NOMOS Cross-Border Target Preflight: Asia scan + regulatory verdict (GDPR/DPDP/PIPL/FSA/MAS) + protocol match (MCP/A2A/AIP) in one signed call. Returns ALLOW/ALLOW_PUBLIC_SIGNAL_ONLY/REVIEW/BLOCK + blocked_fields + SHA-256 receipt_hash. Covers EU-Japan (adequacy OK), EU-India (SCCs required), EU-Korea (adequacy OK), EU-Singapore, EU-China (SG hub). Not legal advice.