chore: remove Telegram notification from contact form

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

app/api/email/route.tsx

@@ -18,61 +18,6 @@ function escapeHtml(input: string): string {
         .replace(/'/g, "'");
 }
 
-function escapeHtmlTg(input: string): string {
-    return input.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
-}
-
-async function sendTelegramNotification(data: {
-    name: string;
-    email: string;
-    subject: string;
-    message: string;
-    sentAt: string;
-}): Promise<void> {
-    const token = process.env.TELEGRAM_BOT_TOKEN;
-    const chatId = process.env.TELEGRAM_CHAT_ID;
-    if (!token || !chatId) return;
-
-    const preview = data.message.length > 400
-        ? data.message.slice(0, 400) + "…"
-        : data.message;
-
-    const text = [
-        "🔔 <b>Neue Kontaktanfrage</b>",
-        "",
-        `👤 <b>Name:</b> ${escapeHtmlTg(data.name)}`,
-        `📧 <b>Email:</b> ${escapeHtmlTg(data.email)}`,
-        `📌 <b>Betreff:</b> ${escapeHtmlTg(data.subject)}`,
-        "",
-        "💬 <b>Nachricht:</b>",
-        `<i>${escapeHtmlTg(preview)}</i>`,
-        "",
-        `🕐 <i>${escapeHtmlTg(data.sentAt)}</i>`,
-    ].join("\n");
-
-    try {
-        await fetch(`https://api.telegram.org/bot${token}/sendMessage`, {
-            method: "POST",
-            headers: { "Content-Type": "application/json" },
-            body: JSON.stringify({
-                chat_id: chatId,
-                text,
-                parse_mode: "HTML",
-                reply_markup: {
-                    inline_keyboard: [[
-                        {
-                            text: "📧 Per E-Mail antworten",
-                            url: `mailto:${data.email}?subject=${encodeURIComponent("Re: " + data.subject)}`,
-                        },
-                    ]],
-                },
-            }),
-            signal: AbortSignal.timeout(5000),
-        });
-    } catch {
-        // Never fail the contact form because of Telegram
-    }
-}
 
 function buildNotificationEmail(opts: {
     name: string;
@@ -309,9 +254,6 @@ export async function POST(request: NextRequest) {
             }
         }
 
-        // Telegram notification — fire and forget, never blocks the response
-        sendTelegramNotification({ name, email, subject, message, sentAt }).catch(() => {});
-
         // Save to DB
         try {
             await prisma.contact.create({ data: { name, email, subject, message, responded: false } });