Consolidates #4162 + #3944. Aux path: skip the reasoning-disable inject for
routes that 400 on it via _route_rejects_reasoning_extra — hostname-matched
OpenAI / Azure OpenAI / Azure AI Foundry (+ provider aliases openai*/azure*/
azure-foundry/azure-ai*) and OpenRouter Anthropic mandatory-reasoning; keep it
for local/OpenRouter-non-anthropic/other reasoning routes (#4161). Agent path:
rely on the existing agent.reasoning_config={enabled:False} + _build_api_kwargs()
(route-correct per provider profile) rather than re-injecting a generic disable
on top of it; only MiniMax reasoning_split is added (unchanged from master).
Co-authored-by: Rod Boev <rod.boev@gmail.com>
Rod Boev
bc5fceb88a