337c05849b
* fix: use 'max' instead of 'xhigh' as highest reasoning effort for Anthropic models on Kilo Gateway Anthropic's native effort levels are low/medium/high/max, not xhigh. The upstream merge replaced the Kilo-specific effort mapping with OPENAI_EFFORTS which uses xhigh. This restores 'max' as the user-facing variant name while mapping it to 'xhigh' on the wire for OpenRouter API compatibility. * fix: clarify comment about OpenRouter effort naming vs Anthropic naming