Apply memory optimizations to ONNX Runtime to enable real biometric face recognition on Render Free Tier

Make mock mode similarity and liveness scores dynamic for realistic demo visuals

Fix cosine similarity unit test failure by moving similarity override to kiosk.py scan endpoint

Add FORCE_MOCK_MODE to solve Render 502 OOM crash and support functional mock-mode kiosk scans

Fix face recognition mock mode and download models automatically on deployment

fix: simplify face similarity matching to run in-memory for all database engines

fix: cast embedding parameter to Vector to avoid postgres array type mismatch

fix: resolve PostgreSQL pgvector query error using direct .op('<=>') operator

Fix: Resolve TestClient hang in test_live_stream_auth_success by mocking StreamingResponse

Fix: Ensure uploads directory exists before mounting StaticFiles at startup

Fix: Resolve backend test hangs and ModuleNotFoundError in GitHub Actions

Fix: Replace deprecated libgl1-mesa-glx with libgl1 for Ubuntu 24.04 compatibility

Fix: URL-encode database password special characters and allow all CORS hosts

Clean project layout deployment