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/api/client.ts

@@ -39,6 +39,7 @@ import type {
   PlanDefinition,
   ActiveSubscription,
   UserMemorySyncResponse,
+  UserMemoryRecallHintResponse,
 } from '../types';
 import { normalizeConversationMessages, normalizeUserMessageForApi } from '../utils/message';
 import type { AgentRunCreateOptions, AgentRunValidation } from '../utils/agentRunMode';
@@ -238,6 +239,12 @@ export async function rememberUserMemory(sessionId: string): Promise<UserMemoryS
   });
 }
 
+export async function fetchMemoryRecallHint(sessionId: string): Promise<UserMemoryRecallHintResponse> {
+  return apiFetch<UserMemoryRecallHintResponse>(
+    `/user-memory/v1/recall-hint?sessionId=${encodeURIComponent(sessionId)}`,
+  );
+}
+
 export async function syncUserMemory(sessionId: string): Promise<UserMemorySyncResponse> {
   return apiFetch<UserMemorySyncResponse>('/user-memory/v1/sync', {
     method: 'POST',