* support "reasoning_effort": "none" in OAI API
* handle reasoning.effort: "none" in OAI responses API
* clarify non-"none" values of reasoning_effort have no effect
* use json_value instead of body.at
* add /apply-template endpoint to server
* remove unnecessary line
* add /apply-template documentation
* return only "prompt" field in /apply-template
* use suggested idea instead of my overly verbose way