Gautam-S-N/Kvb-crm ? reverse-engineered prompt

Build me a simple CRM web app for the KVB team that can store and manage customer details in one place. I want a clean login protected dashboard where users can add, view, edit, and search customer records, and keep the data saved in the database that comes with the project. Please wire up the frontend and backend so the app actually works end to end, and use the existing SQL file if that helps set up the database structure.

Make it feel like a practical office tool, easy to use, with a straightforward layout for daily work. If there are any missing pieces in the current code, fill them in so the app runs properly from a fresh setup. Keep the code organized and readable, and if you need current docs for anything, look them up online before you implement it.