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/controller/update.go

@@ -1,27 +1,12 @@
 package controller
 
 import (
-	"encoding/json"
-	"fmt"
+	"atsflare/service"
 	"net/http"
-	"time"
 
 	"github.com/gin-gonic/gin"
 )
 
-const latestReleaseURL = "https://api.github.com/repos/Rain-kl/ATSFlare/releases/latest"
-
-var updateHTTPClient = &http.Client{
-	Timeout: 10 * time.Second,
-}
-
-type latestReleaseResponse struct {
-	TagName     string `json:"tag_name"`
-	Body        string `json:"body"`
-	HTMLURL     string `json:"html_url"`
-	PublishedAt string `json:"published_at"`
-}
-
 // GetLatestRelease godoc
 // @Summary Get latest GitHub release
 // @Tags Update
@@ -29,40 +14,11 @@ type latestReleaseResponse struct {
 // @Success 200 {object} map[string]interface{}
 // @Router /api/update/latest-release [get]
 func GetLatestRelease(c *gin.Context) {
-	req, err := http.NewRequestWithContext(c.Request.Context(), http.MethodGet, latestReleaseURL, nil)
+	release, err := service.GetLatestServerRelease(c.Request.Context())
 	if err != nil {
 		c.JSON(http.StatusOK, gin.H{
 			"success": false,
-			"message": "创建更新请求失败",
-		})
-		return
-	}
-	req.Header.Set("Accept", "application/vnd.github+json")
-	req.Header.Set("User-Agent", "ATSFlare-Server")
-
-	resp, err := updateHTTPClient.Do(req)
-	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": fmt.Sprintf("获取最新版本失败: %v", err),
-		})
-		return
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": fmt.Sprintf("GitHub 返回异常状态: %s", resp.Status),
-		})
-		return
-	}
-
-	var release latestReleaseResponse
-	if err = json.NewDecoder(resp.Body).Decode(&release); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "解析最新版本信息失败",
+			"message": err.Error(),
 		})
 		return
 	}
@@ -74,10 +30,25 @@ func GetLatestRelease(c *gin.Context) {
 	})
 }
 
-func UpdateHTTPClientForTest() *http.Client {
-	return updateHTTPClient
-}
+// UpgradeServer godoc
+// @Summary Upgrade server binary from latest GitHub release
+// @Tags Update
+// @Produce json
+// @Success 200 {object} map[string]interface{}
+// @Router /api/update/upgrade [post]
+func UpgradeServer(c *gin.Context) {
+	release, err := service.ScheduleServerUpgrade()
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
 
-func SetUpdateHTTPClientForTest(client *http.Client) {
-	updateHTTPClient = client
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "服务升级任务已启动，下载完成后将自动重启。",
+		"data":    release,
+	})
 }