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>

memory-v2-lifecycle.mjs

@@ -57,6 +57,19 @@ function normalizeItem(row) {
   };
 }
 
+function normalizePromoteRawJson(value) {
+  if (value == null) return null;
+  if (typeof value === 'object') return JSON.stringify(value);
+  const text = String(value).trim();
+  if (!text) return null;
+  try {
+    JSON.parse(text);
+    return text;
+  } catch {
+    return JSON.stringify({ legacyEvidence: text });
+  }
+}
+
 export function createMemoryV2LifecycleService({ pool = null, env = process.env, now = () => Date.now(), logger = console } = {}) {
   const policy = resolveMemoryV2LifecyclePolicy(env);
   const metrics = { list: 0, forget: 0, expire: 0, compact: 0, promote: 0, reflect: 0, errors: 0, lastRunAt: null, lastError: null };
@@ -134,7 +147,7 @@ export function createMemoryV2LifecycleService({ pool = null, env = process.env,
         `INSERT IGNORE INTO ${MEMORY_TABLE}
           (id,user_id,label,memory_hash,memory_text,evidence_message_id,source_session_id,confidence,status,raw_json,created_at,updated_at)
          VALUES (?,?,?,?,?,?,?,?,?,?,?,?)`,
-        [id, row.user_id, row.memory_type === 'semantic' ? 'knowledge' : row.memory_type, hash, row.content, null, row.session_id, row.confidence, 'active', row.evidence_json, row.created_at, now()],
+        [id, row.user_id, row.memory_type === 'semantic' ? 'knowledge' : row.memory_type, hash, row.content, null, row.session_id, row.confidence, 'active', normalizePromoteRawJson(row.evidence_json), row.created_at, now()],
       );
       if (Number(result?.affectedRows ?? 0) > 0) {
         promoted += 1;