v10 was created by restoring v8

I'll help you create a profile and settings page with LINE login and username modification. Let me first examine the current navigation structure.

Now let me examine the current profile content to understand the existing implementation and modify it for LINE login with username editing.

Now I'll modify the profile content to use LINE login and add username editing functionality. I'll also need to create a user context to share the username with the homepage greeting.

Now I need to update the homepage greeting to use the username from the user context. Let me first read the scroll summary component to see how it's currently implemented.

Now I'll update the scroll summary component to use the username from the user context instead of the hardcoded "Alexey".

I've successfully implemented LINE login functionality and connected the username to the homepage greeting. The system now uses a React context to share user state across components, allowing the username to appear in the homepage greeting when logged in, and defaulting to "Username" when not logged in. Users can also edit their username through the profile page, and all changes are reflected immediately in the greeting.