refactor: migrate RoomView to a function component - #7482

…ved to useIsArchived (NATIVE-22)

* test: lock the send contract in the useRoomMessaging tests

* refactor: inline sendRoomMessage into useRoomMessaging

…7666)

* refactor: pass composer roomTitle and t as scalars instead of room

ComposerStore no longer mirrors room/roomUpdate. RoomScreen and ShareView
compute roomTitle via getRoomTitle and pass it alongside t through
RoomProviders/ComposerProvider. useComposerRoom is removed in favor of
useComposerRoomTitle and useComposerType.

* refactor(room-store): observe the subscription record directly, publish every emission

Find the subscription row once by rid, observe it with room.observe() when present,
or fall back to a query observable until a row appears. Every emission now reaches
setState unconditionally. On record destruction, joined flips to false for non-DM
rooms. subscribed is removed from RoomState.

* refactor(room-view): derive livechat on-hold agent check in selector

Remove lastMessageFromAgent from RoomStore; useCanPlaceLivechatOnHold now computes it from room.t, room.lastMessage and room.onHold.

* refactor(room-view): select scalar fields in header and right buttons instead of the whole room

* refactor(room-footer): select scalar room fields instead of the whole room

TakeOrJoin, useFooterMessage, useRoomFooterState, RoomAnnouncementBanner,
useReadOnly and useE2EEStatus now select the fields they use (t, onHold,
ro, roles, encrypted, E2EKey, announcement, bannerClosed, and helper
outputs like isBlocked/isRoomFederated) instead of subscribing to the
whole room. useCloseBanner takes the RoomStore and reads room
imperatively at call time instead of receiving it as a prop.

* refactor: select room fields instead of whole room in message list/row/actions

RoomMessageList, MessageRow, RoomMessageActions, the message handlers hook
and the thread badge color hook now select only the room fields they need
from RoomStore, since a whole-room selector never re-renders (WatermelonDB
mutates the same model instance in place). callJitsi now reads
getState().room imperatively at call time instead of closing over a
rendered room.

* refactor(room-view): delete whole-room snapshot machinery

RoomStore now publishes the live room on every observe() emission with
no diffing. roomUpdate, roomObservedFields, the observed column map,
useRoomWithUpdateFromStore and useRoomWithUpdate are gone; every
RoomView reader already selects the fields it needs. RoomScreen and
RoomGate no longer hold a whole-room selector.

* fix(room-view): address review findings on scalar-selector migration

Kill the last whole-room render reads in useGoRoomActionsView and
LeftButtons (the latter was genuinely stale on rename), narrow
RoomGate's invite/encrypted-room props, drop the unused subscription
field from useSubscriptionUnreads, guard RoomStore's synchronous-emission
race in observeQueryUntilPresent, and make ComposerState.roomTitle
required.

* fix(room-view): drop the comment and var trick from the RoomStore race fix

Use a subscribed flag set after subscribe() returns instead of var
hoisting, so the callback never touches the subscription binding
before it's safely assigned.

* fix(room-view): select badge colors and simplify room observation

* fix(room-view): narrow room instead of casting in the header selector

The selector cast `room` to `ISubscription` and then read subscription-only
fields off it, reachable with the preview-room literal that has none of them.
Narrow once through the same `'id' in room` check the selector already uses.

* test(database): pin Subscription @JSON reference stability

RoomStore's field selectors compare @JSON references across observe() emits,
which holds only while the columns keep WatermelonDB's memo option. Dropping
it from the model fails 16 of these assertions.

* refactor(room-view): room predicates, membership tri-state and observable test helper

Add a shared BehaviorSubject-backed test helper for database.active so the
RoomStore, room-and-thread screens, MessageRow and messages list suites stop
hand-rolling observe fakes.

Replace the structural `in` checks on a room with isSubscriptionModel and
isPreviewRoom, drop `status` from TPreviewRoom, and narrow before reading
presence in the header.

Replace the boolean `joined` on RoomState with a RoomMembership tri-state of
preview, invited and subscribed. RoomGate now selects a single nullable
invitation. RoomFooter renders once the store is ready, so a subscribed room
no longer flashes the join footer while its subscription row is still being
looked up.

Match only WatermelonDB's not-found error as an absent row and log anything
else, still falling back to preview mode.

* docs(context): add Room Membership to the glossary

* perf(room-view): memoize MessageRow

* fix(message): derive separators inside MessageProvider

MessageRow is memoized, but WatermelonDB mutates records in place. A message
sent before midnight and confirmed after it keeps the same record identity, so
the memo skipped the re-render and the date separator stayed stale.

Move the derivation into MessageProvider, which already subscribes both the
message and the previous message to the same tick. MessageRow keeps calling the
shared getMessageSeparators for the LoadMore branch, which sits outside the
provider.

* test: prove RoomMessageActions sheet handle attachment

* refactor: pass RoomMessageActions refs directly

* test: reuse typed store factories in RoomMessageActions test

#7678)

* chore: drop unused reassure devDependency

* test(MessageComposer): rename media transfer ownership suite after its component

* test(RoomView): move observableDatabase helper out of __tests__

… openThread/openRoom services (#7679)

Rename the hook to useJumpToMessage to match the CONTEXT.md Positional State row.
Move Thread and Room opening into plain async services with explicit deps.
Isolate route-param consumption in a non-exported helper hook so the
generation counter has a single owner. Behavior and public surface unchanged;
the three existing suites pass with only import renames.

NATIVE-1550