feat(audit): log retrieval should be in reverse order by default.

aspnet-core/modules/auditing/LINGYUN.Abp.AuditLogging.Elasticsearch/LINGYUN/Abp/AuditLogging/Elasticsearch/ElasticsearchAuditLogManager.cs

@@ -113,8 +113,8 @@ namespace LINGYUN.Abp.AuditLogging.Elasticsearch
         {
             var client = _clientFactory.Create();
 
-            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("desc", StringComparison.InvariantCultureIgnoreCase)
-                ? SortOrder.Descending : SortOrder.Ascending;
+            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("asc", StringComparison.InvariantCultureIgnoreCase)
+                ? SortOrder.Ascending : SortOrder.Descending;
             sorting = !sorting.IsNullOrWhiteSpace() 
                 ? sorting.Split()[0]
                 : nameof(AuditLog.ExecutionTime);

aspnet-core/modules/auditing/LINGYUN.Abp.AuditLogging.Elasticsearch/LINGYUN/Abp/AuditLogging/Elasticsearch/ElasticsearchSecurityLogManager.cs

@@ -114,8 +114,8 @@ namespace LINGYUN.Abp.AuditLogging.Elasticsearch
         {
             var client = _clientFactory.Create();
 
-            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("desc", StringComparison.InvariantCultureIgnoreCase)
-                ? SortOrder.Descending : SortOrder.Ascending;
+            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("asc", StringComparison.InvariantCultureIgnoreCase)
+                ? SortOrder.Ascending : SortOrder.Descending;
             sorting = !sorting.IsNullOrWhiteSpace()
                 ? sorting.Split()[0]
                 : nameof(SecurityLog.CreationTime);

aspnet-core/modules/logging/LINGYUN.Abp.Logging.Serilog.Elasticsearch/LINGYUN/Abp/AuditLogging/Serilog/Elasticsearch/SerilogElasticsearchLoggingManager.cs

@@ -148,8 +148,8 @@ namespace LINGYUN.Abp.Logging.Serilog.Elasticsearch
         {
             var client = _clientFactory.Create();
 
-            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("desc", StringComparison.InvariantCultureIgnoreCase)
-                ? SortOrder.Descending : SortOrder.Ascending;
+            var sortOrder = !sorting.IsNullOrWhiteSpace() && sorting.EndsWith("asc", StringComparison.InvariantCultureIgnoreCase)
+                ? SortOrder.Ascending : SortOrder.Descending;
             sorting = sorting ?? "timestamp";
 
             var querys = BuildQueryDescriptor(
@@ -218,7 +218,7 @@ namespace LINGYUN.Abp.Logging.Serilog.Elasticsearch
             }
             if (level.HasValue)
             {
-                querys.Add((log) => log.Term((q) => q.Field(f => f.Level.Suffix("keyword")).Value(level)));
+                querys.Add((log) => log.Term((q) => q.Field(f => f.Level.Suffix("keyword")).Value(level.ToString())));
             }
             if (!machineName.IsNullOrWhiteSpace())
             {