Adds one curated first-party image prompt template to
`prompt-templates/image/`, with a matching preview JPG under
`assets/prompt-templates/image/`.
### New template
**`infographic-otaku-dance-choreography-breakdown-gokurakujodo-16-panels.json`**
— A single vertical 2:3 poster composed as a 4x4 grid of 16 connected
square panels, forming a full choreography breakdown chart for the
famous Japanese otaku dance song 極楽浄土 (Gokuraku Jodo).
Each panel shows the same cute half-realistic anime idol girl (pink
twin-tails, sailor-collar school-idol uniform, vivid turquoise eyes)
performing one signature pose from the dance, full-body, on a pastel
pink background with:
- a small Japanese caption strip at the bottom ("両手広げ", "指さし天井",
"ハート手", … "フィナーレ"),
- a numbered circle (1–16) at the top-left corner,
- a clean 4x4 grid with thin black separators,
- an overall header reading "極楽浄土 振り付け 16連動" at the top.
The template is explicitly engineered as a POSE REFERENCE SHEET for
downstream AI video generation — every silhouette is crisp and
unambiguous, no motion lines or background clutter, identical
character across all 16 cells.
Five `{argument}` slots expose song title, romaji, character design,
background color and header text so the same chart can be restyled
for any choreographed dance song while keeping the 16-pose grid
scaffold unchanged. Tuned for `gpt-image-2`, aspect `2:3`. Category:
`Infographic` (reuses the existing enum value; no new enum).
Carries `source.repo = nexu-io/open-design`, Apache-2.0, author
`open-design contributors`.
### Verification
- `node -e "JSON.parse(require('fs').readFileSync('prompt-templates/image/<file>.json','utf8'))"` passes on the new template.
- Slug does not collide with any existing template on `main`, in the
companion Three Kingdoms PR (#207), or in the companion anime
fighting-game PR (#208).
- Preview JPG is 396 KB, comparable to the previews landed in #187.
- `aspect = 2:3` matches the underlying 1024x1536 source render and
the reference-chart layout.
### Why
The existing `Infographic` category has strong timeline/evolution
content (e.g. `3d-stone-staircase-evolution-infographic`) but no
entries aimed at **motion reference** — the one niche where a static
infographic is essentially a production tool for video/animation work.
This template plugs that gap. The 4x4 grid of pose-cells is a
genre-defining layout for dance choreography sheets (used widely for
idol dance covers on Bilibili / YouTube / TikTok) and, because every
cell is a clean, identical-character full-body silhouette on a flat
background, the sheet doubles as a **ready-to-use pose reference**
for AI video pipelines (image-to-video, pose-guided control, keyframe
choreography). One template, two jobs: a pretty poster and a working
production asset.
Co-authored-by: Tuola Ge <gexingli@refly.ai>
