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/update_test.go

@@ -2,8 +2,8 @@ package router_test
 
 import (
 	"atsflare/common"
-	"atsflare/controller"
 	"atsflare/router"
+	"atsflare/service"
 	"bytes"
 	"encoding/json"
 	"io"
@@ -28,8 +28,8 @@ func TestLatestReleaseProxy(t *testing.T) {
 	common.RedisEnabled = false
 	setupTestDB(t)
 
-	originalClient := controller.UpdateHTTPClientForTest()
-	controller.SetUpdateHTTPClientForTest(&http.Client{
+	originalClient := service.UpdateHTTPClientForTest()
+	service.SetUpdateHTTPClientForTest(&http.Client{
 		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
 			if req.URL.String() != "https://api.github.com/repos/Rain-kl/ATSFlare/releases/latest" {
 				t.Fatalf("unexpected request url: %s", req.URL.String())
@@ -53,7 +53,7 @@ func TestLatestReleaseProxy(t *testing.T) {
 		}),
 	})
 	t.Cleanup(func() {
-		controller.SetUpdateHTTPClientForTest(originalClient)
+		service.SetUpdateHTTPClientForTest(originalClient)
 	})
 
 	engine := gin.New()
@@ -101,4 +101,7 @@ func TestLatestReleaseProxy(t *testing.T) {
 	if data["tag_name"] != "v1.2.3" {
 		t.Fatalf("unexpected tag_name: %#v", data["tag_name"])
 	}
+	if data["current_version"] != common.Version {
+		t.Fatalf("unexpected current_version: %#v", data["current_version"])
+	}
 }