- Crash on raw hex: reader raw() returns `data` as a hex STRING; the raw
path fed that to bytes() -> "string argument without an encoding".
_raw_exchange now returns the bytes (`raw` field, or converts `data`);
render_exchange accepts bytes or a hex string.
- Completion for numeric entry, transponder-dependent: typing hex ("60")
or binary ("01100000") now matches the identified tag's command opcodes
and surfaces the named command (GET_VERSION) with its help. Honours a
0x/0b prefix and the current entry mode.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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