refactor: restructure async initialization and standardize logging system

### Major Improvements

- **Async initialization refactoring**: Complete async migration of init_config, improving app startup performance and stability
  - Change init_work_config from blocking to async execution
  - Optimize error handling for directory creation and config file initialization
  - Enhance structure and robustness of initialization process

- **Logging system standardization**: Unify usage of project's built-in logging! macro
  - Replace all log::info!/warn!/error!/debug! with logging!(level, Type::Setup, true, ...) format
  - Maintain consistency in log categorization and formatting
  - Improve convenience for log tracking and debugging

### Technical Optimizations

- **Error handling improvements**: Remove crate::log_err! macro, use standard Result error propagation
- **Directory management optimization**: Refactor ensure_directories function with clearer directory creation logic
- **Config initialization enhancement**: Separate initialize_config_files function for better code maintainability
- **Async task management**: Use AsyncHandler::spawn to optimize background log cleanup tasks

### Bug Fixes

- Fix potential race conditions in async config initialization
- Improve error feedback and logging during app startup
- Enhance error handling for DNS config and resource file initialization

### Updates

- Update wording in UPDATELOG.md issue descriptions

UPDATELOG.md

@@ -25,7 +25,8 @@
 - 修复订阅在某些情况下无法导入
 - 修复无法新建订阅时使用远程链接
 - 修复卸载服务后的 tun 开关状态问题
-- 改善页面快速切换订阅时导致崩溃
+- 修复页面快速切换订阅时导致崩溃
+- 修复丢失工作目录时无法恢复环境
 
 ### 👙 界面样式