Files
amethyst/commons/src/commonMain
Claude abc6732286 feat: support NIP-51 mute-list hashtag ("t") entries
NIP-51's kind:10000 mute list defines four entry types — `p` (pubkeys),
`word`, `e` (threads) and `t` (hashtags). Quartz parsed only the first
three, so `t` hashtag mutes written by other clients were silently
dropped: uncounted, invisible, and never applied to filtering.

Quartz:
- Add HashtagTag (`"t"`) implementing the MuteTag sealed interface, and
  register it in MuteTag.parse/isTagged so it round-trips like the other
  entry types.
- Add mutedHashtags()/mutedHashtagIds() TagArray helpers.

Filtering (commons):
- Add hiddenHashtags to LiveHiddenUsers plus isHashtagHidden(), and hide
  notes carrying a muted hashtag in Note.isHiddenFor() (exact, case-
  insensitive `t`-tag match — distinct from the existing substring word
  scan).

Amethyst:
- Aggregate HashtagTag entries from the mute/block lists in
  HiddenUsersState.
- MuteListState.hideHashtag/showHashtag + Account and AccountViewModel
  wrappers, and observeUserIsMutingHashtag.
- Surface a Mute/Unmute hashtag action in the hashtag screen's options
  overflow menu.

Tests: HashtagTagTest (parse/round-trip/MuteTag dispatch) and
NoteIsHiddenForTest cases for muted-hashtag hiding.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017giudm3gXumsxZmd3uMQc8
2026-07-16 01:51:48 +00:00
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