Show face snapshot in UI for greeting and enrolling states

Fix face recognition: BGR→RGB, robust zip extraction, schema versioning

Add GREETING state so recognised faces are shown in GUI and spoken

Fix: always speak name after enrollment, even when face save fails

Fix face recognition: align faces and enroll multiple frames

Fix model extraction path for buffalo_sc v0.7 zip

Align motion API with AGENTS.md recommendations

Switch to local ONNX face recognition (no compilation, no cloud)

Replace face-recognition/dlib with AWS Rekognition

Add reachy-mini keyword tag

Initial commit