feat: position rotation every 10 games in self-play

--mix-rotate: 每10局轮换bot排列
[ISMCTS,ISMCTS,NEURAL] → [NEURAL,ISMCTS,ISMCTS] → [ISMCTS,NEURAL,ISMCTS]
Neural 三个位置都练到, 数据分布平衡
orchestrator改用--mix-rotate替换--mix

hjha-console/Program.cs

@@ -7,10 +7,18 @@ namespace hjha_console
 {
     class Program
     {
+        public static int RotateInterval = 0; // 0=disabled, N=rotate every N rounds
+        private static readonly string[][] Rotations = new[] {    // 3种排列
+            new[] { "ISMCTS", "ISMCTS", "NEURAL" },
+            new[] { "NEURAL", "ISMCTS", "ISMCTS" },
+            new[] { "ISMCTS", "NEURAL", "ISMCTS" }
+        };
+
         static void Main(string[] args)
         {
             if (args.Length > 0 && args[0] == "--eval") { PdkGameMain.BotTypes = new[] { "ISMCTS", "ISMCTS", "NEURAL" }; TrainingCollector.Enabled = false; args = new[] { "--stress", args.Length > 1 ? args[1] : "10" }; }
             if (args.Length > 0 && args[0] == "--mix") { PdkGameMain.BotTypes = new[] { "ISMCTS", "ISMCTS", "NEURAL" }; TrainingCollector.Enabled = true; args = new[] { "--stress", args.Length > 1 ? args[1] : "10" }; }
+            if (args.Length > 0 && args[0] == "--mix-rotate") { PdkGameMain.BotTypes = new[] { "ISMCTS", "ISMCTS", "NEURAL" }; TrainingCollector.Enabled = true; Program.RotateInterval = 10; args = new[] { "--stress", args.Length > 1 ? args[1] : "10" }; }
             if (args.Length > 0 && args[0] == "--mix-ismcts") { PdkGameMain.BotTypes = new[] { "ISMCTS", "ISMCTS", "ISMCTS" }; TrainingCollector.Enabled = true; args = new[] { "--stress", args.Length > 1 ? args[1] : "10" }; }
             if (args.Length > 0 && args[0] == "--bots") { PdkGameMain.BotTypes = args[1].Split(','); TrainingCollector.Enabled = true; args = args.Length > 2 ? new[] { "--stress", args[2] } : new[] { "--stress", "10" }; }
             if (args.Length > 0 && args[0] == "--stress")
@@ -52,6 +60,13 @@ namespace hjha_console
 
             for (int r = 1; r <= totalRounds; r++)
             {
+                // 位置轮换: 每N局切换排列
+                if (RotateInterval > 0 && (r - 1) % RotateInterval == 0)
+                {
+                    int ri = ((r - 1) / RotateInterval) % Rotations.Length;
+                    PdkGameMain.BotTypes = Rotations[ri];
+                }
+
                 var roundSw = Stopwatch.StartNew();
                 try
                 {

scripts/training_orchestrator.py

@@ -41,7 +41,7 @@ def selfplay(games):
     env['PATH'] = f"/usr/lib/dotnet:{env.get('PATH','')}"
     
     ok, out = run(['/usr/lib/dotnet/dotnet', 'run', '--project', 'hjha-console', '-c', 'Release',
-                   '--', '--mix', str(games)], to=max(36000, games*2))
+                   '--', '--mix-rotate', str(games)], to=max(36000, games*2))
     
     csv = len(glob.glob(os.path.join(td, 'game_*.csv')))
     sf = os.path.join(HJHA_DIR, 'stress_summary.txt')