مجتمعات المجموعات الضخمة

Public communities with channels and categories — Discord-style structure

Massive memberships: per-instance broadcast fan-out, not per-member

Mentions (member / @everyone) with mention history

Per-channel unread badges (real-time) and per-channel mute

Offline push only on mentions — no notification storms

Roles, mute, kick, ownership transfer + community discovery