频道列表增强：支持复制私密邀请链接

src/TelegramPanel.Core/Interfaces/IChannelService.cs

@@ -52,6 +52,11 @@ public interface IChannelService
     /// </summary>
     Task<bool> SetForwardingAllowedAsync(int accountId, long channelId, bool allowed);
 
+    /// <summary>
+    /// 导出频道加入链接：公开频道返回 t.me 链接；私密频道导出邀请链接（需要权限）。
+    /// </summary>
+    Task<string> ExportJoinLinkAsync(int accountId, long channelId);
+
     /// <summary>
     /// 获取频道管理员列表
     /// </summary>

src/TelegramPanel.Core/Services/Telegram/ChannelService.cs

@@ -431,6 +431,28 @@ public class ChannelService : IChannelService
         return true;
     }
 
+    public async Task<string> ExportJoinLinkAsync(int accountId, long channelId)
+    {
+        var client = await GetOrCreateConnectedClientAsync(accountId);
+        var channel = await GetChannelByIdAsync(client, channelId)
+            ?? throw new InvalidOperationException($"Channel {channelId} not found");
+
+        if (!string.IsNullOrWhiteSpace(channel.MainUsername))
+            return $"https://t.me/{channel.MainUsername}";
+
+        var invite = await client.Messages_ExportChatInvite(channel);
+        var link = invite switch
+        {
+            ChatInviteExported e => e.link,
+            _ => null
+        };
+
+        if (string.IsNullOrWhiteSpace(link))
+            throw new InvalidOperationException("无法导出邀请链接（可能无权限）");
+
+        return link;
+    }
+
     public async Task<List<ChannelAdminInfo>> GetAdminsAsync(int accountId, long channelId)
     {
         var client = await GetOrCreateConnectedClientAsync(accountId);

src/TelegramPanel.Web/Components/Pages/Channels.razor

@@ -2,9 +2,11 @@
 @inject ChannelManagementService ChannelManagement
 @inject AccountManagementService AccountManagement
 @inject TelegramPanel.Web.Services.DataSyncService DataSync
+@inject IChannelService ChannelService
 @inject ISnackbar Snackbar
 @inject IDialogService DialogService
 @inject NavigationManager Navigation
+@inject IJSRuntime JS
 @using TelegramPanel.Web.Components.Dialogs
 @using TelegramPanel.Data.Entities
 
@@ -100,7 +102,8 @@
                         <MudMenuItem Icon="@Icons.Material.Filled.Edit" OnClick="@(async () => await EditChannel(context))">编辑频道</MudMenuItem>
                         <MudMenuItem Icon="@Icons.Material.Filled.PersonRemove" OnClick="@(async () => await KickUser(context))">踢人</MudMenuItem>
                         <MudMenuItem Icon="@Icons.Material.Filled.PersonAdd" OnClick="@(() => InviteUsers(context))">邀请用户</MudMenuItem>
-                        <MudMenuItem Icon="@Icons.Material.Filled.Link" OnClick="@(() => CopyLink(context))">复制链接</MudMenuItem>
+                        <MudMenuItem Icon="@Icons.Material.Filled.Link" OnClick="@(async () => await CopyLinkAsync(context))">复制链接</MudMenuItem>
+                        <MudMenuItem Icon="@Icons.Material.Filled.Key" OnClick="@(async () => await CopyInviteAsync(context))">复制邀请链接</MudMenuItem>
                         <MudDivider />
                         <MudMenuItem Icon="@Icons.Material.Filled.Delete" IconColor="Color.Error" OnClick="@(() => DeleteChannel(context.Id))">删除频道</MudMenuItem>
                     </MudMenu>
@@ -281,12 +284,47 @@
         Navigation.NavigateTo($"/batch/invite?channelId={channel.Id}");
     }
 
-    private void CopyLink(Channel channel)
+    private async Task CopyLinkAsync(Channel channel)
     {
-        var link = string.IsNullOrEmpty(channel.Username)
-            ? $"私密频道（邀请链接待实现）"
-            : $"https://t.me/{channel.Username}";
-        Snackbar.Add($"链接：{link}", Severity.Info);
+        try
+        {
+            var executeAccountId = channel.CreatorAccountId ?? filterAccount;
+            if (executeAccountId <= 0)
+            {
+                Snackbar.Add("无法导出链接：请先选择账号或确保频道有创建账号", Severity.Warning);
+                return;
+            }
+
+            var link = await ChannelService.ExportJoinLinkAsync(executeAccountId, channel.TelegramId);
+
+            await JS.InvokeVoidAsync("telegramPanel.copyText", link);
+            Snackbar.Add("已复制链接", Severity.Success);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"复制失败：{ex.Message}", Severity.Error);
+        }
+    }
+
+    private async Task CopyInviteAsync(Channel channel)
+    {
+        try
+        {
+            var executeAccountId = channel.CreatorAccountId ?? filterAccount;
+            if (executeAccountId <= 0)
+            {
+                Snackbar.Add("无法导出邀请链接：请先选择账号或确保频道有创建账号", Severity.Warning);
+                return;
+            }
+
+            var link = await ChannelService.ExportJoinLinkAsync(executeAccountId, channel.TelegramId);
+            await JS.InvokeVoidAsync("telegramPanel.copyText", link);
+            Snackbar.Add("已复制邀请链接", Severity.Success);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"获取邀请失败：{ex.Message}", Severity.Error);
+        }
     }
 
     private async Task DeleteChannel(int id)