feat(memory-v2): close Phase A with auto-review, product events, and H5 recall UI.

Add candidate auto-review pipeline, shadow audit tooling, admin metrics page,
and user-visible memory recall hints in chat with phase-a readiness checks.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/ChatView.tsx

@@ -187,6 +187,7 @@ export function ChatView({
     sessionsHasMore,
     sessionSearchQuery,
     messages,
+    memoryRecallByMessageId,
     messageHistoryLoadingMore,
     messageHistoryHasMore,
     messageHistoryTotal,
@@ -559,6 +560,7 @@ export function ChatView({
           variant="full"
           user={user}
           messages={messages}
+          memoryRecallByMessageId={memoryRecallByMessageId}
           historyLoadingMore={messageHistoryLoadingMore}
           historyHasMore={messageHistoryHasMore}
           historyTotal={messageHistoryTotal}