feat: improve admin responsive pages and teacher candidates

apps/admin/src/pages/Classes/teacher-candidate.integration.test.ts

@@ -0,0 +1,51 @@
+import { describe, expect, it } from 'vitest';
+import {
+  buildTeacherCandidateLabel,
+  buildTeacherCandidateOptions,
+  isTeacherCandidate,
+  type TeacherCandidateUser,
+} from './teacher-candidate';
+
+const baseUser = (overrides: Partial<TeacherCandidateUser> = {}): TeacherCandidateUser => ({
+  id: 1,
+  username: 'teacher',
+  name: '测试老师',
+  isActive: true,
+  isArchived: false,
+  studentStatus: null,
+  roles: [{ code: 'teacher', name: '任课老师' }],
+  profile: { subjects: ['数学', '物理'] },
+  ...overrides,
+});
+
+describe('class teacher candidates', () => {
+  it('keeps non-teacher staff roles because class duty is selected separately', () => {
+    expect(
+      isTeacherCandidate(baseUser({ roles: [{ code: 'academic', name: '教务管理员' }] })),
+    ).toBe(true);
+  });
+
+  it('keeps staff-linked accounts so they can serve as head or life teachers', () => {
+    expect(isTeacherCandidate(baseUser({ studentStatus: 'staff' }))).toBe(true);
+  });
+
+  it('excludes active students, disabled, archived, and super-admin accounts', () => {
+    const users = [
+      baseUser({ id: 1, studentStatus: 'active' }),
+      baseUser({ id: 2, isActive: false }),
+      baseUser({ id: 3, isArchived: true }),
+      baseUser({
+        id: 4,
+        roles: [{ code: 'super_admin', name: '超级管理员' }],
+      }),
+    ];
+
+    expect(buildTeacherCandidateOptions(users)).toEqual([]);
+  });
+
+  it('shows real name, username, system role, and teaching subjects', () => {
+    expect(buildTeacherCandidateLabel(baseUser())).toBe(
+      '测试老师（teacher） · 任课老师 · 数学/物理',
+    );
+  });
+});