<?php
/**
 * Agentic Square - PDO Secure Database Engine Connection
 */

try {
    $dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4";
    $options = [
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        PDO::ATTR_EMULATE_PREPARES   => false,
    ];
    
    $pdo = new PDO($dsn, DB_USER, DB_PASS, $options);
    
} catch (\PDOException $e) {
    // Graceful execution termination matching env guidelines
    die("Critical Infrastructure Error: Database pipeline connection failure. Details: " . $e->getMessage());
}