Migrate To ATC Github

This guide outlines the transition process from code.connected.bmw to atc-github.azure.cloud.bmw (ATC GitHub).

:::caution [Status: Under Definition] The migration framework for ATC GitHub is currently being finalized. While the strategic goal is to support transitions to atc-github.azure.cloud.bmw, the end-to-end execution process and support model are still being aligned with the responsible teams. :::