Fix Redis port collision

backend/app/Http/Controllers/Api/CourseController.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Models\Course;
+use Illuminate\Http\Request;
+
+class CourseController extends Controller
+{
+    public function index(Request $request)
+    {
+        $courses = Course::with('subject')->get();
+        return response()->json(['courses' => $courses]);
+    }
+
+    public function show(Course $course)
+    {
+        $course->load('lessons.quizzes');
+        return response()->json(['course' => $course]);
+    }
+}