feat(hs): warp teams to base on start + cancel if a team is empty

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

src/GameLogic/MiniGames/HeykelSavasiContext.cs

@@ -8,6 +8,7 @@ using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using MUnique.OpenMU.DataModel.Configuration;
 
 /// <summary>
@@ -62,6 +63,15 @@ public class HeykelSavasiContext : MiniGameContext
     {
     }
 
+    /// <summary>
+    /// Gets a value indicating whether players are allowed to kill each other.
+    /// </summary>
+    /// <remarks>
+    /// This does not prevent friendly fire (team members killing each other); that restriction
+    /// is added separately via a <see cref="Player"/> hook in a later phase.
+    /// </remarks>
+    public override bool AllowPlayerKilling => this.State == MiniGameState.Playing;
+
     /// <summary>
     /// Gets the current number of players assigned to the given team.
     /// </summary>
@@ -115,6 +125,27 @@ public class HeykelSavasiContext : MiniGameContext
     /// <returns>All players assigned to <paramref name="team"/>.</returns>
     public IEnumerable<Player> PlayersOf(HeykelSavasiTeam team) => this._teams.Where(kv => kv.Value == team).Select(kv => kv.Key);
 
+    /// <inheritdoc />
+    /// <remarks>
+    /// Cancels the event if either team is empty at start (no opponent to fight); otherwise
+    /// warps every participant to their team's base spawn gate.
+    /// </remarks>
+    protected override async ValueTask OnGameStartAsync(ICollection<Player> players)
+    {
+        await base.OnGameStartAsync(players).ConfigureAwait(false);
+
+        if (this.TeamCount(HeykelSavasiTeam.Red) == 0 || this.TeamCount(HeykelSavasiTeam.Blue) == 0)
+        {
+            this.FinishEvent();
+            return;
+        }
+
+        foreach (var player in players)
+        {
+            await player.WarpToAsync(this.GetTeamSpawnGate(this.GetTeam(player))).ConfigureAwait(false);
+        }
+    }
+
     /// <summary>
     /// Determines, in a pure way, whether joining <paramref name="team"/> is allowed given the current
     /// team counts, according to the balance rule: the absolute difference between the red and blue