feat: add create product command

Src/Product.Application/Product.Application.csproj

@@ -7,13 +7,13 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <Folder Include="Commands" />
-      <Folder Include="Handlers" />
-      <Folder Include="Queries" />
+      <PackageReference Include="MediatR" Version="12.1.1" />
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="MediatR" Version="12.1.1" />
+      <Folder Include="Category\Commands" />
+      <Folder Include="Category\Queries" />
+      <Folder Include="Product\Queries" />
     </ItemGroup>
 
 </Project>

Src/Product.Application/Product/Commands/CreateProduct/CreateProductCommand.cs

@@ -0,0 +1,25 @@
+using MediatR;
+
+namespace Product.Application.Product.Commands;
+
+public class CreateProductCommand : IRequest
+{
+    public CreateProductCommand(string title,
+        decimal price,
+        string subTitle = default,
+        string description = default,
+        int categoryId = default)
+    {
+        Title = title;
+        SubTitle = subTitle;
+        Description = description;
+        Price = price;
+        CategoryId = categoryId;
+    }
+
+    public string Title { get; private set; }
+    public string? SubTitle { get; private set; }
+    public string? Description { get; private set; }
+    public decimal Price { get; private set; }
+    public int CategoryId { get; private set; }
+}

Src/Product.Application/Product/Commands/CreateProduct/CreateProductCommandHandler.cs

@@ -0,0 +1,11 @@
+using MediatR;
+
+namespace Product.Application.Product.Commands;
+
+public sealed class CreateProductCommandHandler : IRequestHandler<CreateProductCommand>
+{
+    public Task Handle(CreateProductCommand request, CancellationToken cancellationToken)
+    {
+        throw new NotImplementedException();
+    }
+}

Src/Product.Application/Product/Commands/CreateProduct/CreateProductCommandValidator.cs

@@ -0,0 +1,6 @@
+namespace Product.Application.Product.Commands;
+
+public class CreateProductCommandValidator
+{
+
+}