49deece835
* feat(reasoning): add special handling for Grok 4 fast models * feat(models): add grok4_fast model and refine grok reasoning * feat(reasoning): unify Grok reasoning handling and XAI params * feat(models): Grok/qwen handling and XAI * feat(models): recognize qwen3-vl thinking models and add sizes * fix(reasoning): reasoning enabled for QwenAlwaysThink models * feat(reasoning): enable reasoning for Grok 4 Fast models * fix(reasoning): rename and correct Grok 4 Fast model checks * fix: adjust Grok-4 Fast reasoning detection for OpenRouter * fix(reasoning): exclude non-reasoning models from reasoning detection