fix: CI Node 18/20 下 aria-crypto 失败 — SubtleCrypto 跨 realm ArrayBuffer 兼容

- crypto.ts encryptPage/decryptPage 改传 TypedArray 视图(ArrayBuffer.isView 检查跨 realm 可靠)
- jest.setup.js structuredClone polyfill 用跨 realm toString 标签检查
  (修复 fake-indexeddb 存储 ArrayBuffer 被 JSON 破坏成 {} 的问题)
- 新增 SSTable 加密真实路径测试(加密落盘→重载解密, 8 个测试)
- aria/v025 固定 db 名改随机(fake-indexeddb 真实持久化后防表残留冲突)
- Node 18/20/22/24 全矩阵 837 测试通过

tests/engine/aria-crypto.test.ts

@@ -4,6 +4,7 @@
  *
  * v0.2.6 补强：此前仅验证实例化，现在验证真实的加解密往返一致性。
  */
+import 'fake-indexeddb/auto';
 import {
   CryptoManager,
   initCrypto,
@@ -109,3 +110,48 @@ describe('AriaEngine — CryptoManager', () => {
     cm.close();
   });
 });
+
+// ===================================================================
+//  真实存储路径：SSTable 加密 → 持久化 → 重载解密（v0.3.2 CI 修复）
+// ===================================================================
+
+describe('AriaEngine — SSTable 加密存储真实路径', () => {
+  test('加密落盘后重载可完整解密', async () => {
+    // eslint-disable-next-line @typescript-eslint/no-var-requires
+    const { AriaEngine } = require('../../src/engine/aria/index');
+    // eslint-disable-next-line @typescript-eslint/no-var-requires
+    const { createSchema } = require('../../src/table/schema');
+    const dbName = `enc-store-${Date.now()}`;
+
+    await initCrypto('engine-store-password');
+
+    const engine = new AriaEngine({
+      storageBackend: 'indexeddb',
+      walSyncMode: 'none',
+    } as any);
+    await engine.open(dbName, 1);
+    await engine.createTable(createSchema('t', {
+      id: { type: 'string', primaryKey: true },
+      v: { type: 'number' },
+    }));
+    await engine.insert('t', [{ id: '1', v: 42 }, { id: '2', v: 99 }]);
+    // 强制刷盘：SSTable 经加密保存（encryptPage 真实路径）
+    await (engine as any).lsm.flush();
+    await engine.close();
+
+    // 重载：SSTable 解密恢复
+    const engine2 = new AriaEngine({
+      storageBackend: 'indexeddb',
+      walSyncMode: 'none',
+    } as any);
+    await engine2.open(dbName, 1);
+    const rows = await engine2.find('t', { table: 't' });
+    expect(rows).toHaveLength(2);
+    const byId = Object.fromEntries(rows.map((r: any) => [r.id, r.v]));
+    expect(byId['1']).toBe(42);
+    expect(byId['2']).toBe(99);
+    await engine2.close();
+
+    closeCrypto();
+  });
+});