New version

tools/.gitkeep

@@ -1 +0,0 @@
-

tools/db.php

@@ -1,21 +0,0 @@
-<?php
-function tools_build_pdo(): PDO
-{
-    $cfg = require __DIR__ . '/../src/config.php';
-    if (!is_array($cfg)) {
-        throw new RuntimeException('DB config did not return an array.');
-    }
-    $required = ['db_host', 'db_name', 'db_user', 'db_pass', 'db_charset'];
-    foreach ($required as $key) {
-        if (!array_key_exists($key, $cfg)) {
-            throw new RuntimeException('Missing DB config key: ' . $key);
-        }
-    }
-    $dsn = "mysql:host={$cfg['db_host']};dbname={$cfg['db_name']};charset={$cfg['db_charset']}";
-    $options = [
-        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
-        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
-    ];
-
-    return new PDO($dsn, $cfg['db_user'], $cfg['db_pass'], $options);
-}

tools/printers.php

@@ -1,6 +0,0 @@
-<?php
-function tools_fetch_active_printers(PDO $pdo): array
-{
-    $stmt = $pdo->query("SELECT * FROM printers WHERE is_active = 1 ORDER BY name");
-    return $stmt->fetchAll();
-}