chore(changelog): note confirmed-dead codes (b8e8d44)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/shared/changelog.ts

@@ -50,6 +50,14 @@ export const KIND_LABEL: Record<Entry["kind"], string> = {
 };
 
 export const ENTRIES: Entry[] = [
+  {
+    id: "codes-confirmed-dead",
+    date: "2026-10-20",
+    kind: "fix",
+    title: "Codes that no longer work are marked expired",
+    body: "Some codes stop working while guides still list them. Once we've tried one in game and it fails, its Codes tab shows it expired, with the date it was checked.",
+    ref: "b8e8d44",
+  },
   {
     id: "celebrations",
     date: "2026-10-18",