Most of this is just gpt slop

src/libs/DB/PDOProvider.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace WireDAV\DB;
+
+use PDO;
+use PDOException;
+use RuntimeException;
+
+class PDOProvider
+{
+    /**
+     * Creates and returns a PDO instance with configured DB connection.
+     *
+     * @return PDO
+     * @throws RuntimeException on connection failure
+     */
+    public static function getPDO(): PDO
+    {
+        $dbHost = getenv('DB_HOST') ?: 'localhost';
+        $dbPort = getenv('DB_PORT') ?: '3306';
+        $dbName = getenv('DB_NAME') ?: 'sabredav';
+        $dbUser = getenv('DB_USER') ?: 'sabreuser';
+        $dbPass = getenv('DB_PASS') ?: 'sabrepass';
+        $charset = 'utf8mb4';
+
+        $dsn = "mysql:host=$dbHost;port=$dbPort;dbname=$dbName;charset=$charset";
+
+        $options = [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES   => false,
+        ];
+
+        try {
+            return new PDO($dsn, $dbUser, $dbPass, $options);
+        } catch (PDOException $e) {
+            throw new RuntimeException('Database connection failed: ' . $e->getMessage());
+        }
+    }
+}
+