sloproxy

feat(runtime): enhance response preparation for xAI executor output controls master

- Added logic to `preserveXAIResponsesOutputControls` for retaining supported controls (`max_output_tokens`, `temperature`, `top_p`, `top_k`) during translation. - Removed unsupported fields such as `stop` where necessary to align with xAI's Responses API. - Updated tests to validate the preservation and removal of fields across various input scenarios. - Improved payload configuration handling with additional unit tests for ensuring compatibility with model-specific overrides. Closes: #4464


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2 changed files