query("SELECT COUNT(*) FROM procurement_items")->fetchColumn();
$totalBudget = $pdo->query("SELECT SUM(total_price) FROM procurement_items")->fetchColumn();
$actualSpent = $pdo->query("SELECT SUM(procured_price) FROM procurement_items WHERE status='ดำเนินการเสร็จสิ้น'")->fetchColumn();
$savings = $totalBudget - $actualSpent;
// สรุปตามสถานะ
$statusCounts = $pdo->query("SELECT status, COUNT(*) as cnt, SUM(total_price) as sum_price FROM procurement_items GROUP BY status")->fetchAll();
?>