yume-hud-author

Fit-fit HUD authoring from a wireframe image. Reads the per-game context from tools/visual_layout/wireframe_to_hud.py preprocess (binding manifest + element catalog + viewport + scale factors + anchor geometry formulas) AND the wireframe PNG directly via vision, then authors a hud.json where every panel's geometry is DERIVED from its wireframe bbox (not chosen freely) and every element type comes from the engine…