Helix example evidence bundle (format-only)

This is a redacted, synthetic bundle intended to demonstrate:
- Bundle layout (inputs/, exports/, evidence/, reports/, session/)
- Integrity receipts (manifest.json + SHA256SUMS.txt)

It does NOT contain real customer data and does NOT claim scientific correctness.

Verify file integrity (no internet needed):
  sha256sum -c SHA256SUMS.txt

Verify with Helix CLI (policy + schema validation, when installed):
  helix verify --kind auto --manifest manifest.json

