Feat: Учебная часть для студентов

✅ Login Modal в навигации
✅ Навигация: Админка (для админов), Мои курсы, Тесты
✅ StudentCourseController - список и просмотр курсов
✅ StudentTestController - список и просмотр тестов
✅ Маршруты /student/courses, /student/tests
✅ Views для курсов и тестов

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

app/Http/Controllers/Student/CourseController.php

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+<?php
+
+namespace App\Http\Controllers\Student;
+
+use App\Http\Controllers\Controller;
+use App\Models\Course;
+use App\Models\CourseAssignment;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+
+class CourseController extends Controller
+{
+    public function __construct()
+    {
+        $this->middleware('auth');
+    }
+
+    public function index()
+    {
+        $user = Auth::user();
+        
+        // Получаем назначения для пользователя
+        $query = CourseAssignment::with(['course', 'group', 'organization'])
+            ->where('is_active', true)
+            ->where(function($q) use ($user) {
+                // Индивидуальные назначения
+                $q->where('type', 'individual')
+                  ->where('user_id', $user->id);
+                
+                // Или назначения группе пользователя
+                if ($user->groups->count() > 0) {
+                    $q->orWhere(function($sub) use ($user) {
+                        $sub->where('type', 'group')
+                            ->whereIn('group_id', $user->groups->pluck('id'));
+                    });
+                }
+                
+                // Или назначения организации пользователя
+                if ($user->organization_id) {
+                    $q->orWhere(function($sub) use ($user) {
+                        $sub->where('type', 'organization')
+                            ->where('organization_id', $user->organization_id);
+                    });
+                }
+            });
+        
+        $assignments = $query->get();
+        
+        // Группируем по курсам
+        $courses = $assignments->unique('course_id')->map(function($assignment) {
+            return $assignment->course;
+        });
+        
+        return view('student.courses.index', compact('courses', 'assignments'));
+    }
+
+    public function show(Course $course)
+    {
+        $user = Auth::user();
+        
+        // Проверяем доступ к курсу
+        $hasAccess = CourseAssignment::where('course_id', $course->id)
+            ->where('is_active', true)
+            ->where(function($q) use ($user) {
+                $q->where('type', 'individual')->where('user_id', $user->id)
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'group')
+                          ->whereIn('group_id', $user->groups->pluck('id'));
+                  })
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'organization')
+                          ->where('organization_id', $user->organization_id);
+                  });
+            })->exists();
+        
+        if (!$hasAccess) {
+            abort(403, 'У вас нет доступа к этому курсу');
+        }
+        
+        $course->load(['tests', 'category']);
+        
+        return view('student.courses.show', compact('course'));
+    }
+}

app/Http/Controllers/Student/TestController.php

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+<?php
+
+namespace App\Http\Controllers\Student;
+
+use App\Http\Controllers\Controller;
+use App\Models\Test;
+use App\Models\CourseAssignment;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+
+class TestController extends Controller
+{
+    public function __construct()
+    {
+        $this->middleware('auth');
+    }
+
+    public function index()
+    {
+        $user = Auth::user();
+        
+        // Получаем тесты из доступных курсов
+        $courseIds = CourseAssignment::where('is_active', true)
+            ->where(function($q) use ($user) {
+                $q->where('type', 'individual')->where('user_id', $user->id)
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'group')
+                          ->whereIn('group_id', $user->groups->pluck('id'));
+                  })
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'organization')
+                          ->where('organization_id', $user->organization_id);
+                  });
+            })->pluck('course_id');
+        
+        $tests = Test::with(['course'])
+            ->whereIn('course_id', $courseIds)
+            ->where('is_active', true)
+            ->get();
+        
+        return view('student.tests.index', compact('tests'));
+    }
+
+    public function show(Test $test)
+    {
+        $user = Auth::user();
+        
+        // Проверяем доступ к тесту через курс
+        $hasAccess = CourseAssignment::where('course_id', $test->course_id)
+            ->where('is_active', true)
+            ->where(function($q) use ($user) {
+                $q->where('type', 'individual')->where('user_id', $user->id)
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'group')
+                          ->whereIn('group_id', $user->groups->pluck('id'));
+                  })
+                  ->orWhere(function($sub) use ($user) {
+                      $sub->where('type', 'organization')
+                          ->where('organization_id', $user->organization_id);
+                  });
+            })->exists();
+        
+        if (!$hasAccess) {
+            abort(403, 'У вас нет доступа к этому тесту');
+        }
+        
+        $test->load(['questions.answers', 'course']);
+        
+        return view('student.tests.show', compact('test'));
+    }
+}