Cobb's real-use feedback: "playing a video is a button under a very
pixelated thumbnail, no playing in window mode, ... where are all the
features." This is the visible-UX pass.
Thumbnails:
- New util/Thumbnails.kt#bestThumbnail picks the highest-res image from
NewPipeExtractor's List<Image> by w*h pixel area. Was firstOrNull()
which is the smallest in the sorted list. Applied across Search,
Channel video rows, Channel avatar + banner, VideoDetail.
Tap-to-play:
- VideoDetail thumbnail is now wrapped in a clickable Box that fires
onPlay(). Centered semi-transparent black circle with a white play
triangle overlay so the affordance is obvious. The standalone "Play"
button below stays for accessibility (tap target consistency).
Picture-in-Picture:
- Manifest: android:supportsPictureInPicture="true" on StrawActivity +
added screenLayout|smallestScreenSize|screenSize to configChanges so
rotation into PiP doesn't recreate.
- PlayerScreen: top-right floating button enters PiP with 16:9 aspect.
- Lifecycle ON_STOP observer now checks isInPictureInPictureMode and
skips pausing when we're in PiP (was killing playback on PiP entry).
Phase M-2 next: MediaSession + background audio + foreground service
(the "play with screen off / lock screen controls" feature).
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