refactor: 优化日志系统及自动化备份机制

- 替换 loguru 为原生 logging 库(与pytest兼容性更好)。
- 更新 pytest.ini 统一配置日志格式和基础命令。
- 优化 main.py 增加测试后的日志自动备份与定期清理功能。
- 新增 settings.py 实现配置解耦
- 更新 .gitignore

pyproject.toml

@@ -1,12 +1,14 @@
 [project]
 name = "appautotest"
 version = "0.1.0"
-description = "Add your description here"
+description = "App自动化测试框架"
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
+    "allure-pytest==2.13.5",
     "appium-python-client>=5.2.4",
     "loguru>=0.7.3",
+    "pytest>=8.3.5",
 ]
 
 [[tool.uv.index]]