639201cd38
The auto-laid-out Mermaid flowchart looked rough. Replace it with a hand-built Anthropic-style diagram: color-coded role cards, a dashed scene-generation group, and the speculative pre-generation loop. Each SVG bakes in a dark background so it renders consistently whether the viewer's GitHub theme is light or dark (theme is per-viewer, not per-repo). Ship one localized SVG per README (zh/en/ja) to preserve the existing per-language diagrams, and strip claude.ai artifact residue (onclick / var() / context-stroke). Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>