feat(mentions): inbox window, toolbar badge, chat-history tab, ui-config + i18n

src/nitro-renderer.mock.ts

@@ -251,6 +251,11 @@ export class FlatAccessDeniedMessageEvent extends MessageEvent {}
 export class GenericErrorEvent extends MessageEvent {}
 export class GetGuestRoomResultEvent extends MessageEvent {}
 
+// Mentions system — incoming events extend MessageEvent (they expose
+// getParser()); the request/mark composers are symbol-only constructors.
+export class MentionReceivedEvent extends MessageEvent {}
+export class MentionsListEvent extends MessageEvent {}
+
 // ---------------------------------------------------------------------------
 // Navigator event classes — MessageEvent subclasses needed by useNavigatorStore
 // ---------------------------------------------------------------------------
@@ -377,6 +382,8 @@ export class FollowFriendMessageComposer extends StubClass {}
 export class GetUserEventCatsMessageComposer extends StubClass {}
 export class GetUserFlatCatsMessageComposer extends StubClass {}
 export class NavigatorSearchComposer extends StubClass {}
+export class RequestMentionsComposer extends StubClass {}
+export class MarkMentionsReadComposer extends StubClass {}
 export class DesktopViewComposer extends StubClass {}
 export class FurniturePlacePaintComposer extends StubClass {}
 export class GetGuestRoomMessageComposer extends StubClass {}