♻️ Extract the Storage service to DysonNetwork.Drive microservice

DysonNetwork.Drive/Auth/Session.cs

@@ -0,0 +1,42 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using DysonNetwork.Drive.Models;
+
+namespace DysonNetwork.Drive.Auth;
+
+public class Session
+{
+    [Key]
+    public Guid Id { get; set; } = Guid.NewGuid();
+    
+    [Required]
+    public Guid AccountId { get; set; }
+    public virtual Account? Account { get; set; }
+    
+    [Required]
+    [MaxLength(64)]
+    public string Token { get; set; } = null!;
+    
+    public string? UserAgent { get; set; }
+    public string? IpAddress { get; set; }
+    
+    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
+    public DateTimeOffset? ExpiresAt { get; set; }
+    public DateTimeOffset LastActiveAt { get; set; } = DateTimeOffset.UtcNow;
+    
+    public bool IsActive { get; set; } = true;
+    
+    // Additional metadata
+    public string? DeviceInfo { get; set; }
+    public string? LocationInfo { get; set; }
+    
+    public void UpdateLastActive()
+    {
+        LastActiveAt = DateTimeOffset.UtcNow;
+    }
+    
+    public bool IsExpired()
+    {
+        return ExpiresAt.HasValue && DateTimeOffset.UtcNow >= ExpiresAt.Value;
+    }
+}