Vincenzo Palazzo 20c08bd860 feat: add Sonar sticker reference wire codec (PR A of #1517 split)
Pure-Swift codec for the sonar-sticker-pack-v1 wire format
(\x1Fsticker\x1F<pack-coordinate>\x1F<shortcode>\x1F<sha256>), byte-identical
to sonar-ffi, plus the wire spec doc and the reserved-not-advertised
capability bit 13 note. No behavior change: nothing parses or routes
sticker content yet (PRs B/C build on this).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-07-29 19:23:12 +02:00
..