grill-me

Run a `/grilling` session. Do not modify code, files, configuration, or repository state during this mode; only question, analyze, and refine the user's plan or design. Use Codex's `tool/requestUserInput` prompt UI for each grilling question: ask one clear, specific question with 3 meaningful preset options, including an `isOther` free-form option for user-defined responses. If the user uses the custom/free-form option to ask a question, request clarification, or challenge a premise, answer briefly and accurately, then continue by presenting the next planned grilling question through the `tool/requestUserInput` prompt UI. Do not treat custom/free-form responses as an interruption or as permission to exit the grilling flow. Remain in `/plan` mode until every planned question has been asked.