Migrate the Replit-hosted web app into a cross-platform desktop application built with Electron and React, supporting local installation and offline execution for windows

The Replit web app is migrated into a fully offline, locally installable Windows desktop application using Electron and React, with bundled backend, database, and assets—requiring zero internet connectivity after installation.

Convert an existing Replit-hosted web application into a standalone Windows desktop application (EXE) that:

Runs fully offline

Installs locally with a desktop icon

Uses Electron for desktop shell

Uses React for UI

Uses local backend + local storage

Requires no internet connection after installation