Resolve merge conflict in tsconfig.json

Add UI components and fix checkbox import issue

Add test page to help debug compilation issues

Update TaskCard to ensure correct import path

Fix signup page to handle API response properly

Fix API response structure to match what signup page expects

Add missing UI components and API files to fix build errors

Fix next.config.js to remove output: 'export' which conflicts with dynamic features

Fix tasks page to properly use the useTasks hook

Add missing Next.js configuration and layout files for proper deployment

Update vercel.json with rootDirectory setting for frontend

Correct vercel.json to properly reference frontend package.json

Update vercel.json to properly handle frontend directory

Fix vercel.json to properly reference frontend directory

Add Phase II complete files: backend API, frontend components, and configuration