feat(html-player): add feature-flagged shared controls (#1194)

* feat(html-player): bridge engine state to shared controls

* fix(html-player): avoid HLS subtitle event reentry

* fix(html-player): restore delayed HLS default subtitles

* refactor(html-player): split controls bridge collaborators

* feat(html-player): add feature-flagged shared controls

* test(html-player): cover shared-controls source ownership

* feat(html-player): pass shared-controls playback metadata

* docs(player-controls): describe HTML5 shared-controls bridge

* docs(player-controls): clarify HTML5 rollout effect

* fix(html-player): reveal diagnostics from fullscreen

* fix(html-player): defer HLS event resolution

* refactor(html-player): isolate video element session

tools/eslint/max-lines-baseline.mjs

@@ -120,7 +120,6 @@ export const maxLinesBaseline = [
     'libs/ui/components/src/lib/season-container/season-container.component.ts',
     'libs/ui/epg/src/lib/multi-epg/multi-epg-container.component.ts',
     'libs/ui/playback/src/lib/embedded-mpv-player/embedded-mpv-player.component.ts',
-    'libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts',
     'libs/ui/playback/src/lib/vjs-player/vjs-player.component.spec.ts',
     'libs/ui/playback/src/lib/vjs-player/vjs-player.component.ts',
     'libs/ui/playback/src/lib/web-player-view/web-player-view.component.spec.ts',