fix: multiple bug fixes

isolated users, db backup, weird disconnect issues for long voice sessions,

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

@@ -23,6 +23,7 @@ import {
   switchMap
 } from 'rxjs/operators';
 import { v4 as uuidv4 } from 'uuid';
+import { MessagesActions } from '../messages/messages.actions';
 import { UsersActions } from './users.actions';
 import { RoomsActions } from '../rooms/rooms.actions';
 import {
@@ -46,6 +47,9 @@ import {
   Room,
   User
 } from '../../shared-kernel';
+import {
+  setStoredCurrentUserId
+} from '../../core/storage/current-user-storage';
 import { findRoomMember, removeRoomMember } from '../rooms/room-members.helpers';
 
 type IncomingModerationExtraAction =
@@ -65,6 +69,27 @@ export class UsersEffects {
   private serverDirectory = inject(ServerDirectoryFacade);
   private webrtc = inject(RealtimeSessionFacade);
 
+  /** Prepares persisted state for a successful login before exposing the user in-memory. */
+  authenticateUser$ = createEffect(() =>
+    this.actions$.pipe(
+      ofType(UsersActions.authenticateUser),
+      switchMap(({ user }) =>
+        from(this.prepareAuthenticatedUserStorage(user.id)).pipe(
+          mergeMap(() => [
+            MessagesActions.clearMessages(),
+            UsersActions.resetUsersState(),
+            RoomsActions.resetRoomsState(),
+            UsersActions.setCurrentUser({ user }),
+            RoomsActions.loadRooms()
+          ]),
+          catchError((error: Error) =>
+            of(UsersActions.loadCurrentUserFailure({ error: error.message || 'Failed to prepare local user state.' }))
+          )
+        )
+      )
+    )
+  );
+
   // Load current user from storage
   /** Loads the persisted current user from the local database on startup. */
   loadCurrentUser$ = createEffect(() =>
@@ -124,6 +149,11 @@ export class UsersEffects {
     };
   }
 
+  private async prepareAuthenticatedUserStorage(userId: string): Promise<void> {
+    setStoredCurrentUserId(userId);
+    await this.db.initialize();
+  }
+
   /** Loads all users associated with a specific room from the local database. */
   loadRoomUsers$ = createEffect(() =>
     this.actions$.pipe(