Envision platform - envision-api placeholder

If you are reading this, a request reached App Service trsaas-api.

This confirms the inbound path: DNS → Front Door → WAF → Private Link → this app.

Placeholder content only. No Envision application code is deployed here. This single static file exists so the Front Door health probe returns 200 and the end-to-end path can be verified. Remove it when the real application is deployed.