* refactor: update AppHandle usage to use Arc<AppHandle> for improved memory management
* fix: clippy ci
* fix: ensure default_latency_test is safely accessed with non-null assertion
* feat: add notification system with hotkey events and permission handling
* Add macOS-specific handling for AppHidden notification
Introduces conditional support for the AppHidden notification event,
enabling macOS-specific behavior. Updates the enum and notification
logic to include this platform-specific feature.
Improves macOS user experience by accommodating system-level
application hiding events.
* Implement feature X to enhance user experience and fix bug Y in module Z
* refactor(notification): update notification keys for consistency and clarity
* chore(deps): update dependencies to latest versions
