User Profile Page

Build a user profile page in React with TypeScript. The page loads the current user's data from /api/users/me and displays their name, email, and avatar image.

Below the profile info, show a list of the user's recent activity fetched from /api/users/me/activity.

Output

Produce TypeScript/TSX files in a src/ directory:

• src/api.ts -- API client for making requests
• src/components/UserProfile.tsx -- the main profile page component
• src/components/ActivityFeed.tsx -- component displaying recent activity items
• src/App.tsx -- app root that renders the profile page

Do not include test files or build configuration.