fix: 修复版本更新时字段未正确保存的问题

backend/internal/router/admin/versions.go

@@ -356,23 +356,53 @@ func handleUpdateVersionGlobal(c *gin.Context) {
 	if req.Version != "" {
 		version.Version = req.Version
 	}
-	version.ForceUpdate = req.ForceUpdate
 	if req.UpdateStrategy != "" {
 		version.UpdateStrategy = req.UpdateStrategy
 	}
 	if req.UpdateMethod != "" {
 		version.UpdateMethod = req.UpdateMethod
 	}
-	version.MinVersion = req.MinVersion
-	version.Description = req.Description
-	version.Changelog = req.Changelog
+	if req.MinVersion != "" {
+		version.MinVersion = req.MinVersion
+	}
+	if req.Description != "" {
+		version.Description = req.Description
+	}
+	if req.Changelog != "" {
+		version.Changelog = req.Changelog
+	}
 	if req.Status != "" {
 		version.Status = req.Status
 	}
 
-	if err := database.DB.Save(&version).Error; err != nil {
-		response.Error(c, 500, "更新版本失败")
-		return
+	updates := map[string]interface{}{}
+	if req.Version != "" {
+		updates["version"] = req.Version
+	}
+	if req.UpdateStrategy != "" {
+		updates["update_strategy"] = req.UpdateStrategy
+	}
+	if req.UpdateMethod != "" {
+		updates["update_method"] = req.UpdateMethod
+	}
+	if req.MinVersion != "" {
+		updates["min_version"] = req.MinVersion
+	}
+	if req.Description != "" {
+		updates["description"] = req.Description
+	}
+	if req.Changelog != "" {
+		updates["changelog"] = req.Changelog
+	}
+	if req.Status != "" {
+		updates["status"] = req.Status
+	}
+
+	if len(updates) > 0 {
+		if err := database.DB.Model(&version).Updates(updates).Error; err != nil {
+			response.Error(c, 500, "更新版本失败")
+			return
+		}
 	}
 
 	userIDPtr := &userID