Function reasoning_effort_support 

pub fn reasoning_effort_support(caps: &Option<TemplateCaps>) -> Support

Whether a model’s template reads reasoning_effort, from its recorded caps.

Support::Unknown both when no caps were ever recorded (None — the tri-state’s “never observed”) and when the recorded caps did not carry the field. Only an explicit false answers Support::No — the arm ADR 0007’s suppression (a later PR) is allowed to act on.