feat(web): migrate course adjustment workflow

tests/Jiaowu.Api.Tests/CourseAdjustmentsControllerTests.cs

@@ -6,11 +6,46 @@ using Jiaowu.Api.Infrastructure.Persistence;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Data.Sqlite;
 using Microsoft.EntityFrameworkCore;
+using System.Text.Json;
 
 namespace Jiaowu.Api.Tests;
 
 public sealed class CourseAdjustmentsControllerTests
 {
+    [Fact]
+    public async Task TeacherOptions_ReturnOnlyActiveNonArchivedTeachers()
+    {
+        await using var fixture = await Fixture.CreateAsync();
+        var collegeId = await fixture.Db.Courses.Select(x => x.CollegeId).SingleAsync();
+        fixture.Db.Teachers.AddRange(
+            new Teacher
+            {
+                TeacherNumber = "T002",
+                Name = "离职教师",
+                CollegeId = collegeId,
+                Status = TeacherStatus.Retired
+            },
+            new Teacher
+            {
+                TeacherNumber = "T003",
+                Name = "归档教师",
+                CollegeId = collegeId,
+                IsArchived = true
+            });
+        await fixture.Db.SaveChangesAsync();
+
+        var controller = new CourseAdjustmentsController(
+            fixture.Db,
+            new TestScope(fixture.TeacherUserId, DataScope.Self, SystemRoles.Teacher));
+        var result = await controller.GetTeacherOptions(CancellationToken.None);
+
+        var ok = Assert.IsType<OkObjectResult>(result);
+        var json = JsonSerializer.Serialize(ok.Value);
+        Assert.Contains("T001", json);
+        Assert.DoesNotContain("T002", json);
+        Assert.DoesNotContain("T003", json);
+    }
+
     [Fact]
     public async Task Reschedule_MovesOnlyTheSelectedOccurrence()
     {