test(stalker): cover route playlist fallback paths

libs/portal/stalker/feature/src/lib/stalker-workspace-route-session.service.spec.ts

@@ -1,7 +1,7 @@
 import { signal } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
 import { NavigationEnd, Router } from '@angular/router';
-import { Subject, of } from 'rxjs';
+import { EMPTY, Subject, of } from 'rxjs';
 import { PlaylistContextFacade } from '@iptvnator/playlist/shared/util';
 import { StalkerStore } from '@iptvnator/portal/stalker/data-access';
 import { PlaylistsService } from '@iptvnator/services';
@@ -173,4 +173,31 @@ describe('StalkerWorkspaceRouteSession', () => {
             FULL_STALKER_PLAYLIST
         );
     });
+
+    it('falls back to the active playlist when the full playlist lookup completes empty', async () => {
+        activePlaylist.set(ACTIVE_PLAYLIST);
+        playlistsService.getPlaylistById.mockReturnValue(EMPTY);
+
+        TestBed.inject(StalkerWorkspaceRouteSession);
+        await flushEffects();
+
+        expect(playlistsService.getPlaylistById).toHaveBeenCalledWith(
+            PLAYLIST_ID
+        );
+        expect(stalkerStore.setCurrentPlaylist).toHaveBeenCalledWith(
+            ACTIVE_PLAYLIST
+        );
+    });
+
+    it('uses active Stalker playlist metadata directly when the portal mode is explicit', async () => {
+        activePlaylist.set(FULL_STALKER_PLAYLIST);
+
+        TestBed.inject(StalkerWorkspaceRouteSession);
+        await flushEffects();
+
+        expect(playlistsService.getPlaylistById).not.toHaveBeenCalled();
+        expect(stalkerStore.setCurrentPlaylist).toHaveBeenCalledWith(
+            FULL_STALKER_PLAYLIST
+        );
+    });
 });

libs/portal/stalker/feature/src/lib/stalker-workspace-route-session.service.ts

@@ -113,13 +113,12 @@ export class StalkerWorkspaceRouteSession {
             return activePlaylist;
         }
 
-        return (
-            (await firstValueFrom(
-                this.playlistsService.getPlaylistById(playlistId)
-            )) ??
-            activePlaylist ??
-            undefined
+        const storedPlaylist = await firstValueFrom(
+            this.playlistsService.getPlaylistById(playlistId),
+            { defaultValue: null }
         );
+
+        return storedPlaylist ?? activePlaylist ?? undefined;
     }
 
     private hasExplicitStalkerPortalMode(