Generate a single image-based slide YAML for this project using the local seven-stage prompt assembly structure instead of a generic deck format. Use when the user asks to generate, draft, convert, rewrite, or randomize an image slide YAML, prompt YAML, or presentation YAML for Image2 in this repo; when the user provides reference notes, source text, or slide intent and wants it turned into YAML; or when Codex must choose a suitable local layout, theme, and design approach from `prompt_system/` and output the result in the project's seven-stage format.
