feat(hs): disable wings in-event + periodic HUD-state packet/broadcast

- HeykelSavasiContext.IsItemAllowedToEquip disallows wings/capes during
  Playing only (so entry is never rejected for wearing wings); auto-unequips
  any equipped wing/cape into a free inventory slot in OnGameStartAsync.
- New S2C packet HeykelSavasiHudState (C1, code FB, length 11) carrying
  phase, team, counts, statue progress and remaining seconds, plus its view
  plugin/interface, broadcast once per second across registration/prep/
  battle and one-shot on join/statue-break/game-end.

src/GameServer/RemoteView/MiniGames/HeykelSavasiHudStatePlugIn.cs

@@ -0,0 +1,39 @@
+// <copyright file="HeykelSavasiHudStatePlugIn.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameServer.RemoteView.MiniGames;
+
+using System.Runtime.InteropServices;
+using MUnique.OpenMU.GameLogic;
+using MUnique.OpenMU.GameLogic.Views.MiniGames;
+using MUnique.OpenMU.Network.Packets.ServerToClient;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// The default implementation of the <see cref="IHeykelSavasiHudStatePlugIn"/> which is forwarding everything to the game client with specific data packets.
+/// </summary>
+[PlugIn]
+[Guid("ef0cc7e9-07c6-4e60-afae-f8dd19332ad7")]
+public class HeykelSavasiHudStatePlugIn : IHeykelSavasiHudStatePlugIn
+{
+    private readonly RemotePlayer _player;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="HeykelSavasiHudStatePlugIn"/> class.
+    /// </summary>
+    /// <param name="player">The player.</param>
+    public HeykelSavasiHudStatePlugIn(RemotePlayer player) => this._player = player;
+
+    /// <inheritdoc/>
+    public async ValueTask UpdateHudStateAsync(byte phase, byte myTeam, byte redCount, byte blueCount, byte redProgress, byte blueProgress, ushort remainingSeconds)
+    {
+        var connection = this._player.Connection;
+        if (connection is null)
+        {
+            return;
+        }
+
+        await connection.SendHeykelSavasiHudStateAsync(phase, myTeam, redCount, blueCount, redProgress, blueProgress, remainingSeconds).ConfigureAwait(false);
+    }
+}