Summary

Adds a standing "Muted" column that puts everything you've muted in one place: muted users, muted threads, and muted words, under a <Tabs> filter (All / Users / Threads / Words). Fixes today's fragmentation, where users+threads lived on a Settings-only /mutes page and words lived in General Settings.

• One column, per-account scoped. Users + threads come from your kind-10000 list via useMuteList() (scoped to the column's account by <AccountScope>). supportsViewAs: false — mute management is for your own account.
• Words are global, and labeled as such. The Words tab shows your client-side muted-words list with a note: "Muted words apply to all your accounts." Same useContentPolicy() state as Settings → General, so they stay in sync.
• Reuse, not duplication. The three row UIs were extracted into src/components/Mute/ (MutedUserItem, MutedThreadItem, MutedWordsSection); the Settings muted-words manager is now a thin wrapper over the shared section.
• /mutes is now a column. The profile-menu "muted" link and the /mutes route spawn-or-focus a single deduped mute-list column (mirrors Bookmarks/Notifications), retiring the old MuteListPage secondary page (−177 lines).
• Manage inline: unmute users (+ public/private toggle), unmute threads, add/remove words.

Ships as v26.13.0 with a "What's new" entry. Picker shortcut is u (m is taken by Messages).

Implementation notes

• All 7 column-type touchpoints wired (TColumnType, dispatchBody, columnLabel, picker descriptor, migrateColumns allowlist, i18n) + the dispatch-coverage.spec.ts exhaustiveness guard.
• UsersSection lists are reactive + sorted ([...getMutePubkeys()].sort()): populates on cold-start relay load and reflects unmutes, while the stable sort prevents rows jumping when you toggle a user public↔private.
• Pure consumer-layer composition — no storage, wire, or migration changes.

Test plan

• Column picker shows a "Muted" tile (shortcut u); adding it creates an account-scoped column
• Tabs All/Users/Threads/Words filter correctly; empty states render; "All" stacks all three
• Unmute a user / toggle public-private; unmute a thread (row vanishes); add+remove a word (reflected in Settings → General too)
• Profile "muted" link opens/focuses the column without duplicating
• A freshly-added Muted column populates once your mute list loads (cold-start), and survives reload
• Arabic (Settings → Languages → العربية): tabs, headers, words note render correctly RTL

npm run build clean, 857 tests pass, lint clean.

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