harshulchess77-arch/JC-APEX ? reverse-engineered prompt

Build me the JC APEX project as a working full stack system.

It looks like there should be a web app, a gateway service, firmware, and a database, so please wire those pieces together in a way that feels complete and usable. I want a simple dashboard where someone can see device or system status, send or receive data through the gateway, and have everything stored safely in the database. If there are missing details, make sensible choices and keep the whole thing easy to run locally and easy to deploy later.

Please also make sure the project has a clean setup flow, sensible environment variable handling, and basic security minded defaults. If you need to check current docs online for any libraries or deployment steps, go ahead. I care most that the app works end to end and feels like a real product, not a rough demo.