New features:
- Align to Slope: rotates objects to match terrain surface normal at
their position (trees on hillsides lean naturally). Works with
multi-select. Available in object panel and right-click context menu
- Batch Convert Assets: File menu option to recursively convert all
M2→WOM and WMO→WOB files in a data directory to open format
- Import & Load: one-click WCP unpack + auto-open the imported zone
- sampleTerrainNormal() for slope detection via height differencing
- Zone load error toasts for missing/corrupt files