chore(release): obfuscate and hash production assets [skip ci]

scripts/test-email.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * HexaHost.de E-Mail Test (nur CLI oder lokale Entwicklung)
+ */
+
+if (PHP_SAPI !== 'cli') {
+    $remoteAddr = $_SERVER['REMOTE_ADDR'] ?? '';
+    $isLocal = in_array($remoteAddr, ['127.0.0.1', '::1'], true)
+        || filter_var($remoteAddr, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) === false;
+
+    if (!$isLocal) {
+        http_response_code(403);
+        exit('Forbidden');
+    }
+}
+
+require_once __DIR__ . '/../backend/config/mail-config.php';
+
+function testEmail() {
+    $config = getHexaHostConfig();
+
+    $subject = '[HexaHost.de] Test-E-Mail';
+    $message = "Test-E-Mail von HexaHost.de\n\n";
+    $message .= "Zeitstempel: " . date('d.m.Y H:i:s') . "\n";
+
+    $headers = [
+        'From: ' . $config['from_name'] . ' <' . $config['from_email'] . '>',
+        'MIME-Version: 1.0',
+        'Content-Type: text/plain; charset=UTF-8',
+        'X-Mailer: HexaHost Test Email',
+    ];
+
+    return mail($config['to_email'], $subject, $message, implode("\r\n", $headers));
+}
+
+if (PHP_SAPI === 'cli') {
+    echo testEmail() ? "Test-E-Mail gesendet.\n" : "Fehler beim Senden.\n";
+    exit;
+}
+
+if (isset($_GET['test'])) {
+    echo testEmail()
+        ? 'Test-E-Mail wurde gesendet.'
+        : 'Fehler beim Senden der Test-E-Mail.';
+} else {
+    echo '<h1>HexaHost.de E-Mail Test</h1>';
+    echo '<p><a href="?test=1">Test-E-Mail senden</a></p>';
+}