* 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) --------- Co-authored-by: erai <[email protected]> Co-authored-by: Tak Hoffman <[email protected]>