Perf work for the TV FPS complaint: every page that loads from the API
also warms Coil's disk/memory caches (video thumbnails at the same
480x270 the card renders, channel banners/avatars) so rows scroll
without popping in over the network. Prefetch keys match render keys
exactly so cache hits are guaranteed.
bridge-emulator.sh runs OUTSIDE the container on the emulator host:
boots jtubesc if needed (ADB_VENDOR_KEYS whitelists the host adb key),
installs/starts JTube TV and binds :5557 -> adbd 5601 so the container
and LAN can drive it. Run it once in your rutherford shell.
