First slice of Phase 2 (People / faces):
- migration: `faces` schema with `faces.persons` and `faces.faces`.
Embeddings are stored as BYTEA (512 x f32) — no pgvector extension
dependency; similarity is computed in-app (pgvector/VectorChord is the
documented scale-up). Cascade deletes (by user and by source file)
satisfy the right to erasure.
- OXICLOUD_ENABLE_FACES feature flag, OFF by default (biometric data,
opt-in per deployment).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JW6ghFMDtnRYuYNzZhb47M
Claude