- expose email in user search/contact responses
- add add-contact-by-email API endpoint
- show email in contacts/search and add contact form by email in Contacts tab
- move voice/audio players to single global audio engine with shared volume
- stop/reset previous track when switching to another media
- keep playback alive across chat switches via global audio element
- list refresh sessions by redis scan fallback when user session set is missing
- add user twofa fields and migration
- add 2FA setup/enable/disable endpoints
- enforce OTP on login when 2FA enabled
- add web login OTP field and settings UI
- store refresh session metadata in redis (ip/user-agent/created_at)
- add auth APIs: list sessions, revoke one, revoke all
- add web privacy UI for active sessions
- keep archived list synced while browsing chats
- add archived entry in All tab with unread count-like badge
- show loading/empty states in Archived tab
- register notifications service worker and handle click-to-open chat/message
- route realtime notifications through service worker with fallback
- support ?chat=&message= deep-link navigation in chats page
- enforce 1s minimum voice message length
- lift scroll-to-bottom button to avoid overlap with composer action
- show one action button in composer: mic when empty, send when text exists
- add floating scroll-to-bottom button in message list
- exclude non-text/media messages from Chat Info links list to avoid duplicates
- replace modal message search with header inline search controls
- add global top audio bar linked to active inline audio player
- improve chat info header variants and light theme readability
- add chat_updated realtime event and dynamic chat subscriptions
- auto-join invite links in web app
- implement Telegram-like settings panel (general/notifications/privacy)
- add browser notification preferences and keyboard send mode
- improve chat list with last message preview/time and online badge
- rework chat members UI with context actions and role crowns
- add retry logic for presigned media upload
- add retry for text send with idempotent client message id
- avoid dropping already sent media message when attachment metadata call fails
- add chat_notification_settings table and migration
- add chat notifications API (get/update muted)
- skip message notifications for muted recipients
- add mute/unmute control in chat info panel
- add websocket events user_online/user_offline
- broadcast presence changes on first connect and final disconnect only
- apply live presence updates in web chat store and realtime hook
- move public discover into unified left search (users + groups/channels)
- remove separate Discover Chats dialog/menu entry
- block send/forward in channels for member role on backend
- expose my_role in chat payload for client-side permissions
- hide message composer for channel members and show read-only notice
- hide members management sections for private/saved chats in info panel
- return enriched chat detail via serialize_chat_for_user
