重构项目结构，移除Assignment相关功能，优化Submission模块

TechHelper.Client/Pages/Common/Question/QuestionType.razor

@@ -0,0 +1,31 @@
+@using TechHelper.Client.Services
+@using Entities.DTO
+@using Entities.Contracts
+
+
+<MudChipSet T="TypeCommonDto" @bind-SelectedValue="@SelectedValue">
+	@foreach (var item in QuestionTypes)
+	{
+		<MudChip Color="Color.Primary" Value="@item"> @item.Name</MudChip>
+	}
+</MudChipSet> 
+
+
+@code {
+	private TypeCommonDto SelectedValue;
+	private List<TypeCommonDto> QuestionTypes;
+
+	[Parameter]
+	public TypeNameType Type { get; set; }
+
+	[Parameter]
+	public Guid? SubjectID { get; set; } = null;
+
+	[Inject]
+	public ICommonService CommonService { get; set; }
+
+	protected async override Task OnInitializedAsync()
+	{
+		var QuestionServices = await CommonService.GetCommonTypesAsync(Type, SubjectID);
+	}
+}