And more logging to test

LightlessSync/FileCache/FileCacheManager.cs

@@ -152,6 +152,7 @@ public sealed class FileCacheManager : IHostedService
         _logger.LogTrace("Creating cache entry for {path}", path);
         var cacheFolder = _configService.Current.CacheFolder;
         if (string.IsNullOrEmpty(cacheFolder)) return null;
+        _logger.LogInformation("CreateCacheEntry finished for {path}", path);
         return CreateFileEntity(cacheFolder, CachePrefix, fi);
     }
 
@@ -309,6 +310,8 @@ public sealed class FileCacheManager : IHostedService
 
     public Dictionary<string, FileCacheEntity?> GetFileCachesByPaths(string[] paths)
     {
+        _logger.LogInformation("GetFileCachesByPaths called for {count} paths", paths.Length);
+
         _getCachesByPathsSemaphore.Wait();
 
         try
@@ -365,6 +368,8 @@ public sealed class FileCacheManager : IHostedService
         }
         finally
         {
+
+            _logger.LogInformation("GetFileCachesByPaths finished for {count} paths", paths.Length);
             _getCachesByPathsSemaphore.Release();
         }
     }