feat(system):优化后端

1.新增后端测试
2.增加了后端的加密
3.增加了i18n（国际化）

kilostar/utils/get_tool.py

@@ -33,9 +33,11 @@ def _get_tool_func(tool_name: str) -> Callable | None:
     if func:
         return func
 
-    app_root = "/app"
     tool_plugin_dir = os.path.join(
-        app_root, "kilostar", "plugin", "tool_plugin", tool_name
+        os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+        "plugin",
+        "tool_plugin",
+        tool_name,
     )
 
     if not os.path.exists(tool_plugin_dir) or not os.path.isdir(tool_plugin_dir):