Parser enhancements:
- Add SUITE_PATTERNS: extract Suite, Ste, STE (case-insensitive)
- Add ROOM_PATTERNS: extract Room, RM, Mailroom, Showroom, etc.
- Add TRAILER_PATTERNS: extract Trailer, TRLR, MASH, Safari, etc.
- Add _extract_suite(), _extract_room(), _extract_trailer() functions
- Update _parse_pattern_a() to extract and strip new fields
- Update parse_place() result dict to include suite/room/trailer
- Add correct_class_by_machine_id() post-processing:
- Bev model in Bev ID range with Snack class → fix to Bev
- Unknown class in 9x range → set to Bev
- Unknown class in 6x-7x range → set to Snack
- Update parse_excel() to include new fields and apply correction
DB writer:
- Add suite, room, trailer to ALL_COLUMNS and COLUMN_TYPES
- Add ALTER TABLE migration for existing databases
- Fix backup.py PRESERVED_FIELDS column names (lat/lng -> latitude/longitude)
to match actual DB schema (pre-existing bug)
- Add backup_gps() and restore_gps() dedicated GPS-only functions
- Add /api/gps/backup and /api/gps/restore API endpoints
- Add /api/gps/restore/upload for restoring from uploaded backup files
- Add /api/db/wipe endpoint to clear all asset records
- Update UI with GPS-only Backup button, Restore GPS from File picker,
and Wipe All Assets with double-confirmation dialog
- Fix backup listing to scan both seed-data/ and project root
shawn