v2063

Automated release from CI pipeline

**Changes:**
docs: add calibration guide and trust/engine-error diagnostics (#1456) (#1457)

Closes the two documentation gaps from #1456 (follow-up to #1401):

- docs/calibration-guide.md: what calibrate/enroll/train-room actually
  enforce, grounded in v2/crates/wifi-densepose-calibration and
  wifi-densepose-cli source (not just ADR-135/151 aspirational prose).
  Covers the hard 600-frame baseline minimum, per-anchor quality gate
  thresholds, the unsolved pet/small-motion presence-detection gap, and
  what the empty-room baseline capture actually needs (steady vs silent).
  Flags that ADR-135's drift_score/BaselineDrift staleness system is not
  implemented in code — only bank.rs's baseline_id STALE check is real.

- docs/trust-and-engine-errors.md: exact trigger conditions for
  engine_error_count vs the separate, non-sticky `demoted` privacy-class
  flag, where both are exposed (/health/ready and /api/v1/status share a
  handler), the real diagnostic gap (no per-cause breakdown, log line is
  the closest thing), the WDP_GUARD_INTERVAL_US recovery path for
  persistent clock-drift demotion, and an honest "no code path found"
  answer on whether a converted HuggingFace model explains engine errors.

Also adds both docs to the README documentation table. No code changes.

**Docker Image:**
`ghcr.io/ruvnet/RuView:e6062977c965e9dd5603a3b1587a9da49caf9b17`