<?php
try {
    require_once __DIR__ . '/../../tools/db.php';
    $pdo = tools_build_pdo();
} catch (Throwable $e) {
    http_response_code(500);
    header('Content-Type: application/json; charset=utf-8');
    $payload = ['error' => 'DB connection failed'];
    if (getenv('APP_DEBUG') === '1') {
        $payload['detail'] = $e->getMessage();
    }
    echo json_encode($payload, JSON_UNESCAPED_UNICODE);
    exit;
}