chore: release v0.36.86

[Destynova2]

🤖 New release

• grob: 0.36.85 -> 0.36.86

Changelog

0.36.86 - 2026-08-04

Fixed

• (policies) enforce decision token expiry and audience (#500)
• harden critical architecture boundaries (#493)

Other

• (design) validate the OCR-to-DLP hypothesis against the real engine (#499)
• (design) measure L2 watermark robustness, correct layer table (#498)
• (design) measure TrustMark cost and pHash robustness contract (#497)
• (design) correct c2pa cost with real measurements, reorder media plan (#496)
• (design) image/video DLP, content provenance, and agent control plane (#495)
• (reference) add the protocol fidelity matrix (#490)

---

This PR was generated with release-plz.