateTime? LastDataReceivedAt { get; }
+        DateTime? LastApplyAttemptAt { get; }
+        DateTime? LastSuccessfulApplyAt { get; }
+        string? LastFailureReason { get; }
+        IReadOnlyList<string> LastBlockingConditions { get; }
+        bool IsApplying { get; }
+        bool IsDownloading { get; }
+        int PendingDownloadCount { get; }
+        int ForbiddenDownloadCount { get; }
+        DateTime? InvisibleSinceUtc { get; }
+        DateTime? VisibilityEvictionDueAtUtc { get; }
 
     void Initialize();
-    void ApplyData(CharacterData data);
-    void ApplyLastReceivedData(bool forced = false);
-    bool FetchPerformanceMetricsFromCache();
-    void LoadCachedCharacterData(CharacterData data);
-    void SetUploading(bool uploading);
-    void SetPaused(bool paused);
-}
+        void ApplyData(CharacterData data);
+        void ApplyLastReceivedData(bool forced = false);
+        bool FetchPerformanceMetricsFromCache();
+        void LoadCachedCharacterData(CharacterData data);
+        void SetUploading(bool uploading);
+        void SetPaused(bool paused);
+    }