Add new "grant_connect_bypass" admin command (#26771)

This command allows you to grant a player temporary privilege to join regardless of player cap, whitelist, etc. It does not bypass bans.

The API for this is IConnectionManager.AddTemporaryConnectBypass().

I shuffled around the logic inside ConnectionManager. Bans are now checked before panic bunker.

Content.Server/Connection/GrantConnectBypassCommand.cs

@@ -0,0 +1,60 @@
+using Content.Server.Administration;
+using Content.Shared.Administration;
+using Robust.Shared.Console;
+
+namespace Content.Server.Connection;
+
+[AdminCommand(AdminFlags.Admin)]
+public sealed class GrantConnectBypassCommand : LocalizedCommands
+{
+    private static readonly TimeSpan DefaultDuration = TimeSpan.FromHours(1);
+
+    [Dependency] private readonly IPlayerLocator _playerLocator = default!;
+    [Dependency] private readonly IConnectionManager _connectionManager = default!;
+
+    public override string Command => "grant_connect_bypass";
+
+    public override async void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        if (args.Length is not (1 or 2))
+        {
+            shell.WriteError(Loc.GetString("cmd-grant_connect_bypass-invalid-args"));
+            return;
+        }
+
+        var argPlayer = args[0];
+        var info = await _playerLocator.LookupIdByNameOrIdAsync(argPlayer);
+        if (info == null)
+        {
+            shell.WriteError(Loc.GetString("cmd-grant_connect_bypass-unknown-user", ("user", argPlayer)));
+            return;
+        }
+
+        var duration = DefaultDuration;
+        if (args.Length > 1)
+        {
+            var argDuration = args[2];
+            if (!uint.TryParse(argDuration, out var minutes))
+            {
+                shell.WriteLine(Loc.GetString("cmd-grant_connect_bypass-invalid-duration", ("duration", argDuration)));
+                return;
+            }
+
+            duration = TimeSpan.FromMinutes(minutes);
+        }
+
+        _connectionManager.AddTemporaryConnectBypass(info.UserId, duration);
+        shell.WriteLine(Loc.GetString("cmd-grant_connect_bypass-success", ("user", argPlayer)));
+    }
+
+    public override CompletionResult GetCompletion(IConsoleShell shell, string[] args)
+    {
+        if (args.Length == 1)
+            return CompletionResult.FromHint(Loc.GetString("cmd-grant_connect_bypass-arg-user"));
+
+        if (args.Length == 2)
+            return CompletionResult.FromHint(Loc.GetString("cmd-grant_connect_bypass-arg-duration"));
+
+        return CompletionResult.Empty;
+    }
+}