New tab lets users explore extracted assets visually: BLP textures
rendered via blp_convert+Pillow, M2/WMO wireframes with mouse-drag
rotation and zoom, DBC/CSV tables with named columns from
dbc_layouts.json, ADT heightmap grids, text file viewer, audio
metadata, and hex dumps. Directory tree lazy-loads from manifest.json
with search and file-type filtering.
Cover all new features: cancel extraction, background override rebuild,
zip-slip protection, extractor auto-detection order, readonly dropdowns,
and selection preservation. Reorganize into per-tab sections with tables.
