Imports were done via import_snapeda.py for the SnapEDA parts and the new
scripts/import_ultralibrarian.py for XTAC5212IRGER (UltraLibrarian export),
mirroring import_snapeda.py but handling UL's timestamp-named symbol files
and its multiple pad-size footprint variants (nominal/-L/-M).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>