Show DOT# or FRN in Telegram order notifications

Reads dot_number or frn from intake_data and includes in the
notification. DOT orders show DOT#, FCC orders show FRN.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/src/routes/checkout.ts

@@ -1282,9 +1282,17 @@ export async function handlePaymentComplete(
       const discountLine = discountCents > 0
         ? `Discount: -$${(discountCents / 100).toFixed(2)} (${order.discount_code || "promo"})\n`
         : "";
+      // Show DOT# or FRN/CORES ID depending on service type
+      const intake = (typeof order.intake_data === "object" && order.intake_data) || {};
+      const dotNumber = (intake as any).dot_number || "";
+      const frn = (intake as any).frn || "";
+      const idLine = dotNumber ? `DOT#: ${dotNumber}\n`
+        : frn ? `FRN: ${frn}\n`
+        : "";
       const msg = `💰 NEW ORDER\n\n`
         + `Customer: ${customerName}\n`
         + `Email: ${customerEmail}\n`
+        + idLine
         + `Service: ${serviceName}\n`
         + `Total: $${totalDollars}\n`
         + discountLine