fix: 批量解析不再过滤无URL的访问结果，显示为(未指定URL)

par-api/src/main/java/com/par/api/controller/AdapterController.java

@@ -106,9 +106,8 @@ public class AdapterController {
         // 获取该站点所有结果，按URL分组取最新
         List<AccessResult> allResults = accessResultMapper.selectBySiteId(siteId);
         Map<String, AccessResult> latestByUrl = allResults.stream()
-                .filter(r -> r.getUrl() != null && !r.getUrl().isBlank())
                 .collect(Collectors.toMap(
-                        AccessResult::getUrl,
+                        r -> r.getUrl() != null && !r.getUrl().isBlank() ? r.getUrl() : "(未指定URL)",
                         r -> r,
                         (a, b) -> a.getCreatedAt().isAfter(b.getCreatedAt()) ? a : b));