Missing file prevents magic link login

[alexpeev9]

In the main branch, the file app/auth/confirm/route.ts is missing. This file exists in the dev branch and is necessary for the magic link functionality to work properly. However, the README.md in the main branch includes instructions that assume the presence of this file, leading to errors when trying to use the feature as described.

Suggested Fix:
Merge app/auth/confirm/route.ts from the dev branch into the main branch to resolve this issue and restore full functionality of the magic link feature.