x_ai: Add support for specifying reasoning effort (#58078)

See
https://docs.x.ai/developers/model-capabilities/text/reasoning#the-reasoning_effort-parameter

Closes #58056

Release Notes:

- agent: Added support for specifying reasoning effort for Grok 4.3
(xAI)
122619624dBennet Bo Fenner committed on 5/29/2026, 4:28:27 PM· committed by GitHubparent2ea99a8
2 files changedLine totals unavailable