backstage/.changeset/good-eggs-tell.md

@backstage/frontend-app-api

@backstage/frontend-app-api
patch

Updated error reporting and app tree resolution logic to attribute errors to the correct extension and allow app startup to proceed more optimistically:

• If an attachment fails to provide the required input data, the error is now attributed to the attachment rather than the parent extension.
• Singleton extension inputs will now only forward attachment errors if the input is required.
• Array extension inputs will now filter out failed attachments instead of failing the entire app tree resolution.