Remove legacy consumer API

docs/circuit-list-editor-api.md

@@ -148,14 +148,12 @@ Request sketch:
 }
 ```
 
-## Legacy Endpoints (Temporary)
+## Removed Legacy Endpoints
 
-- `GET /consumers/projects/:projectId`
-- `POST /consumers`
-- `PUT /consumers/:consumerId`
-- `DELETE /consumers/:consumerId`
-
-These remain for migration/legacy views. New circuit-list interactions must use circuit-first endpoints above.
+The former `/consumers` read/write endpoints were removed after every retained
+consumer had a verified Circuit-First migration mapping. Database upgrade tooling
+reads retained legacy rows directly; application features must use the Circuit-First
+endpoints above.
 
 ## Linked Project Device Review