Remove Redundant Shadcn UI Imports - Next.js

Analyze src/components/* for unused Shadcn UI imports (e.g., Button, Card) in a Next.js project. Remove them and update components to use minimal imports. Ensure TypeScript compatibility, Tailwind CSS styling, and Supabase auth integration. Maintain SEO metadata and responsiveness. Run npm run build to verify reduced bundle size and npm test to ensure functionality. Log removed imports for review.