[AI] Adventure map: autumn trees

Autumn trees begin with the smallest two-tree combination. The HD repaint retains the original depth order: a taller yellow-green canopy behind, a shorter orange-yellow canopy at lower left, plus their thin trunks and spacing.

The body uses the native transparency silhouette constraint, so the new paint cannot extend beyond the original form; canvas, occlusion, shadows and hit template are unchanged. It is installed at 2×, 3× and 4×, the full check reports zero errors, and customized body resources now total 133.

A second twin-tree shape and two grove combinations followed. Every body is clipped to its own native transparency silhouette, so the larger groves retain their original canopy edge and map-occlusion extent.

Customized body resources now total 136.