yume-screen-author

Fit-fit SCREEN authoring from a wireframe image — for modal/full-cover UIs declared in screens.json (inventory, pause, settings, title menu, ending screens, ...). Sibling of yume-hud-author. Reads the per-game context from tools/visual_layout/wireframe_to_screen.py preprocess (broader 13-element catalog including interactive button/slider/checkbox + transition_screen target allow-list + effect allow-list) AND the…