fix：成绩提交显示500实际提交成功

tests/Jiaowu.Api.Tests/ExperimentGradesControllerTests.cs

@@ -14,6 +14,58 @@ namespace Jiaowu.Api.Tests;
 
 public sealed class ExperimentGradesControllerTests
 {
+    [Fact]
+    public async Task CollegeAdmin_CanPublishApprovedExperimentGradeSheet()
+    {
+        await using var fixture = await ExperimentGradeFixture.CreateAsync();
+        var project = new ExperimentProject
+        {
+            TeachingTaskId = fixture.Task.Id,
+            Code = "LAB-COLLEGE-PUBLISH",
+            Name = "学院发布实验",
+            ArrangementMode = ExperimentArrangementMode.Centralized,
+            StartDate = fixture.Term.StartDate,
+            EndDate = fixture.Term.EndDate,
+            Status = ExperimentProjectStatus.Published,
+            PublishedAt = DateTime.UtcNow
+        };
+        fixture.Db.ExperimentProjects.Add(project);
+        await fixture.Db.SaveChangesAsync();
+
+        var administrator = fixture.ExperimentGrades(fixture.AdminScope);
+        await administrator.CreateSheet(
+            new ExperimentGradeSheetRequest(
+                project.Id,
+                1,
+                60,
+                [new ExperimentGradeItemRequest(
+                    "操作",
+                    ExperimentGradeItemKind.Operation,
+                    100)]),
+            CancellationToken.None);
+        var sheet = await fixture.Db.ExperimentGradeSheets.SingleAsync();
+        sheet.Status = ExperimentGradeSheetStatus.Approved;
+        await fixture.Db.SaveChangesAsync();
+
+        var collegeId = await fixture.Db.TeachingTasks
+            .Where(x => x.Id == fixture.Task.Id)
+            .Select(x => x.Course!.CollegeId)
+            .SingleAsync();
+        var collegeScope = new FixedScope(new CurrentUserScope(
+            Guid.NewGuid(),
+            "学院管理员",
+            collegeId,
+            DataScope.College,
+            new HashSet<string>([SystemRoles.CollegeAdmin])));
+
+        Assert.IsType<NoContentResult>(await fixture
+            .ExperimentGrades(collegeScope)
+            .Publish(sheet.Id, CancellationToken.None));
+        Assert.Equal(
+            ExperimentGradeSheetStatus.Published,
+            (await fixture.Db.ExperimentGradeSheets.SingleAsync()).Status);
+    }
+
     [Fact]
     public async Task AssignedTeacher_CanSubmitExperimentGradeSheet()
     {