FaceAISDK/FaceAISDK_Android — reverse-engineered prompt

Build me an Android demo app around this face SDK that works fully offline on the device. I want a clean sample that shows face detection, face recognition, liveness checks to stop spoofing, and both one to one verification and one to many face search. Please include an easy way to enroll people into a face library, edit or delete them, and then test recognition from the camera.

It should work with the normal phone camera, and also support UVC USB cameras if the project already covers that. Add both silent liveness and action based liveness like blinking, smiling, opening the mouth, shaking the head, and nodding. Keep privacy front and center, no network required and no face data uploaded anywhere. Make the demo easy to run and easy to understand, with simple screens for verify, search, add face, and camera mode. If anything is unclear, check the repo docs and current docs online and wire it up in the most complete working way.