make account service with grn

Backend/ERPCore/Infra/Persistence/Configurations/GrnConfiguration.cs

@@ -16,6 +16,9 @@ public sealed class GrnConfiguration : IEntityTypeConfiguration<Grn>
 
         builder.Property(g => g.Status).HasConversion<string>().HasMaxLength(20).IsRequired();
         builder.Property(g => g.CreatedAt).IsRequired();
+        builder.Property(g => g.GlJournalNo).HasMaxLength(30);
+        builder.Property(g => g.PaidAmount).HasPrecision(18, 4);
+        builder.Property(g => g.BalanceAmount).HasPrecision(18, 4);
         builder.Property(g => g.RowVersion).IsRowVersion();
 
         builder.HasOne(g => g.PurchaseOrder).WithMany().HasForeignKey(g => g.PoId).OnDelete(DeleteBehavior.Restrict);
@@ -28,6 +31,27 @@ public sealed class GrnConfiguration : IEntityTypeConfiguration<Grn>
     }
 }
 
+public sealed class GrnPaymentConfiguration : IEntityTypeConfiguration<GrnPayment>
+{
+    public void Configure(EntityTypeBuilder<GrnPayment> builder)
+    {
+        builder.ToTable("grn_payments");
+        builder.HasKey(p => p.GrnPaymentId);
+
+        builder.Property(p => p.Amount).HasPrecision(18, 4);
+        builder.Property(p => p.PaymentDate).IsRequired();
+        builder.Property(p => p.BankAccountName).IsRequired().HasMaxLength(200);
+        builder.Property(p => p.Reference).HasMaxLength(100);
+        builder.Property(p => p.GlJournalNo).HasMaxLength(30);
+        builder.Property(p => p.CreatedAt).IsRequired();
+
+        builder.HasOne(p => p.Grn).WithMany(g => g.Payments).HasForeignKey(p => p.GrnId).OnDelete(DeleteBehavior.Restrict);
+        builder.HasOne(p => p.Creator).WithMany().HasForeignKey(p => p.CreatedBy).OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(p => p.GrnId);
+    }
+}
+
 public sealed class GrnLineConfiguration : IEntityTypeConfiguration<GrnLine>
 {
     public void Configure(EntityTypeBuilder<GrnLine> builder)

Backend/ERPCore/Infra/Persistence/ErpDbContext.cs

@@ -63,6 +63,7 @@ public class ErpDbContext : DbContext
     // --- Goods Receipt (docs/10 Part C.3) ---
     public DbSet<Grn> Grns => Set<Grn>();
     public DbSet<GrnLine> GrnLines => Set<GrnLine>();
+    public DbSet<GrnPayment> GrnPayments => Set<GrnPayment>();
 
     // --- Batch / Serial (docs/10 Part C.4) ---
     public DbSet<Batch> Batches => Set<Batch>();