refactor(nestjs): authentication

packages/server-nest/src/common/config/index.ts

@@ -11,6 +11,7 @@ import stripePayment from './stripe-payment';
 import signupConfirmation from './signup-confirmation';
 import signupRestrictions from './signup-restrictions';
 import jwt from './jwt';
+import mail from './mail';
 
 export const config = [
   systemDatabase,
@@ -26,4 +27,5 @@ export const config = [
   signupConfirmation,
   signupRestrictions,
   jwt,
+  mail
 ];