Captures the named-transponder MVP (NTAG21x/UL EV1 done; MIFARE Classic next; then ICODE
SLIX/SLIX2/NTAG5), the UX contract (all hints in the completion dropdown, hex + binary), the
binary-mode autocomplete bug (entry._regroup_after resetting buf.document cancels the menu), and
the 15693 header-builder + per-chip-identify foundations.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>