[DNSOP] Updated I-D: draft-pro-adp-agent-discovery-01 — SVCB-first + IANA registration

Hi DNSOP,

We've updated draft-pro-adp-agent-discovery to -01. The major changes
from -00:

1. SVCB-first DNS discovery (RFC 9460), delegating the DNS layer to
   DNS-AID (draft-mozleywilliams-dnsop-dnsaid) for SvcParamKey
   registration (bap, cap, cap-sha256, well-known).

2. TLSA + DNSSEC for DANE-based TLS endpoint authentication
   (RFC 6698).

3. Four-level trust escalation model: dns-verified →
   dane-verified → key-verified → peer-verified.

4. The original TXT+SRV scheme from -00 is retained as a documented
   fallback for backward compatibility.

5. IANA registered "ai-adp" as the service name in the Service Name
   and Transport Protocol Port Number Registry on 2026-06-12.

The SVCB-first approach aligns ADP's DNS layer with the ongoing work
in dnsop. We'd appreciate any feedback on the SVCB parameter usage,
the ALPN negotiation strategy, and the trust escalation model.

I-D: https://datatracker.ietf.org/doc/draft-pro-adp-agent-discovery/
Repo: https://github.com/harrylian8766/adp-protocol

Thanks,
Harry

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