avtive1/Linq-by-avtive ? reverse-engineered prompt

Build me a Next.js app for managing attendee records and generating secure attendee cards.

I want a clean web app where I can add, view, and update attendees, keep sensitive fields protected, and make it easy to verify an attendee’s card with a signed token. Please include a simple dashboard, basic forms, and a polished responsive UI. Use the existing database setup and make sure the app supports tenant aware data handling, since the tests mention tenant isolation.

Security matters here, so please wire in the encryption and token signing flow described in the docs, and make it clear which environment variables are needed. If anything is unclear, check the existing docs and look up current Next.js guidance online if you need to. Also make sure the app has sensible tests, and that the main page works nicely from the start with a modern, production ready feel.