教师档案增加“激活账号”：管理员设置初始密码，服务端校验管理权限、学院数据范围、在职状态、工号冲突，并自动关联教师角色与档案。

已发布课表增加“发布后修改”：创建修订草稿，旧课表继续生效；修订版重新发布后再替换旧版本。
修复 390px 窄屏下课表页头按钮溢出。

src/Jiaowu.Api/Controllers/PersonnelController.cs

@@ -5,6 +5,7 @@ using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
 using Jiaowu.Api.Infrastructure.Persistence;
 using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 
@@ -15,7 +16,8 @@ namespace Jiaowu.Api.Controllers;
 [Route("api/personnel")]
 public sealed class PersonnelController(
     AppDbContext db,
-    ICurrentUserDataScope currentUserDataScope) : ControllerBase
+    ICurrentUserDataScope currentUserDataScope,
+    UserManager<ApplicationUser> userManager) : ControllerBase
 {
     private const string ReadRoles =
         SystemRoles.SuperAdmin + "," +
@@ -149,6 +151,61 @@ public sealed class PersonnelController(
         return await SaveNoContentAsync(cancellationToken);
     }
 
+    [HttpPost("teachers/{id:guid}/activate-account")]
+    [Authorize(Roles = WriteRoles)]
+    public async Task<ActionResult> ActivateTeacherAccount(
+        Guid id,
+        TeacherAccountActivationRequest request,
+        CancellationToken cancellationToken)
+    {
+        var teacher = await db.Teachers.FindAsync([id], cancellationToken);
+        if (teacher is null) return NotFound();
+        if (!CanAccessCollege(teacher.CollegeId)) return Forbid();
+        if (teacher.Status != TeacherStatus.Active)
+        {
+            return ConflictProblem("仅在职教师可以激活登录账号。");
+        }
+        if (teacher.UserId.HasValue)
+        {
+            return ConflictProblem("该教师档案已经关联登录账号。");
+        }
+
+        var userName = teacher.TeacherNumber.Trim();
+        if (await userManager.FindByNameAsync(userName) is not null)
+        {
+            return ConflictProblem("该工号已有登录账号但未正确关联，请到账号管理中核对。");
+        }
+
+        await using var transaction = await db.Database.BeginTransactionAsync(cancellationToken);
+        var user = new ApplicationUser
+        {
+            UserName = userName,
+            DisplayName = teacher.Name,
+            StaffNumber = userName,
+            CollegeId = teacher.CollegeId,
+            IsEnabled = true,
+            LockoutEnabled = true
+        };
+        var result = await userManager.CreateAsync(user, request.Password);
+        if (!result.Succeeded)
+        {
+            await transaction.RollbackAsync(cancellationToken);
+            return IdentityValidationProblem(result);
+        }
+
+        result = await userManager.AddToRoleAsync(user, SystemRoles.Teacher);
+        if (!result.Succeeded)
+        {
+            await transaction.RollbackAsync(cancellationToken);
+            return IdentityValidationProblem(result);
+        }
+
+        teacher.UserId = user.Id;
+        await db.SaveChangesAsync(cancellationToken);
+        await transaction.CommitAsync(cancellationToken);
+        return Ok(new { user.Id, UserName = userName });
+    }
+
     [HttpGet("students")]
     public async Task<ActionResult<PagedResult<object>>> GetStudents(
         [FromQuery] PersonnelQuery query,
@@ -393,6 +450,13 @@ public sealed class PersonnelController(
             Status = StatusCodes.Status409Conflict
         });
 
+    private ActionResult IdentityValidationProblem(IdentityResult result)
+    {
+        foreach (var error in result.Errors)
+            ModelState.AddModelError(error.Code, error.Description);
+        return ValidationProblem(ModelState);
+    }
+
     private static string? Normalize(string? value) =>
         string.IsNullOrWhiteSpace(value) ? null : value.Trim();
 
@@ -436,3 +500,6 @@ public sealed record StudentRequest(
     [MaxLength(30)] string? Phone,
     [EmailAddress, MaxLength(100)] string? Email,
     [MaxLength(500)] string? Notes);
+
+public sealed record TeacherAccountActivationRequest(
+    [Required, MinLength(8), MaxLength(100)] string Password);