fix(auth): cache user context in localstorage for offline pwa support

updation

updation

fix: refine service worker cache patterns for auth routes

converting into PWA(progressive web app)

chore: add S3 CORS setup script

fix: use S3 signed URLs for record access and download

fix: add vercel.json SPA rewrites for client-side routing

upload files functionality become active

mobile responsivee

feat: make entire website mobile responsive

fix: fallback API URL to production render backend

fix: add production API URL for Vercel build

Initial commit