feat: implement server self-upgrade functionality

- Added update service to fetch the latest server release from GitHub.
- Implemented server upgrade scheduling and execution logic.
- Created platform-specific restart mechanisms for Unix and Windows.
- Introduced API endpoints for fetching the latest release and triggering upgrades.
- Developed UI components for version upgrade modal, including loading and error states.
- Updated documentation to reflect new upgrade features and instructions.
- Refactored settings types to streamline interface definitions.

atsf_server/router/api-router.go

@@ -59,6 +59,7 @@ func SetApiRouter(router *gin.Engine) {
 		updateRoute.Use(middleware.RootAuth(), middleware.NoTokenAuth())
 		{
 			updateRoute.GET("/latest-release", controller.GetLatestRelease)
+			updateRoute.POST("/upgrade", controller.UpgradeServer)
 		}
 		fileRoute := apiRouter.Group("/file")
 		fileRoute.Use(middleware.AdminAuth())