Android: Bluetooth heart-rate straps, and offline media on WorkManager

• 5717cbc762 feat(android): read Bluetooth heart-rate straps like iOS Chris Breuer review this step
• 400e25e47a docs(types): heart rate runs on Android too Chris Breuer review this step
• d50031e102 test(android): check the Wi-Fi-only keep where WorkManager holds it Chris Breuer review this step
• ff9a958da5 fix(android): asked again, a kept video runs now; probe the WorkManager keep Chris Breuer review this step
• 80bc557c25 fix(android): build the media probe with AndroidX, test resumes on a socket Chris Breuer review this step
• e8c40a2f7c test(sdk): stop each bridge test's timers when the test ends Chris Breuer review this step
• 7b034a32cd Merge remote-tracking branch 'origin/main' into feat/android-heart-rate Chris Breuer review this step