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」

launcher/index.html

@@ -3,7 +3,7 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>90轮回</title>
+<title>DNF90 灵狐小竹整合单机版</title>
 <link rel="stylesheet" href="/style.css">
 <link rel="stylesheet" href="/shell.css">
 </head>
@@ -22,12 +22,13 @@
   <header class="shell-topnav">
     <div class="shell-brand">
       <div class="shell-logo">90</div>
-      <div><b>90轮回</b><span>启动器 <em>v2.1.0</em></span></div>
+      <div><b>灵狐小竹</b><span>启动器 <em>v2.1.0</em></span></div>
     </div>
     <nav class="shell-nav">
       <button class="shell-nav-item active" data-shell-page="start"><span class="nav-ico">▶</span>开始</button>
       <button class="shell-nav-item" data-shell-page="gm"><span class="nav-ico">⚙</span>GM工具</button>
       <button class="shell-nav-item" data-shell-page="loadout"><span class="nav-ico">🔄</span>一键换装</button>
+      <button class="shell-nav-item" data-shell-page="gamesettings"><span class="nav-ico">🎮</span>游戏设置</button>
       <div class="shell-nav-gap"></div>
       <button class="shell-nav-item" data-shell-page="settings"><span class="nav-ico">⚙</span>设置</button>
       <button class="shell-nav-item" data-shell-page="changelog"><span class="nav-ico">📜</span>游戏更新</button>
@@ -48,7 +49,7 @@
         <div class="hero-bg"></div>
         <div class="hero-content">
           <div class="hero-kicker">DNF · 90级 · 本地服务端</div>
-          <h1 id="shellServerName">Server90轮回</h1>
+          <h1 id="shellServerName">DNF90 灵狐小竹整合单机版</h1>
           <div class="hero-status">
             <span class="live-dot" id="shellStatusDot"></span>
             <span id="shellStatusText">检测中…</span>
@@ -122,6 +123,24 @@
       </div>
     </section>
 
+    <section class="shell-page" id="page-gamesettings">
+      <div class="page-pad">
+        <div class="page-heading"><div><h2>游戏设置</h2><p class="muted">调整服务端频道与活动；改动实时生效，无需重启。</p></div><button class="shell-btn" id="gsRefresh">刷新</button></div>
+        <div class="st-tabs" id="gsTabs">
+          <button class="st-tab active" data-gs="channels">频道开关</button>
+          <button class="st-tab" data-gs="activities">活动开关</button>
+        </div>
+        <div id="gsChannelsPane">
+          <div class="gs-summary muted" id="gsChannelSummary">正在加载频道…</div>
+          <div class="gs-grid" id="gsChannelGrid"><div class="empty-box">加载中…</div></div>
+        </div>
+        <div id="gsActivitiesPane" style="display:none">
+          <div class="gs-summary muted" id="gsActivitySummary">正在加载活动…</div>
+          <div class="gs-list" id="gsActivityList"><div class="empty-box">加载中…</div></div>
+        </div>
+      </div>
+    </section>
+
     <section class="shell-page" id="page-changelog">
       <div class="page-pad"><h2>游戏更新</h2><p class="muted">从自托管仓库（Lingbao/90CNServer）的发布记录自动获取。</p><div id="changelogBody"></div></div>
     </section>
@@ -160,7 +179,7 @@
 <div class="win-resize nw" data-edge="topleft"></div><div class="win-resize ne" data-edge="topright"></div>
 <div class="win-resize sw" data-edge="bottomleft"></div><div class="win-resize se" data-edge="bottomright"></div>
 
-<div class="modal-mask hidden" id="sponsorModal"><div class="modal"><div class="modal-head"><span>赞助我们</span><button class="modal-close" id="btnCloseSponsor">×</button></div><div class="modal-body"><p class="sponsor-tip">感谢支持 DNF90 单机模拟器！</p><div class="qrcode-box" id="qrcodeBox"></div></div></div></div>
+<div class="modal-mask hidden" id="sponsorModal"><div class="modal"><div class="modal-head"><span>赞助我们</span><button class="modal-close" id="btnCloseSponsor">×</button></div><div class="modal-body"><p class="sponsor-tip">感谢支持 DNF90 灵狐小竹整合单机版！</p><div class="qrcode-box" id="qrcodeBox"></div></div></div></div>
 <div class="modal-mask hidden" id="accountsModal"><div class="modal" style="width:520px"><div class="modal-head"><span>账号管理</span><button class="modal-close" id="btnCloseAccounts" onclick="document.getElementById('accountsModal').classList.add('hidden')">×</button></div><div class="modal-body" style="text-align:left"><div id="accountsList" style="margin-bottom:16px"></div><div class="accounts-add"><div class="accounts-add-title">添加新账号</div><div class="gm-form-row"><div class="gm-field"><label>用户名</label><input class="gm-input" id="newAccUser"></div><div class="gm-field"><label>密码</label><input class="gm-input" id="newAccPass" type="password"></div></div><button class="gm-btn gm-btn-primary" id="btnAddAccount">＋ 添加账号</button></div></div></div></div>
 
 <script src="/app.js"></script>