Bundle all per-image modalities (depth, edge, chm, segm) into a single .safetensors file for fast training DataLoader reads (~0.1ms zero-copy mmap vs ~5ms for 4x PNG). Adds consolidate stage after main pipeline stages, save_safetensors/cleanup_npy config flags, resume support, and 10 new tests. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>