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docs/architecture/WEB_INGRESS_AND_ADMIN_UI_MODEL.md

@@ -9,6 +9,15 @@ Secure Access Fabric.
 The fabric node-to-node transport remains QUIC-only. HTTP/HTTPS is allowed only
 as an external client-facing service edge.
 
+Terminology rule:
+
+- `Fabric Transport` = QUIC/UDP node-to-node runtime layer.
+- `Control API` = HTTP/HTTPS management surface for UI, automation, releases,
+  policy, audit, and status.
+
+The Control API may use HTTP/HTTPS, but it is not a fallback or alternate
+carrier for fabric node-to-node runtime traffic.
+
 ## Purpose
 
 The platform needs a clear distinction between: