fix: Bug - Users appear as both online and offline

Align chat message sender ids with per-server presence identities so profile cards opened from message authors resolve the same live user state as the members panel.

Co-authored-by: Cursor <cursoragent@cursor.com>

toju-app/src/app/store/messages/messages.effects.ts

@@ -8,7 +8,7 @@
  * The giant `incomingMessages$` switch-case has been replaced by a
  * handler registry in `messages-incoming.handlers.ts`.
  */
-/* eslint-disable @typescript-eslint/member-ordering */
+
 import { Injectable, inject } from '@angular/core';
 import {
   Actions,
@@ -52,7 +52,9 @@ import {
 } from '../../shared-kernel';
 import { hydrateMessages } from './messages.helpers';
 import { canEditMessage } from '../../domains/chat/domain/rules/message.rules';
+import { resolveRoomMessageSenderId } from '../../domains/chat/domain/rules/message-sender-identity.rules';
 import { resolveRoomPermission } from '../../domains/access-control';
+import { SignalServerAuthService } from '../../domains/authentication/application/services/signal-server-auth.service';
 import { dispatchIncomingMessage, IncomingMessageContext } from './messages-incoming.handlers';
 import { MessageRevisionService } from '../../domains/chat/application/services/message-revision.service';
 import { materializeMessageFromRevision } from '../../domains/chat/domain/rules/message-revision.builder.rules';
@@ -76,6 +78,7 @@ export class MessagesEffects {
   private readonly platform = inject(PlatformService);
   private readonly i18n = inject(AppI18nService);
   private readonly messageRevisions = inject(MessageRevisionService);
+  private readonly signalServerAuth = inject(SignalServerAuthService);
 
   /** Loads messages for a room from the local database, hydrating reactions. */
   loadMessages$ = createEffect(() =>
@@ -238,11 +241,16 @@ export class MessagesEffects {
           return of(MessagesActions.sendMessageFailure({ error: this.i18n.instant('chat.effects.notConnectedToRoom') }));
         }
 
+        const senderId = resolveRoomMessageSenderId(
+          currentUser,
+          currentRoom.sourceUrl,
+          (serverUrl, fallbackUserId) => this.signalServerAuth.resolveActorUserIdForServer(serverUrl, fallbackUserId)
+        );
         const draftMessage: Message = {
           id: id ?? uuidv4(),
           roomId: currentRoom.id,
           channelId: channelId || 'general',
-          senderId: currentUser.id,
+          senderId,
           senderName: currentUser.displayName || currentUser.username,
           content,
           timestamp: this.timeSync.now(),