Colocated entity type configurations with entities

Added tenant entities and models
Modified db context

PostFundManagement.Domain/Entities/User.cs

@@ -1,4 +1,20 @@
+using static PostFundManagement.Domain.Extensions.Constants;
+
 namespace PostFundManagement.Domain.Entities;
 
-[EntityTypeConfiguration<Configuration.Entities.User, User>]
-public sealed class User : Models.User;
+[EntityTypeConfiguration<UserConfiguration, User>]
+public sealed class User : Models.User;
+
+public sealed class UserConfiguration : IEntityTypeConfiguration<User>
+{
+    public void Configure(EntityTypeBuilder<User> builder)
+    {
+        builder.ToTable(nameof(User).Pluralize());
+
+        builder.HasKey(pk => pk.Id);
+        builder.Property(f => f.Email).IsRequired().HasMaxLength(LabelLength);
+        builder.Property(f => f.Status).IsRequired().HasConversion<int>().HasDefaultValueSql("2")
+            .HasSentinel(ActivityStatus.Inactive);
+        builder.Property(f => f.LastLoginAt).IsRequired(false);
+    }
+}