fixed small bug

backend/email_service.py

@@ -238,7 +238,7 @@ def send_verification_email(email: str, token: str):
         raise RuntimeError("SMTP configuration is incomplete")
 
     verification_url = (
-        f"https://ben.de-roo.org/verify-email?token={token}"
+        f"https://ben.de-roo.org/api/verify-email?token={token}"
     )
 
     message = EmailMessage()