HD-S01 leaves (Round 15 SMALL FIX)
- HD-S01_leaves_atlas_16_1024.png : 4×4 billboards, 16 variants
  rain tree (pinnate) + terminalia/榄仁 (ovate wavy); green/yellow/brown; 4–12 cm
- HD-S01_leaves_scatter_tile_1m_1024.png : 1 m seamless scatter (toroidal stamps, NO mirror)
BC only; N/R/AO not in this drop (§16.9 code may derive).