* fix(tools): correct Grok response parsing for xAI Responses API
The xAI Responses API returns content in output[0].content[0].text,
not in output_text field. Updated GrokSearchResponse type and
runGrokSearch to extract content from the correct path.
Fixes the 'No response' issue when using Grok web search.
* fix(tools): harden Grok web_search parsing (#13049) (thanks @ereid7)
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Co-authored-by: erai <[email protected]>
Co-authored-by: Tak Hoffman <[email protected]>
