feat: wire GHL webhook to Resend email templates

- Replace raw Resend text emails with sendMail using Resend templates
- automated-user-registration template: firstName, tempPassword,
  verifyUrl, loginUrl
- license-key-delivery template: firstName, license_key
- Remove requestPasswordReset call (temp password is the one-time
  credential; verification link handles email confirmation)
- Add .catch() to Better Auth email callbacks to prevent unhandled
  rejections from missing templates crashing the server

src/lib/generated/prisma/enums.ts

@@ -1,15 +1,12 @@
-
 /* !!! This is code generated by Prisma. Do not edit directly. !!! */
 /* eslint-disable */
 // biome-ignore-all lint: generated file
-// @ts-nocheck 
+// @ts-nocheck
 /*
-* This file exports all enum related types from the schema.
-*
-* 🟢 You can import this file directly.
-*/
-
-
+ * This file exports all enum related types from the schema.
+ *
+ * 🟢 You can import this file directly.
+ */
 
 // This file is empty because there are no enums in the schema.
-export {}
+export {};