release: include error metadata file for launcher purposes (#1463)

* release: include error metadata file for launcher purposes

* release: put release assets in the top level of the 7z/tarball (no out/ dir)

* extractor: ensure critical directories are created

* extractor: handle weird Win32 path prefix `\\?\` by stripping it out

* release: avoid using `-C` with `tar`

decompiler/extractor/main.cpp

@@ -261,6 +261,9 @@ void decompile(std::filesystem::path jak1_input_files) {
   db.find_code(config);
   db.process_labels();
 
+  // ensure asset dir exists
+  file_util::create_dir_if_needed(file_util::get_file_path({"assets"}));
+
   // text files
   {
     auto result = db.process_game_text_files(config);