feat: Add EF configurations and migration for network-club system

EF Core Configurations (11 files):
- SystemConfigurationConfiguration with Scope+Key composite index
- ClubMembershipConfiguration with one-to-one User relationship
- ClubFeatureConfiguration with IsActive+SortOrder index
- UserClubFeatureConfiguration with composite unique index
- NetworkWeeklyBalanceConfiguration with UserId+WeekNumber index
- WeeklyCommissionPoolConfiguration with unique WeekNumber
- UserCommissionPayoutConfiguration with multiple indexes
- ClubMembershipHistoryConfiguration for audit trail
- NetworkMembershipHistoryConfiguration for audit trail
- CommissionPayoutHistoryConfiguration for audit trail
- SystemConfigurationHistoryConfiguration for audit trail

Configuration Updates:
- UserConfiguration: Add NetworkParentId, LegPosition with indexes
- UserWalletConfiguration: Add DiscountBalance field
- ProductsConfiguration: Add IsClubExclusive, ClubDiscountPercent with index

Infrastructure Updates:
- ApplicationDbContext: Add 11 new DbSets for network-club entities
- GlobalUsings: Add Domain entity namespaces

Migration:
- AddNetworkClubSystemV2: Complete database schema for network-club system

src/CMSMicroservice.Infrastructure/Persistence/Configurations/UserCommissionPayoutConfiguration.cs

@@ -0,0 +1,60 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace CMSMicroservice.Infrastructure.Persistence.Configurations;
+
+/// <summary>
+/// پرداخت کمیسیون به کاربران
+/// </summary>
+public class UserCommissionPayoutConfiguration : IEntityTypeConfiguration<UserCommissionPayout>
+{
+    public void Configure(EntityTypeBuilder<UserCommissionPayout> builder)
+    {
+        builder.HasQueryFilter(p => !p.IsDeleted);
+        builder.Ignore(entity => entity.DomainEvents);
+        
+        builder.HasKey(entity => entity.Id);
+        builder.Property(entity => entity.Id).UseIdentityColumn();
+        
+        builder.Property(entity => entity.UserId).IsRequired();
+        builder.Property(entity => entity.WeekNumber).IsRequired().HasMaxLength(20);
+        builder.Property(entity => entity.WeeklyPoolId).IsRequired();
+        builder.Property(entity => entity.BalancesEarned).IsRequired();
+        builder.Property(entity => entity.ValuePerBalance).IsRequired();
+        builder.Property(entity => entity.TotalAmount).IsRequired();
+        builder.Property(entity => entity.Status).IsRequired();
+        builder.Property(entity => entity.PaidAt).IsRequired(false);
+        builder.Property(entity => entity.WithdrawalMethod).IsRequired(false);
+        builder.Property(entity => entity.IbanNumber).IsRequired(false).HasMaxLength(26);
+        builder.Property(entity => entity.WithdrawnAt).IsRequired(false);
+        
+        // رابطه با User
+        builder.HasOne(entity => entity.User)
+            .WithMany(u => u.CommissionPayouts)
+            .HasForeignKey(entity => entity.UserId)
+            .OnDelete(DeleteBehavior.Restrict);
+        
+        // رابطه با WeeklyCommissionPool
+        builder.HasOne(entity => entity.WeeklyPool)
+            .WithMany(wp => wp.UserCommissionPayouts)
+            .HasForeignKey(entity => entity.WeeklyPoolId)
+            .OnDelete(DeleteBehavior.Restrict);
+        
+        // Composite Index برای UserId و WeekNumber
+        builder.HasIndex(e => new { e.UserId, e.WeekNumber })
+            .IsUnique()
+            .HasDatabaseName("IX_UserCommissionPayout_UserId_WeekNumber");
+        
+        // Index برای WeeklyPoolId
+        builder.HasIndex(e => e.WeeklyPoolId)
+            .HasDatabaseName("IX_UserCommissionPayout_WeeklyPoolId");
+        
+        // Index برای Status
+        builder.HasIndex(e => e.Status)
+            .HasDatabaseName("IX_UserCommissionPayout_Status");
+        
+        // Index برای WeekNumber
+        builder.HasIndex(e => e.WeekNumber)
+            .HasDatabaseName("IX_UserCommissionPayout_WeekNumber");
+    }
+}