✨ Rewind service basis and sphere service rewind

DysonNetwork.Shared/Models/SnRewindPoint.cs

@@ -0,0 +1,14 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace DysonNetwork.Shared.Models;
+
+public class SnRewindPoint
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public int Year { get; set; } = DateTime.UtcNow.Year;
+
+    [Column(TypeName = "jsonb")] public Dictionary<string, string> Data { get; set; } = new();
+    
+    public Guid AccountId { get; set; }
+    public SnAccount Account { get; set; } = null!;
+}