EF Core ignores some of my mapping configuration - entity-framework-core

Question

I have a class for my model and another class for mapping models with EF Core. When I add a migration, EF Core ignores my mapping configuration.
For example, the max length for all properties is max.
Here's my code:
Model class:
public class Product : EntityBase
{
public string Name { get; private set; }
public string Code { get; private set; }
public double UnitPrice { get; private set; }
public bool IsInStock { get; private set; }
public string ShortDescription { get; private set; }
public string Description { get; private set; }
public string Picture { get; private set; }
public string PictureAlt { get; private set; }
public string PictureTitle { get; private set; }
public long CategoryId { get; private set; }
public string Slug { get; private set; }
public string Keywords { get; private set; }
public string MetaDescription { get; private set; }
public ProductCategory Category { get; set; }
}
Mapping class:
public class ProductMapping:IEntityTypeConfiguration<Product>
{
public void Configure(EntityTypeBuilder<Product> builder)
{
builder.ToTable("Products");
builder.HasKey(x => x.Id);
builder.Property(x => x.Name).HasMaxLength(255).IsRequired();
builder.Property(x => x.Code).HasMaxLength(15).IsRequired();
builder.Property(x => x.ShortDescription).HasMaxLength(500).IsRequired();
builder.Property(x => x.Picture).HasMaxLength(1000);
builder.Property(x => x.PictureAlt).HasMaxLength(255);
builder.Property(x => x.PictureTitle).HasMaxLength(500);
builder.Property(x => x.Description).HasMaxLength(1000);
builder.Property(x => x.Keywords).HasMaxLength(500).IsRequired();
builder.Property(x => x.MetaDescription).HasMaxLength(150).IsRequired();
builder.Property(x => x.Slug).HasMaxLength(500).IsRequired();
builder.HasOne(x => x.Category)
.WithMany(x => x.Products)
.HasForeignKey(x => x.CategoryId);
}
}
Migration :
public partial class ProductAdd : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "Products",
columns: table => new
{
Id = table.Column<long>(type: "bigint", nullable: false)
.Annotation("SqlServer:Identity", "1, 1"),
Name = table.Column<string>(type: "nvarchar(max)", nullable: true),
Code = table.Column<string>(type: "nvarchar(max)", nullable: true),
UnitPrice = table.Column<double>(type: "float", nullable: false),
IsInStock = table.Column<bool>(type: "bit", nullable: false),
ShortDescription = table.Column<string>(type: "nvarchar(max)", nullable: true),
Description = table.Column<string>(type: "nvarchar(max)", nullable: true),
Picture = table.Column<string>(type: "nvarchar(max)", nullable: true),
PictureAlt = table.Column<string>(type: "nvarchar(max)", nullable: true),
PictureTitle = table.Column<string>(type: "nvarchar(max)", nullable: true),
CategoryId = table.Column<long>(type: "bigint", nullable: false),
Slug = table.Column<string>(type: "nvarchar(max)", nullable: true),
Keywords = table.Column<string>(type: "nvarchar(max)", nullable: true),
MetaDescription = table.Column<string>(type: "nvarchar(max)", nullable: true),
CreationDate = table.Column<DateTime>(type: "datetime2", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_Products", x => x.Id);
table.ForeignKey(
name: "FK_Products_ProductCategories_CategoryId",
column: x => x.CategoryId,
principalTable: "ProductCategories",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateIndex(
name: "IX_Products_CategoryId",
table: "Products",
column: "CategoryId");
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "Products");
}
}
My context:
public class ShopContext:DbContext
{
public DbSet<ProductCategory> ProductCategories { get; set; }
public DbSet<Product> Products { get; set; }
public ShopContext(DbContextOptions<ShopContext> options):base(options)
{
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
var assembly = typeof(ProductCategory).Assembly;
modelBuilder.ApplyConfigurationsFromAssembly(assembly);
base.OnModelCreating(modelBuilder);
}
}