ci: sync sample catalog from foundry-samples (template/stable)

[foundry-toolkit-sync-bot]

Summary

This automated draft PR updates samples/hosted-agent/sample-catalog.json by scanning
the microsoft-foundry/foundry-samples repository for hosted-agent sample templates.

What changed

• New templates added or removed based on the upstream repo structure.
• commitSha pinned to the upstream commit supplied via the commit_sha workflow input.
• requiresModel and protocol values re-derived from each sample's agent.yaml.
• displayName derived from each template's folder name; description LLM-generated when empty.
• PM-edited displayName and description values are preserved from the previous catalog.

Reviewer Checks

• Confirm new templates have correct language, framework, and protocol values.
• Review the auto-generated description for any new templates.
• Confirm no PM-edited display fields were accidentally lost.

[Yimin-Jin]

Closing as superseded during catalog cleanup. This July 7 snapshot retains only 2 templates and removes 89 from its original base; it contains no new templates or field improvements. Current template/stable already publishes the newer 105-template / 50-card snapshot at sample revision 3d734b93b66f163bea9886d73c6808adc32e68fc. No data from this obsolete snapshot is being published; future updates should be generated from the current workflow.