$data = json_decode(file_get_contents("php://input"), true);

$stmt = $pdo->prepare("
  INSERT INTO questions (category, optionA, optionB, origin, active)
  VALUES (?, ?, ?, 'user', 0)   -- admin validates later
");
$stmt->execute([$data['category'], $data['A'], $data['B']]);

echo json_encode(["status" => "ok"]);