perf(playback): make the web players and M3U player OnPush

Plan item C6 step 3 for playback: the eight Eager components in
libs/ui/playback (video.js, ArtPlayer, HTML5/hls/mpegts, audio player,
web player view, VOD details, sidebar, external-player dialog) and the M3U
video player and VOD detail switch to OnPush. The player libraries' events
already reach the UI through the signal-backed controls adapter or
outputs, and the players' DOM belongs to the libraries.

The M3U video player rendered three plain fields written outside template
events: the channel-number overlay, cleared by a 2 s debounce timer, and
the player choice, written from an IndexedDB read and a settings effect.
They are signals now, and a test checks that the overlay leaves the DOM
when the timer fires.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/ui/playback/src/lib/art-player/art-player.component.ts

@@ -51,7 +51,7 @@ Artplayer.AUTO_PLAYBACK_TIMEOUT = 10000;
     ],
     providers: [WebVideoControlsAdapter],
     templateUrl: './art-player.component.html',
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     styleUrls: ['./art-player.component.scss'],
 })
 export class ArtPlayerComponent implements OnInit, OnDestroy, OnChanges {

libs/ui/playback/src/lib/audio-player/audio-player.component.ts

@@ -167,7 +167,7 @@ import { PlaybackHistoryConfirmation } from '../playback-history/playback-histor
         </div>
     `,
     styleUrls: ['./audio-player.component.scss'],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     imports: [
         FormsModule,
         MatButtonModule,

libs/ui/playback/src/lib/external-player-info-dialog/external-player-info-dialog.component.ts

@@ -57,7 +57,7 @@ import { TranslateModule } from '@ngx-translate/core';
             }
         `,
     ],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     imports: [
         MatButtonModule,
         MatCheckboxModule,

libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts

@@ -71,7 +71,7 @@ const debugHtmlPlayer = createDevLogger('HtmlVideoPlayer');
         SeriesPlaybackNavigationControlsComponent,
     ],
     providers: [WebVideoControlsAdapter],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     standalone: true,
 })
 export class HtmlVideoPlayerComponent implements OnInit, OnChanges, OnDestroy {

libs/ui/playback/src/lib/video-player/sidebar/sidebar.component.ts

@@ -20,7 +20,7 @@ import { ChannelListContainerComponent } from '@iptvnator/ui/components';
     selector: 'app-sidebar',
     templateUrl: './sidebar.component.html',
     styleUrls: ['./sidebar.component.scss'],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     imports: [
         ChannelListContainerComponent,
         MatIcon,

libs/ui/playback/src/lib/vjs-player/vjs-player.component.ts

@@ -66,7 +66,7 @@ const debugVjsPlayer = createDevLogger('VjsPlayer');
         SeriesPlaybackNavigationControlsComponent,
     ],
     providers: [WebVideoControlsAdapter],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     standalone: true,
 })
 export class VjsPlayerComponent implements OnInit, OnChanges, OnDestroy {

libs/ui/playback/src/lib/vod-details/vod-details.component.ts

@@ -82,7 +82,7 @@ import { createVodSimilarInPortals } from './vod-similar-in-portals.state';
     selector: 'app-vod-details',
     templateUrl: './vod-details.component.html',
     styleUrls: ['../styles/detail-view.scss'],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     imports: [
         CastCrewRowComponent,
         DetailActionButtonComponent,

libs/ui/playback/src/lib/web-player-view/web-player-view.component.ts

@@ -91,7 +91,7 @@ import { resolveWebPlayerSharedControls } from './web-player-shared-controls';
             useFactory: resolveWebPlayerSharedControls,
         },
     ],
-    changeDetection: ChangeDetectionStrategy.Eager,
+    changeDetection: ChangeDetectionStrategy.OnPush,
     encapsulation: ViewEncapsulation.None,
 })
 export class WebPlayerViewComponent implements OnDestroy {