use just the first part instead of trying to merge it

app/models/report.rb

@@ -35,25 +35,27 @@ def generate_bundled_html
   end
 
   def simplecov_generate_bundled_html
-    with_folder_with_unzipped_parts do |tempdir|
-      # `File::FNM_DOTMATCH` to also include hidden files
-      resultset_json_filepaths = Dir.glob(File.join(tempdir, "**", "*resultset.json"), File::FNM_DOTMATCH)
-
-      # SimpleCov needs access to the code to merge the results
-      some_part_routes_file = Dir.glob(File.join(tempdir, "**", "code/config/routes.rb")).first
-      code_path = some_part_routes_file.split("/config/routes.rb").first
-      FileUtils.copy_entry code_path, tempdir
-
-      merged_folder_path = File.join(tempdir, "SIMPLECOV-MERGED-COVERAGE")
-      SimpleCov.collate(resultset_json_filepaths, "rails") do
-        coverage_dir(merged_folder_path)
-      end
+    bundled_html = parts.first.blob
 
-      merged_zip_path = "#{merged_folder_path}.zip"
-      Files::ZipFileGenerator.new(merged_folder_path, merged_zip_path).call
+    # with_folder_with_unzipped_parts do |tempdir|
+    #   # `File::FNM_DOTMATCH` to also include hidden files
+    #   resultset_json_filepaths = Dir.glob(File.join(tempdir, "**", "*resultset.json"), File::FNM_DOTMATCH)
 
-      bundled_html.attach(io: File.open(merged_zip_path), filename: "bundled_html.zip", content_type: "application/zip")
-    end
+    #   # SimpleCov needs access to the code to merge the results
+    #   some_part_routes_file = Dir.glob(File.join(tempdir, "**", "code/config/routes.rb")).first
+    #   code_path = some_part_routes_file.split("/config/routes.rb").first
+    #   FileUtils.copy_entry code_path, tempdir
+
+    #   merged_folder_path = File.join(tempdir, "SIMPLECOV-MERGED-COVERAGE")
+    #   SimpleCov.collate(resultset_json_filepaths, "rails") do
+    #     coverage_dir(merged_folder_path)
+    #   end
+
+    #   merged_zip_path = "#{merged_folder_path}.zip"
+    #   Files::ZipFileGenerator.new(merged_folder_path, merged_zip_path).call
+
+    #   bundled_html.attach(io: File.open(merged_zip_path), filename: "bundled_html.zip", content_type: "application/zip")
+    # end
   end
 
   def simplecov_generate_results