refactor(PointLogRepo): 优化 getList 方法参数类型

- 将 $type 参数类型从 string 改为 PointType 枚举
- 使用 isset 和 null 合并条件表达式简化代码

src/Infrastructure/Repository/PointLogRepo.php

@@ -14,13 +14,14 @@ namespace Singularity\HDK\Pay\Infrastructure\Repository;
 use Carbon\Carbon;
 use Hyperf\Codec\Json;
 use Singularity\HDK\Pay\Domain\Account\Aggregate\PointLog\PointLog;
+use Singularity\HDK\Pay\Domain\Account\Enum\PointType;
 use Singularity\HDK\Pay\Domain\Account\Repository\PointLogRepoInterface;
 
 final class PointLogRepo extends AbstractRepo implements PointLogRepoInterface
 {
-    public function getList(string $uid, ?string $type = null): array
+    public function getList(string $uid, ?PointType $type = null): array
     {
-        $type ??= 'all';
+        $type = isset($type) ? $type->value: 'all';
         $response = $this->requestService->requestGet(url: "/rpc/v2/account/$uid/balance/$type/logs");
 
         $content = $response->getBody()->getContents();