public function up(): void 	{ 		Schema::create('clients', function (Blueprint $table): void { 			$table->uuid('id')->primary(); 			$table->uuid('domain_id')->nullable(); 			$table->string('country', 50)->nullable(); 			$table->string('address', 50)->nullable(); 			$table->string('zipcode', 5)->nullable(); 			$table->string('city', 50)->nullable(); 			$table->string('vat_number', 11)->nullable(); 			$table->string('contact_first_name', 50)->nullable(); 			$table->string('contact_last_name', 50)->nullable(); 			$table->string('contact_phone_number', 20)->nullable(); 			$table->string('industry', 50)->nullable(); 			$table->string('core_business', 50)->nullable(); 			$table->timestamps();  			$table->index(Model::CREATED_AT);  			$table->foreign('domain_id')->references('id')->on('domains')->cascadeOnDelete(); 		}); 	}