Add support for running a recipe on k8s cluster

[ronenkat]

PLEASE FILL IN THE PR DESCRIPTION AND MAKE SURE THE CHECKLIST ITEMS HAVE BEEN CONSIDERED.

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• Closing keyword, only if fully resolved: Closes #

Scope

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Implementation Notes

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Docs Impact

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Essential PR Checklist

• Purpose is clear and linked to public context when possible.
• Scope is bounded.
• Compatibility with vLLM v0.26.0 is considered.
• No changes are made to the vLLM source checkout.
• Plugin-owned classes or explicit dotted class paths are preferred over monkey patches.
• Any compat shim or monkey patch is isolated, idempotent, version-guarded, documented, and tested.
• Imports remain CPU-safe; CUDA-heavy work is delayed or GPU-gated.
• Validation evidence is included, including skipped GPU tests when applicable.
• Documentation impact is stated.