fix: use Cloudflare Worker relay for Telegram, fix phone format

- contact.php: route Telegram API via tg-relay.it-resheniya-2018.workers.dev
- translations: fix phone format (909) 945-44-56 -> +7 909 945-44-56

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/api/contact.php

@@ -39,7 +39,7 @@ if ($email) $text .= "📧 <b>Email:</b> {$email}\n";
 $text .= "\n💬 <b>Сообщение:</b>\n{$message}\n";
 $text .= "\n⏰ " . date('d.m.Y H:i', time() + 3 * 3600) . " MSK";
 
-$ch = curl_init("https://api.telegram.org/bot{$BOT_TOKEN}/sendMessage");
+$ch = curl_init("https://tg-relay.it-resheniya-2018.workers.dev/bot{$BOT_TOKEN}/sendMessage");
 curl_setopt_array($ch, [
     CURLOPT_POST           => true,
     CURLOPT_POSTFIELDS     => json_encode(['chat_id' => $CHAT_ID, 'text' => $text, 'parse_mode' => 'HTML']),