chore: add catalog-info.yaml

[czirker]

Summary

• Adds missing catalog-info.yaml

Task Reference

• Jira: https://chb.atlassian.net/browse/ES-2712

Made with Cursor

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Note

Low Risk
Low risk: adds only Backstage catalog metadata and does not change runtime code or behavior.

Overview
Adds a new Backstage catalog-info.yaml that registers serverless-leo as a production library component, including ownership (cup-shared-services), GitHub slug annotation, TechDocs reference (dir:.), and descriptive tags.

^{Written by Cursor Bugbot for commit 70c37b6. This will update automatically on new commits. Configure here.}

[ch-snyk-sa]

✅ Snyk checks have passed. No issues have been found so far.

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✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues
✅	Code Security	0	0	0	0	0 issues

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