Add mobile compatibility concept, Pixel 6 demo video infrastructure, and CI/CD workflow (#1006)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thomasnordquist <7721625+thomasnordquist@users.noreply.github.com>

scripts/prepareVideoMobile.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+# Mobile demo video post-processing script
+# Converts raw mobile video to MP4 and GIF, then cuts into segments
+
+DIMENSIONS="412x915"
+GIF_SCALE="412"
+
+ffmpeg -s:v $DIMENSIONS -r 20 -f rawvideo -pix_fmt yuv420p -i qrawvideorgb24-mobile.yuv app2-mobile.mp4
+
+# The video starts with a few blank frames, we want to know when they stop
+ffprobe -f lavfi -i "movie=app2-mobile.mp4,blackdetect[out0]" -show_entries tags=lavfi.black_start,lavfi.black_end -of default=nw=1 -v quiet > ffmpeg_info_mobile
+END_OF_BLACK=`cat ffmpeg_info_mobile | grep end | head -n1 | cut -d'=' -f2`
+
+# Remove grey frames at the beginning (app start and splash screen)
+END_OF_BLACK=`awk "BEGIN {print $END_OF_BLACK+0.8; exit}"`
+
+# Trim black frames at start
+ffmpeg -s:v $DIMENSIONS -r 20 -f rawvideo -pix_fmt yuv420p -i qrawvideorgb24-mobile.yuv -ss $END_OF_BLACK app-mobile.mp4
+
+# Generate gif palette
+ffmpeg -y -s:v $DIMENSIONS -r 20 -f rawvideo -pix_fmt yuv420p -i qrawvideorgb24-mobile.yuv -vf "fps=10,scale=$GIF_SCALE:-1:flags=lanczos,palettegen" palette-mobile.png
+
+# Create gif
+ffmpeg -s:v $DIMENSIONS -r 20 -f rawvideo -pix_fmt yuv420p -i qrawvideorgb24-mobile.yuv -i palette-mobile.png -ss $END_OF_BLACK -filter_complex "fps=10,scale=$GIF_SCALE:-1:flags=lanczos[x];[x][1:v]paletteuse" app-mobile.gif
+
+# Clean up
+rm ffmpeg_info_mobile palette-mobile.png qrawvideorgb24-mobile.yuv app2-mobile.mp4
+
+mv app-mobile.mp4 ui-test-mobile.mp4
+mv app-mobile.gif ui-test-mobile.gif
+
+# Cut video into segments based on scenes-mobile.json
+echo "Cutting mobile video into segments..."
+if [ -f "scenes-mobile.json" ]; then
+  node ./scripts/cutVideoSegmentsMobile.js
+else
+  echo "Warning: scenes-mobile.json not found, skipping segment creation"
+fi