Two ephemeral packets: ConsoleTyping (client->server, 4087) relayed by
the emulator to the peer as FriendTyping (server->client, 4088). Client
sends typing-start once per burst + stop on idle/send/empty; shows
"X is typing..." with a 6s auto-expire. 1:1 only, no DB.
2-state read receipts (sent / read) via two custom packets:
MarkConsoleRead (client->server, header 4085) sent on thread focus,
relayed by the emulator to the peer as ConsoleReadReceipt (server->
client, header 4086). Client marks own messages READ and renders
checkmarks. Live-relay only (no DB table / login batch) since the
client doesn't persist message history across sessions.
Store messages to offline friends in messenger_offline (capped inbox),
replay on login via the existing FriendChatMessageComposer with an
"offline" extraData marker, and render a "sent while offline" tag in
the client thread. No new packets; emulator + small client touch.
Bite-sized TDD plan across all three codebases for the friend-groups
feature: 4 client->server category packets (renderer composers +
Arcturus handlers), DB persistence (reusing existing
messenger_categories + messenger_friendships.category), server-
authoritative re-push via existing MessengerInit/UpdateFriend
composers, and client store actions + chip-filter UI + manager modal +
per-friend assign control + pure filter helper with tests.
Bite-sized tasks with exact code blocks:
- Task 1: navigatorUiStore (TDD, 14 cases)
- Task 2: useDoorState extraction (TDD, 11 cases incl. dual-subscription filters)
- Task 3: useNavigatorStore internal closure (move all non-door listeners + new actions)
- Task 4: 3 filters + barrel rewrite + smoke test
- Tasks 5-8: 13 consumer migrations (atomic commit)
- Task 9: delete useNavigator.ts + final verification (typecheck/test/lint/manual)
Each commit is a green stopping point except Task 4 step 8 (intentional
intermediate-broken commit while consumers still import the removed
useNavigator export from the barrel). Tasks 5-8 land atomically to close
that gap in the next commit.
simoleo89