chore(ci): remove obsolete sandcastle cutover note

diff --git a/.github/workflows/sandcastle.yml b/.github/workflows/sandcastle.yml
index 1c6d7c20b2f0769e777d493b9b90963155ce2f4c..2d173f66b8a33609dfff37065ce4ce4cbdaef772 100644 (file)
--- a/.github/workflows/sandcastle.yml
+++ b/.github/workflows/sandcastle.yml
@@ -1,13 +1,3 @@
-# Cutover note (one-time, can be removed after the first post-rename run):
-# The previous setup used label `sandcastle` and branch prefix `agent/issue`.
-# Before the first run on the new naming, the operator MUST:
-#   1. Rename the GitHub label:
-#      gh label edit sandcastle --name sandcastle-implement
-#   2. Close or merge any open PR whose head branch starts with `agent/issue-`,
-#      since the new pattern `agent/<key>-<n>-` does not match legacy branches
-#      and they are no longer recognised as covering an issue (which would
-#      otherwise produce duplicate PRs on the next nightly).
-
 name: Sandcastle
 
 on: