启动器新增游戏设置页（频道开关+活动开关），窗口标题改名

- 服务端新增活动开关运行时配置与 GM 接口（GET/POST /dnf/gm/activity-switches），
  持久化到 Settings，接入月签到/周签到/PC房↔累计在线的实时下发
- 服务端新增频道开关 GM 接口（channel-switches），目录生成时过滤禁用频道
- channelcatalog/channelinfo 支持按禁用频道 ID 过滤目录与客户端脚本
- 启动器新增「游戏设置」页面：频道开关 Tab + 活动开关 Tab
- native.py/server.py 新增对应转发 API
- 窗口标题/页面 title/侧边栏「90轮回」统一改为「DNF90 灵狐小竹整合单机版」

server/internal/modules/dnf/channelcatalog/catalog.go

@@ -34,6 +34,9 @@ type Options struct {
 	GamePortBase int
 	MaxUsers     int
 	CurrentUsers int
+	// DisabledIDs 是运行时被关闭的频道 ID 集合（来自启动器「频道开关」）。
+	// 这些频道不进入目录，也不会开游戏端口监听。
+	DisabledIDs map[int]bool
 }
 
 // Catalog 是从 channel_info.etc 派生的只读频道目录。
@@ -56,6 +59,9 @@ func New(index *channelinfo.Index, options Options) (*Catalog, error) {
 		if item.ID <= 0 {
 			continue
 		}
+		if options.DisabledIDs != nil && options.DisabledIDs[item.ID] {
+			continue
+		}
 		if _, ok := seen[item.ID]; ok {
 			continue
 		}

server/internal/modules/dnf/channelinfo/online_script.go

@@ -17,7 +17,13 @@ import (
 // 严格版：源表缺少引导频道时直接失败。只开少数频道（甚至只开特殊区域频道）的运维配置
 // 请走 Build90CNOnlineScriptAllowingMissingBootstrap。
 func Build90CNOnlineScript(data []byte, sourceServerID, advertiseServerID, bootstrapChannelID int) ([]byte, error) {
-	script, bootstrapFound, err := build90CNOnlineScript(data, sourceServerID, advertiseServerID, bootstrapChannelID)
+	return Build90CNOnlineScriptFiltered(data, sourceServerID, advertiseServerID, bootstrapChannelID, nil)
+}
+
+// Build90CNOnlineScriptFiltered 是 Build90CNOnlineScript 的带禁用频道过滤版。
+// disabledIDs 里的频道不会进入下发给客户端的频道表（与 channelcatalog 的过滤保持一致）。
+func Build90CNOnlineScriptFiltered(data []byte, sourceServerID, advertiseServerID, bootstrapChannelID int, disabledIDs map[int]bool) ([]byte, error) {
+	script, bootstrapFound, err := build90CNOnlineScript(data, sourceServerID, advertiseServerID, bootstrapChannelID, disabledIDs)
 	if err != nil {
 		return nil, err
 	}
@@ -45,12 +51,22 @@ func Build90CNOnlineScriptAllowingMissingBootstrap(
 	data []byte,
 	sourceServerID, advertiseServerID, bootstrapChannelID int,
 ) ([]byte, bool, error) {
-	return build90CNOnlineScript(data, sourceServerID, advertiseServerID, bootstrapChannelID)
+	return build90CNOnlineScript(data, sourceServerID, advertiseServerID, bootstrapChannelID, nil)
+}
+
+// Build90CNOnlineScriptAllowingMissingBootstrapFiltered 是带禁用频道过滤的宽松版。
+func Build90CNOnlineScriptAllowingMissingBootstrapFiltered(
+	data []byte,
+	sourceServerID, advertiseServerID, bootstrapChannelID int,
+	disabledIDs map[int]bool,
+) ([]byte, bool, error) {
+	return build90CNOnlineScript(data, sourceServerID, advertiseServerID, bootstrapChannelID, disabledIDs)
 }
 
 func build90CNOnlineScript(
 	data []byte,
 	sourceServerID, advertiseServerID, bootstrapChannelID int,
+	disabledIDs map[int]bool,
 ) ([]byte, bool, error) {
 	if sourceServerID <= 0 || advertiseServerID < 0 || bootstrapChannelID <= 0 {
 		return nil, false, errors.New("channel script source, advertisement, and bootstrap IDs are invalid")
@@ -124,6 +140,10 @@ func build90CNOnlineScript(
 			if activeServer == sourceServerID {
 				record := append([]string(nil), fields[start:end]...)
 				id, _ := strconv.Atoi(record[0])
+				if disabledIDs != nil && disabledIDs[id] {
+					start = end
+					continue
+				}
 				channelType, _ := strconv.Atoi(record[2])
 				record[2] = strconv.Itoa(OnlineTypeFor90CN(id, channelType))
 				if id == bootstrapChannelID {