Architecture overview is now available

A new architecture overview is now available in the docs to explain the public platform model for SGEN. It introduces the shared platform foundation, site-aware behavior, environment separation, release flow, and the operating boundaries readers should understand first.

The page is written for public documentation, so it focuses on the system model rather than internal implementation detail. That makes it useful for stakeholders, product readers, and technical teams without exposing operationally sensitive information.

This gives SGEN a stronger technical orientation layer and helps position the platform in a more grounded way.