feat: add public contributor profile page with projects and ratings

[Opulencechuks]

This PR closes #212

Overview

This PR introduces a public contributor profile feature accessible at /u/[username]. The new page displays a contributor’s basic profile information, a list of their approved projects, and the ratings they have given to other projects.

Key Changes

1. API Endpoints

   • /api/users/[username] – Returns public profile data (username, join date, social links, etc.).
   • /api/ratings/user/[username] – Returns all ratings submitted by the specified user.
   • Updated /api/projects to support filtering by author (username) for fetching a user’s submitted projects.

2. Frontend

   • web/src/app/u/[username]/page.tsx – New Next.js page that:
     • Fetches profile, projects, and ratings in parallel.
     • Renders a styled, animated UI showcasing:
       • Username and join date.
       • Submitted projects using existing ProjectCard component.
       • Ratings given, with project titles, scores, and dates.
   • SEO metadata added for better discoverability.

3. Supporting Files

   • Added route files for the new API endpoints.
   • Updated implementation_plan.md to reflect these changes.

Design Highlights

• Premium UI: Utilizes the app’s glassmorphism style, smooth animations, and clean typography for a polished look.
• Responsive Layout: Grid and flex utilities ensure a great experience on all screen sizes.
• Performance: Parallel data fetching reduces load times.

Testing

• Verified that the new page renders correctly for existing users.
• Confirmed that projects and ratings are correctly filtered by username.
• Ran git status and built the app locally with npm run dev – no TypeScript or runtime errors.

Impact

• Enables community members to view any contributor’s activity without authentication.
• Improves discoverability of contributors and their work, fostering engagement.

[vercel]

@Opulencechuks is attempting to deploy a commit to the webverse Team on Vercel.

A member of the Team first needs to authorize it.

[samieazubike]

Fix error