fix(professors, settings): add auto-migration for legacy professors, deep populate user in class/session/course services, and fix SMS bypass number persistence

components/professors/professorUserMerge.test.js

@@ -57,4 +57,45 @@ test('Professor Model & User Merge Tests', async (t) => {
     assert.deepEqual(formatted.expertise, ['Web', 'Vue']);
     assert.equal(formatted.isActive, true);
   });
+
+  await t.test('formatProfessorDoc handles legacy documents without linked user', () => {
+    const profId = new mongoose.Types.ObjectId();
+    const legacyDoc = {
+      _id: profId,
+      name: 'رضا',
+      surname: 'اکبری',
+      phoneNumber: '09351234567',
+      nationalIdCode: '1234567890',
+      email: 'reza@example.com',
+      cardNumber: '5022291012345678',
+      shabaNumber: 'IR980000000000000000000000',
+      bio: 'مدرس پایگاه داده',
+      isActive: true
+    };
+
+    const formatted = formatProfessorDoc(legacyDoc);
+    assert.equal(String(formatted._id), String(profId));
+    assert.equal(formatted.name, 'رضا');
+    assert.equal(formatted.surname, 'اکبری');
+    assert.equal(formatted.fullName, 'رضا اکبری');
+    assert.equal(formatted.phoneNumber, '09351234567');
+    assert.equal(formatted.nationalIdCode, '1234567890');
+    assert.equal(formatted.email, 'reza@example.com');
+  });
+
+  await t.test('Professor virtuals fallback correctly on legacy doc', () => {
+    const prof = new Professor();
+    prof._doc = {
+      name: 'مریم احمدی',
+      surname: 'احمدی',
+      phoneNumber: '09121112233',
+      nationalIdCode: '0076543210',
+      email: 'maryam@example.com'
+    };
+
+    assert.equal(prof.name, 'مریم احمدی');
+    assert.equal(prof.surname, 'احمدی');
+    assert.equal(prof.phoneNumber, '09121112233');
+    assert.equal(prof.nationalIdCode, '0076543210');
+  });
 });