fetchAll( "SELECT c.id, c.user_id, c.content, c.direction, c.message_type, c.status, c.created_at, u.phone_number, u.name FROM conversations c JOIN users u ON c.user_id = u.id ORDER BY c.created_at DESC LIMIT 50" ); echo json_encode($conversations); } catch (Exception $e) { error_log("Error in get_conversations.php: " . $e->getMessage()); http_response_code(500); echo json_encode(['error' => 'Error interno del servidor']); } ?>