folders inside zip file

SatelliteProvider.IntegrationTests/ExtendedRouteTests.cs

@@ -160,12 +160,35 @@ public static class ExtendedRouteTests
             }
 
             var firstEntry = zipArchive.Entries[0];
-            Console.WriteLine($"  First entry: {firstEntry.Name} ({firstEntry.Length} bytes)");
+            Console.WriteLine($"  First entry: {firstEntry.FullName} ({firstEntry.Length} bytes)");
             
             if (firstEntry.Length == 0)
             {
                 throw new Exception("First entry in ZIP is empty");
             }
+
+            var entriesWithDirs = zipArchive.Entries.Where(e => e.FullName.Contains('/')).ToList();
+            Console.WriteLine($"  Entries with directory structure: {entriesWithDirs.Count}/{zipArchive.Entries.Count}");
+            
+            if (entriesWithDirs.Count == 0)
+            {
+                throw new Exception("ZIP should preserve directory structure but found no entries with paths");
+            }
+
+            var samplePaths = entriesWithDirs.Take(3).Select(e => e.FullName).ToList();
+            Console.WriteLine($"  Sample paths:");
+            foreach (var path in samplePaths)
+            {
+                Console.WriteLine($"    - {path}");
+            }
+
+            var pathParts = firstEntry.FullName.Split('/');
+            if (pathParts.Length < 4)
+            {
+                throw new Exception($"Expected directory structure like '18/158/91/tile_xxx.jpg' but got '{firstEntry.FullName}'");
+            }
+
+            Console.WriteLine($"  ✓ Directory structure preserved (zoom/{pathParts[0]}/x-bucket/{pathParts[1]}/y-bucket/{pathParts[2]}/file)");
         }
 
         Console.WriteLine();