helmdeck-hyperframes-authoring

Author render-deterministic hyperframes compositions. Use when generating HTML/CSS/JS for hyperframes.compose, hyperframes.render, or any pipeline that produces a programmatic MP4 via hyperframes — including builtin.scaffolded-narrated-video, builtin.prompt-video, builtin.prompt-narrated-video. The framework's "render ≠ preview" bug class means many natural-looking compositions render as a near-blank canvas; this…