WIP: PoC Backend: Expose an endpoint to fetch all annotations

Closed Mikołaj Wawrzyniak requested to merge mwaw/poc_fetch_annotations_graphql into master

What does this MR do?

This is PoC from #211330 (closed)

Screenshots

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

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  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team