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-runtime.test.mjs

@@ -105,7 +105,10 @@ test('createMemoryV2Runtime ensures candidate schema before enabling MySQL persi
     messages: [{ role: 'user', content: '请记住我偏好使用简洁的中文回答' }],
   });
   assert.equal(observed.accepted, 1);
-  assert.equal(calls[1].sql.startsWith('INSERT'), true);
+  assert.ok(
+    calls.some((call) => call.sql.startsWith('INSERT')),
+    `expected candidate INSERT, got: ${calls.map((call) => call.sql.slice(0, 40)).join(' | ')}`,
+  );
   await memory.close();
 });