feat: add pagination and random sorting to course listing endpoint with configurable page size and Fisher-Yates shuffle algorithm

Backend/src/types/courses.types.ts

@@ -1,10 +1,20 @@
 import { Course } from '@prisma/client';
 
+export interface ListCoursesInput {
+    category_id?: number;
+    page?: number;
+    limit?: number;
+    random?: boolean;
+}
+
 export interface listCourseResponse {
     code: number;
     message: string;
     data: Course[];
     total: number;
+    page: number;
+    limit: number;
+    totalPages: number;
 }
 
 export interface getCourseResponse {