Colocated entity type configurations with entities

Added tenant entities and models
Modified db context

PostFundManagement.Domain/Entities/Instrument.cs

@@ -1,9 +1,41 @@
+using static PostFundManagement.Domain.Extensions.Constants;
+
 namespace PostFundManagement.Domain.Entities;
 
-[EntityTypeConfiguration<Configuration.Entities.Instrument, Instrument>]
+[EntityTypeConfiguration<InstrumentConfiguration, Instrument>]
 public class Instrument : Models.Instrument
 {
     public virtual User? Creator { get; set; }
 
     public virtual Programme? Programme { get; set; }
-}
+}
+
+public sealed class InstrumentConfiguration : IEntityTypeConfiguration<Instrument>
+{
+    public void Configure(EntityTypeBuilder<Instrument> builder)
+    {
+        builder.ToTable(nameof(Instrument).Pluralize());
+
+        builder.HasKey(pk => pk.Id);
+        builder.Property(f => f.ProgrammeId).IsRequired();
+        builder.Property(f => f.Code).IsRequired().HasMaxLength(ShortLabelLength);
+        builder.Property(f => f.Name).IsRequired().HasMaxLength(LabelLength);
+        builder.Property(f => f.Description).IsRequired(false).HasMaxLength(TextLength);
+        builder.Property(f => f.Status).IsRequired().HasConversion<int>().HasDefaultValueSql("2")
+            .HasSentinel(ActivityStatus.Inactive);
+        builder.Property(f => f.CreatedBy).IsRequired();
+        builder.Property(f => f.CreatedAt).IsRequired().HasDefaultValueSql("now()");
+
+        builder.HasOne(f => f.Programme)
+            .WithMany(f => f.Instruments)
+            .HasForeignKey(fk => fk.ProgrammeId)
+            .IsRequired()
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(f => f.Creator)
+            .WithMany()
+            .HasForeignKey(fk => fk.CreatedBy)
+            .IsRequired()
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}