refactor(logging): replace console usage with logger

services/auth/emailVerification.service.ts

@@ -4,6 +4,7 @@ import { mailgunService } from '../mailgun.service';
 import { AccountStatus } from './auth.constants';
 import { databaseService } from '../database';
 import { tokenService } from './token.service';
+import { logger } from '../logging';
 
 const TOKEN_EXPIRY_HOURS = 24;
 
@@ -32,7 +33,7 @@ export class EmailVerificationService {
         token
       );
       if (!emailSent) {
-        console.warn('Failed to send verification email');
+        logger.auth.warn('Failed to send verification email');
       }
     }