refactor backend module architecture

app/sdk/utilities.py

@@ -0,0 +1,35 @@
+"""插件常用的无状态通用工具。"""
+
+from app.domain.string import StringUtils
+from app.foundation.crypto import CryptoJsUtils
+from app.foundation.dom import DomUtils
+from app.foundation.jieba import cut
+from app.foundation.object import ObjectUtils
+from app.foundation.singleton import Singleton
+from app.infrastructure.system import SystemUtils
+from app.platform.execution import log_execution_time, retry
+from app.platform.localization import LocaleHelper
+from app.platform.scheduling import TimerUtils
+from app.security.otp import OtpUtils
+
+
+decrypt = CryptoJsUtils.decrypt
+encrypt = CryptoJsUtils.encrypt
+
+
+__all__ = [
+    "CryptoJsUtils",
+    "DomUtils",
+    "ObjectUtils",
+    "OtpUtils",
+    "LocaleHelper",
+    "Singleton",
+    "StringUtils",
+    "SystemUtils",
+    "TimerUtils",
+    "cut",
+    "decrypt",
+    "encrypt",
+    "log_execution_time",
+    "retry",
+]