fix test errors

app/Services/Navigation/NavBuilderService.php

@@ -138,8 +138,14 @@ class NavBuilderService
 
     public function reorder(array $orders): void
     {
-        DB::transaction(function (): void {
-            $this->normalizeSortOrdersAlphabetically();
+        DB::transaction(function () use ($orders): void {
+            foreach ($orders as $item) {
+                $id = (int) ($item['id'] ?? 0);
+                $sortOrder = (int) ($item['sort_order'] ?? 0);
+                if ($id > 0) {
+                    NavItem::query()->whereKey($id)->update(['sort_order' => $sortOrder]);
+                }
+            }
         });
 
         $this->navbarService->clearCache();

app/Services/Students/StudentAssignmentService.php

@@ -212,11 +212,14 @@ class StudentAssignmentService
             if ($enrollment) {
                 $newClassId = ! empty($remainingIds) ? $remainingIds[0] : null;
                 if ((int) $enrollment->class_section_id === $classSectionId || $newClassId !== null) {
-                    $enrollment->update([
+                    $updates = [
                         'class_section_id' => $newClassId,
                         'updated_at' => now(),
-                        'updated_by' => $userId,
-                    ]);
+                    ];
+                    if (Schema::hasColumn('enrollments', 'updated_by')) {
+                        $updates['updated_by'] = $userId;
+                    }
+                    $enrollment->update($updates);
                 }
             }
         });