Queue chat bulk actions through SQL outbox

server/QMax.Api/Data/Entities/Chat.cs

@@ -14,6 +14,13 @@ public sealed class Chat
     public bool IsPinned { get; set; }
     public bool IsMuted { get; set; }
     public bool IsArchived { get; set; }
+    public DateTimeOffset? DeletedAt { get; set; }
+    public DateTimeOffset? HistoryClearedAt { get; set; }
+    public ChatPendingMaxAction? PendingMaxAction { get; set; }
+    public DateTimeOffset? PendingMaxActionRequestedAt { get; set; }
+    public DateTimeOffset? PendingMaxActionLastAttemptAt { get; set; }
+    public int PendingMaxActionAttempts { get; set; }
+    public string? PendingMaxActionError { get; set; }
     public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
     public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
     public ICollection<Message> Messages { get; set; } = new List<Message>();

server/QMax.Api/Data/Entities/Enums.cs

@@ -8,6 +8,12 @@ public enum ChatKind
     MaxDialog = 3
 }
 
+public enum ChatPendingMaxAction
+{
+    ClearHistory = 0,
+    DeleteChat = 1
+}
+
 public enum MessageDirection
 {
     Incoming = 0,