COA-MAS Action Intent Schema v1.0.0

Canonical JSON Schema (draft/2020-12) for the Action Intent — the universal cross-domain artifact of the COA-MAS governance meta-framework. The Action Intent is the standardized, cryptographically signed declaration that any domain can read and evaluate by its own sovereign criteria. Supplementary artifact to: COA-MAS v2 — A Meta-Framework for Cross-Domain Multi-Agent Governance (Working Paper v0.3). Extends: COA-MAS v1 — doi.org/10.5281/zenodo.19057202