public function up(): void 	{ 		Schema::create('contents', function (Blueprint $table): void { 			$table->uuid('id')->primary(); 			$table->json('content'); 			$table->unsignedTinyInteger('order_number'); 			$table->unsignedTinyInteger('type'); 			$table->uuid('page_id'); 			$table->timestamps();  			$table->foreign('page_id')->references('id')->on('pages')->onDelete('cascade'); 			$table->index(Model::CREATED_AT); 		}); 	}