feat: Add core entities and history tables for network-club system

Core Entities:
- Add SystemConfiguration for dynamic config management
- Add ClubMembership, ClubFeature, UserClubFeature for club management
- Add NetworkWeeklyBalance for binary network tracking
- Add WeeklyCommissionPool, UserCommissionPayout for commission system

History Entities (Audit Trail):
- Add ClubMembershipHistory
- Add NetworkMembershipHistory
- Add CommissionPayoutHistory
- Add SystemConfigurationHistory

Updates to Existing Entities:
- User: Add NetworkParentId, LegPosition, and navigation properties
- UserWallet: Add NetworkBalance and DiscountBalance fields
- Products: Add IsClubExclusive and ClubDiscountPercent fields
- GlobalUsings: Add new namespaces for club/network/commission entities

src/CMSMicroservice.Domain/Entities/User.cs

@@ -36,6 +36,26 @@ public class User : BaseAuditableEntity
     public DateTime? BirthDate { get; set; }
     //پسوورد هش کاربر
     public string? HashPassword { get; set; }
+    
+    // ============= Network Club System Fields =============
+    
+    /// <summary>
+    /// شناسه والد در شبکه باینری
+    /// </summary>
+    public long? NetworkParentId { get; set; }
+    
+    /// <summary>
+    /// Network Parent Navigation Property
+    /// </summary>
+    public virtual User? NetworkParent { get; set; }
+    
+    /// <summary>
+    /// موقعیت در شبکه (شاخه چپ یا راست)
+    /// </summary>
+    public NetworkLeg? LegPosition { get; set; }
+    
+    // ============= Navigation Properties =============
+    
     //UserAddress Collection Navigation Reference
     public virtual ICollection<UserAddress> UserAddresss { get; set; }
     //UserRole Collection Navigation Reference
@@ -50,4 +70,14 @@ public class User : BaseAuditableEntity
     public virtual ICollection<UserOrder> UserOrders { get; set; }
     //UserWallet Collection Navigation Reference
     public virtual ICollection<UserWallet> UserWallets { get; set; }
+    //NetworkChildren Collection Navigation Reference (فرزندان در شبکه باینری)
+    public virtual ICollection<User>? NetworkChildren { get; set; }
+    //ClubMembership Navigation Reference
+    public virtual ClubMembership? ClubMembership { get; set; }
+    //UserClubFeature Collection Navigation Reference
+    public virtual ICollection<UserClubFeature>? UserClubFeatures { get; set; }
+    //NetworkWeeklyBalance Collection Navigation Reference
+    public virtual ICollection<NetworkWeeklyBalance>? NetworkWeeklyBalances { get; set; }
+    //UserCommissionPayout Collection Navigation Reference
+    public virtual ICollection<UserCommissionPayout>? CommissionPayouts { get; set; }
 }