Remove unauthenticated /send email endpoint

src/lib/server/resend.ts

@@ -26,7 +26,7 @@ function getResend(): Resend {
  * @example
  *   await sendMail({
  *     to: 'jane@example.com',
- *     templateId: 'tmpl_abc123',           // optional — defaults to RESEND_TEMPLATE_ID
+ *     templateId: 'tmpl_abc123',           // required — Resend template id or alias
  *     subject: 'Your license key is ready', // optional — defaults to 'Template Email'
  *     data: {                                // optional — template variables
  *       firstName: 'Jane',
@@ -40,7 +40,7 @@ function getResend(): Resend {
 export async function sendMail(options: {
 	to: string;
 	subject?: string;
-	templateId?: string;
+	templateId: string;
 	data?: Record<string, string | number>;
 }) {
 	const { to, subject, templateId, data } = options;
@@ -50,7 +50,7 @@ export async function sendMail(options: {
 		to: [to],
 		subject: subject ?? 'Template Email',
 		template: {
-			id: templateId ?? env.RESEND_TEMPLATE_ID,
+			id: templateId,
 			variables: data ?? {}
 		}
 	});