fix(stalker): reveal remote selections in uncached search results

libs/portal/stalker/feature/src/lib/stalker-live-stream-layout/stalker-live-stream-layout.component.spec.ts

@@ -782,7 +782,7 @@ describe('StalkerLiveStreamLayoutComponent', () => {
         ).toEqual([]);
     });
 
-    it('grows the render window to include a channel selected beyond it (remote/numeric nav)', async () => {
+    it.each([true, false])('grows the render window for remote/numeric selection (cached=%s)', async (cached) => {
         const full = Array.from({ length: 250 }, (_, index) => ({
             id: `ch-${index}`,
             cmd: `ffrt4://itv/${index}`,
@@ -791,9 +791,10 @@ describe('StalkerLiveStreamLayoutComponent', () => {
             logo: '',
         }));
         itvFullListActive.set(true);
-        itvSelectedCategoryFromCache.set(true);
+        itvSelectedCategoryFromCache.set(cached);
         itvChannels.set(full);
-        itvFullChannelList.set(full);
+        itvFullChannelList.set(cached ? full : []);
+        searchPhrase.set('channel');
         fixture.detectChanges();
 
         expect(component.visibleChannels()).toHaveLength(100);

libs/portal/stalker/feature/src/lib/stalker-live-stream-layout/stalker-live-stream-layout.component.ts

@@ -1020,13 +1020,13 @@ export class StalkerLiveStreamLayoutComponent
     }
 
     /**
-     * In full-list mode the rendered list is windowed to `renderLimit`. When a
+     * Cached categories and search results are windowed to `renderLimit`. When a
      * channel beyond that window is selected (remote channel-up/down, numeric
      * select), grow the window so the selection is actually in the DOM and can
      * be highlighted/scrolled to instead of drifting off-window.
      */
     private ensureChannelWithinRenderWindow(channelId: string): void {
-        if (!this.isCategoryFromCache()) {
+        if (this.visibleChannels().length === this.filteredChannels().length) {
             return;
         }