chore: add draft pr placeholder

ZQDesigned · ZQDesigned · commit 16485d7311dc · 2026-06-26T08:58:47.000Z
diff --git a/docs/wip-pr-placeholder.md b/docs/wip-pr-placeholder.md
@@ -0,0 +1,7 @@
+This file is a temporary placeholder for creating a Draft WIP PR for the `LegacyMenuItem` function-component migration work.
+
+It exists only so maintainers can associate the PR with `ant-design/ant-design#58404`.
+
+Planned cleanup:
+
+- Remove this file in the first real implementation commit, or before merge.
