a1a5078e8b
If the DTM .tif exists and --force is not set, skip both ground classification and DTM generation entirely. Previously, the pipeline would spend 3+ minutes reclassifying ground even when the DTM was already present and would be reused anyway. Also includes: SharedDEM cache, enhanced WebP cartouche (compass rose, adaptive scale bar, enriched info bar), removed COG/viewer, UTF-8 fix for parallel workers, skip logic for DTM and PDF.