Enrollment
We will capture several short bursts while the user moves their head.
This makes recognition stable across different angles and camera height (laptop on stand vs on knees).
Current step: Look straight
Neutral pose: look at the camera as you normally would. This step is used as baseline (camera may be above/below).
Captured: 0 frame(s) (0 / 5 steps done)
Captured frames are sent to API as JPEG base64.