feat(hs): periodic scheduled start plugin + config + state

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/GameLogic/PlugIns/PeriodicTasks/HeykelSavasiGameServerState.cs

@@ -0,0 +1,23 @@
+// <copyright file="HeykelSavasiGameServerState.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameLogic.PlugIns.PeriodicTasks;
+
+/// <summary>
+/// The state of a game server state for a heykel savasi event.
+/// </summary>
+public class HeykelSavasiGameServerState : PeriodicTaskGameServerState
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="HeykelSavasiGameServerState"/> class.
+    /// </summary>
+    /// <param name="context">The context.</param>
+    public HeykelSavasiGameServerState(IGameContext context)
+        : base(context)
+    {
+    }
+
+    /// <inheritdoc />
+    public override string Description => "Heykel Savasi";
+}

src/GameLogic/PlugIns/PeriodicTasks/HeykelSavasiStartConfiguration.cs

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+// <copyright file="HeykelSavasiStartConfiguration.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameLogic.PlugIns.PeriodicTasks;
+
+/// <summary>
+/// The heykel savasi start configuration.
+/// </summary>
+public class HeykelSavasiStartConfiguration : MiniGameStartConfiguration
+{
+    /// <summary>
+    /// Gets the default configuration for heykel savasi.
+    /// </summary>
+    public static HeykelSavasiStartConfiguration Default =>
+        new()
+        {
+            PreStartMessageDelay = TimeSpan.Zero,
+            EntranceOpenedMessage = "Heykel Savasi entrance is open and closes in {0} minute(s).",
+            EntranceClosedMessage = "Heykel Savasi entrance closed.",
+            TaskDuration = TimeSpan.FromMinutes(20),
+            Timetable = new List<TimeOnly>
+            {
+                new(20, 0),
+                new(22, 0),
+            },
+        };
+}

src/GameLogic/PlugIns/PeriodicTasks/HeykelSavasiStartPlugIn.cs

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+// <copyright file="HeykelSavasiStartPlugIn.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameLogic.PlugIns.PeriodicTasks;
+
+using System.Runtime.InteropServices;
+using MUnique.OpenMU.GameLogic.MiniGames;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// This plugin enables the start of the heykel savasi event.
+/// </summary>
+[PlugIn]
+[Display(Name = nameof(HeykelSavasiStartPlugIn), Description = "Heykel Savasi event")]
+[Guid("2C6E1B4A-7F3D-4E9A-9B1C-3A6D2F8E5C7B")]
+public sealed class HeykelSavasiStartPlugIn : MiniGameStartBasePlugIn<HeykelSavasiStartConfiguration, HeykelSavasiGameServerState>
+{
+    /// <inheritdoc />
+    public override MiniGameType Key => MiniGameType.HeykelSavasi;
+
+    /// <inheritdoc />
+    public override object CreateDefaultConfig()
+    {
+        return HeykelSavasiStartConfiguration.Default;
+    }
+
+    /// <inheritdoc />
+    protected override HeykelSavasiGameServerState CreateState(IGameContext gameContext)
+    {
+        return new HeykelSavasiGameServerState(gameContext);
+    }
+}