Feat: Назначения курсов — Controller + Policy + Routes

✅ CourseAssignmentController (resource)
✅ CourseAssignmentPolicy
✅ Маршруты: /admin/course-assignments
✅ Регистрация в AuthServiceProvider

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

routes/web.php

@@ -9,6 +9,7 @@ use App\Http\Controllers\Admin\CourseCategoryController;
 use App\Http\Controllers\Admin\CourseController;
 use App\Http\Controllers\Admin\TestController;
 use App\Http\Controllers\Admin\QuestionController;
+use App\Http\Controllers\Admin\CourseAssignmentController;
 use App\Http\Controllers\DashboardController;
 use Illuminate\Support\Facades\Route;
 
@@ -46,5 +47,6 @@ Route::middleware('auth')->group(function () {
         Route::resource('courses', CourseController::class);
         Route::resource('courses.tests', TestController::class);
         Route::resource('tests.questions', QuestionController::class);
+        Route::resource('course-assignments', CourseAssignmentController::class);
     });
 });