Status block updated in design-decisions.md (the ruling authority);
CURRENT-STATE + ledger D-131 lines coupled in the same commit (GA-R1 C1).
No live change -- codifies the running dc0-node-dns shape.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019aLU6j24tjquxgYQaAHgsV