feat: add validation for production SSH credentials in deployment workflow

backend/utils/email_sender.py

@@ -148,8 +148,8 @@ def send_reset_password_email(to_email: str, token: str) -> None:
             return
         Mail(current_app).send(msg)
         print(f"[EMAIL to {to_email}] Reset password: {reset_url}")
-    except Exception:
-        print(f"Failed to send email to {to_email}. Reset link: {reset_url}")
+    except Exception as e:
+        print(f"Failed to send email to {to_email}. Reset link: {reset_url}. exception: {e}")
 
 
 def send_pin_setup_email(to_email: str, code: str) -> None: