Qualify the official Linux CE headless launcher and engine-native item references. Record real native CLI/MCP qualification, costs, failures and integration controls. Closes #4996 Co-authored-by: gensokyo-dev <342580529+gensokyo-dev@users.noreply.github.com> Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>