subs.find() can return undefined if the selected subscription ID does not match any enabled subscription. Replace the unsafe non-null assertion with an explicit guard and descriptive error.
Co-authored-by: oliviareid-svg <oliviareid@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* Microsoft Foundry: add native provider
* Microsoft Foundry: tighten review fixes
* Microsoft Foundry: enable by default
* Microsoft Foundry: stabilize API routing