feat: 添加学生提交系统功能

- 添加学生提交管理服务 (StudentSubmissionService, StudentSubmissionDetailService)
- 新增学生提交相关控制器 (StudentSubmissionController, StudentSubmissionDetailController)
- 添加学生提交数据传输对象 (StudentSubmissionDetailDto, StudentSubmissionSummaryDto)
- 新增学生提交相关页面组件 (StudentExamView, ExamDetailView, StudentCard等)
- 添加学生提交信息卡片组件 (SubmissionInfoCard, TeacherSubmissionInfoCard)
- 更新数据库迁移文件以支持提交系统

TechHelper.Client/Services/ClasssServices.cs

@@ -54,6 +54,11 @@ namespace TechHelper.Client.Services
 			}
 		}
 
+		public StudentDto GetStudents(byte Class)
+		{
+			throw new NotImplementedException();
+		}
+
 		public async Task<ResponseDto> UserRegister(UserRegistrationToClassDto userRegistrationToClassDto)
 		{
 			try

TechHelper.Client/Services/IClassServices.cs

@@ -10,5 +10,6 @@ namespace TechHelper.Client.Services
 		public Task<ResponseDto> CreateClass(UserRegistrationToClassDto userClass);
 		public Task<ApiResponse> GetClassStudents();
 		public Task<ApiResponse> GetGradeClasses(byte grade);
+		public StudentDto GetStudents(byte Class);
 	}
 }

TechHelper.Client/Services/IStudentSubmissionDetailService.cs

@@ -0,0 +1,14 @@
+using Entities.DTO;
+
+namespace TechHelper.Client.Services
+{
+    public interface IStudentSubmissionDetailService
+    {
+        /// <summary>
+        /// 获取学生提交的详细信息
+        /// </summary>
+        /// <param name="submissionId">提交ID</param>
+        /// <returns>学生提交详细信息</returns>
+        Task<StudentSubmissionDetailDto> GetSubmissionDetailAsync(Guid submissionId);
+    }
+}

TechHelper.Client/Services/IStudentSubmissionService.cs

@@ -0,0 +1,22 @@
+using Entities.DTO;
+using TechHelper.Services;
+
+namespace TechHelper.Client.Services
+{
+    public interface IStudentSubmissionService
+    {
+        /// <summary>
+        /// 获取当前学生的所有提交摘要
+        /// </summary>
+        /// <returns>学生提交摘要列表</returns>
+        Task<ApiResponse> GetMySubmissionsAsync();
+
+        /// <summary>
+        /// 获取当前学生的提交摘要（分页）
+        /// </summary>
+        /// <param name="pageNumber">页码，默认为1</param>
+        /// <param name="pageSize">每页数量，默认为10</param>
+        /// <returns>分页的学生提交摘要列表</returns>
+        Task<ApiResponse> GetMySubmissionsPagedAsync(int pageNumber = 1, int pageSize = 10);
+    }
+}

TechHelper.Client/Services/StudentSubmissionDetailService.cs

@@ -0,0 +1,26 @@
+using Entities.DTO;
+using TechHelper.Client.HttpRepository;
+using System.Net.Http.Json;
+
+namespace TechHelper.Client.Services
+{
+    public class StudentSubmissionDetailService : IStudentSubmissionDetailService
+    {
+        private readonly HttpClient _httpClient;
+
+        public StudentSubmissionDetailService(HttpClient httpClient)
+        {
+            _httpClient = httpClient;
+        }
+
+        public async Task<StudentSubmissionDetailDto> GetSubmissionDetailAsync(Guid submissionId)
+        {
+            var response = await _httpClient.GetAsync($"api/student-submission-detail/{submissionId}");
+            if (response.IsSuccessStatusCode)
+            {
+                return await response.Content.ReadFromJsonAsync<StudentSubmissionDetailDto>();
+            }
+            throw new HttpRequestException($"获取学生提交详细信息失败: {response.StatusCode}");
+        }
+    }
+}

TechHelper.Client/Services/StudentSubmissionService.cs

@@ -0,0 +1,75 @@
+using Entities.DTO;
+using TechHelper.Services;
+using System.Net.Http.Json;
+using Newtonsoft.Json;
+
+namespace TechHelper.Client.Services
+{
+    public class StudentSubmissionService : IStudentSubmissionService
+    {
+        private readonly HttpClient _client;
+
+        public StudentSubmissionService(HttpClient client)
+        {
+            _client = client;
+        }
+
+        /// <summary>
+        /// 获取当前学生的所有提交摘要
+        /// </summary>
+        /// <returns>学生提交摘要列表</returns>
+        public async Task<ApiResponse> GetMySubmissionsAsync()
+        {
+            try
+            {
+                var response = await _client.GetAsync("student-submission/my-submissions");
+                
+                if (response.IsSuccessStatusCode)
+                {
+                    var content = await response.Content.ReadAsStringAsync();
+                    var submissions = JsonConvert.DeserializeObject<List<StudentSubmissionSummaryDto>>(content);
+                    return ApiResponse.Success(result: submissions);
+                }
+                else
+                {
+                    var errorContent = await response.Content.ReadAsStringAsync();
+                    return ApiResponse.Error(message: $"获取学生提交信息失败: {response.StatusCode} - {errorContent}");
+                }
+            }
+            catch (Exception ex)
+            {
+                return ApiResponse.Error(message: $"内部错误: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 获取当前学生的提交摘要（分页）
+        /// </summary>
+        /// <param name="pageNumber">页码，默认为1</param>
+        /// <param name="pageSize">每页数量，默认为10</param>
+        /// <returns>分页的学生提交摘要列表</returns>
+        public async Task<ApiResponse> GetMySubmissionsPagedAsync(int pageNumber = 1, int pageSize = 10)
+        {
+            try
+            {
+                var response = await _client.GetAsync($"student-submission/my-submissions-paged?pageNumber={pageNumber}&pageSize={pageSize}");
+                
+                if (response.IsSuccessStatusCode)
+                {
+                    var content = await response.Content.ReadAsStringAsync();
+                    var result = JsonConvert.DeserializeObject<StudentSubmissionSummaryResponseDto>(content);
+                    return ApiResponse.Success(result: result);
+                }
+                else
+                {
+                    var errorContent = await response.Content.ReadAsStringAsync();
+                    return ApiResponse.Error(message: $"获取学生提交信息失败: {response.StatusCode} - {errorContent}");
+                }
+            }
+            catch (Exception ex)
+            {
+                return ApiResponse.Error(message: $"内部错误: {ex.Message}");
+            }
+        }
+    }
+}