public function up(): void 	{ 		Schema::create('companies', function (Blueprint $table): void { 			$table->uuid('id')->primary(); 			$table->unsignedInteger('external_id')->nullable(); 			$table->string('name', 150); 			$table->string('tax_number', 20)->nullable(); 			$table->timestamps();  			$table->index(Model::CREATED_AT); 		}); 	}