Add AI follow-up scoring experiment switch

src/main/cpp/net/eagle0/shardok/ai/AICommandEvaluator.cpp

@@ -155,10 +155,12 @@ static auto LeafMoveFollowUpScoreBonus(
 AICommandEvaluator::AICommandEvaluator(
         const AIScoreCalculator& scorer,
         const APDCache& apdCache,
-        BattalionTypeGetter battalionTypeGetter)
+        BattalionTypeGetter battalionTypeGetter,
+        const bool scoreMoveFollowUps)
     : scorer_(scorer),
       apdCache_(apdCache),
-      battalionTypeGetter_(std::move(battalionTypeGetter)) {}
+      battalionTypeGetter_(std::move(battalionTypeGetter)),
+      scoreMoveFollowUps_(scoreMoveFollowUps) {}
 
 auto AICommandEvaluator::PerformLookahead(
         const PlayerId pid,
@@ -293,7 +295,8 @@ auto AICommandEvaluator::EvaluateWithRandomness(
 
     const auto guessedCommands = guessedEngine.GetAvailableCommandsForAIPlayer(pid);
     const ScoreValue leafMoveFollowUpBonus =
-            remainingLookahead <= 0 ? LeafMoveFollowUpScoreBonus(guessedEngine, pid, commandIndex)
+            scoreMoveFollowUps_ && remainingLookahead <= 0
+                    ? LeafMoveFollowUpScoreBonus(guessedEngine, pid, commandIndex)
                     : 0.0;
     auto innerEngine = std::make_shared<ShardokEngine>(guessedEngine, false);
     try {

src/main/cpp/net/eagle0/shardok/ai/AICommandEvaluator.hpp

@@ -35,7 +35,8 @@ public:
     AICommandEvaluator(
             const AIScoreCalculator& scorer,
             const APDCache& apdCache,
-            BattalionTypeGetter battalionTypeGetter);  // Pass by value
+            BattalionTypeGetter battalionTypeGetter,
+            bool scoreMoveFollowUps = true);  // Pass by value
 
     /// Evaluates the score for a particular command index with lookahead.
     struct EvaluationResult {
@@ -79,6 +80,7 @@ private:
     const AIScoreCalculator& scorer_;
     const APDCache& apdCache_;
     BattalionTypeGetter battalionTypeGetter_;
+    bool scoreMoveFollowUps_;
 
     struct ImmediateAndLookaheadScore {
         ScoreValue immediateScore{};

src/main/cpp/net/eagle0/shardok/ai/IterativeDeepeningAI.cpp

@@ -44,14 +44,16 @@ IterativeDeepeningAI::IterativeDeepeningAI(
         const CoordsSet& castleCoords,
         const AIScoreCalculator& scorer,
         const APDCache& apdCache,
-        BattalionTypeGetter battalionTypeGetter)
+        BattalionTypeGetter battalionTypeGetter,
+        const bool scoreMoveFollowUps)
     : playerId(playerId),
       isDefender(isDefender),
       strategy(std::move(strategy)),
       castleCoords(castleCoords),
       scorer(scorer),
       apdCache(apdCache),
-      battalionTypeGetter(std::move(battalionTypeGetter)) {}
+      battalionTypeGetter(std::move(battalionTypeGetter)),
+      scoreMoveFollowUps(scoreMoveFollowUps) {}
 
 auto IterativeDeepeningAI::IterativeSearch(
         const GameSettingsSPtr& settings,
@@ -333,7 +335,7 @@ auto IterativeDeepeningAI::SearchCommandAtDepthWithEngine(
     const auto deadline = startTime + timeBudget.remainingBudget;
 
     // Create command evaluator for lookahead search
-    AICommandEvaluator evaluator(scorer, apdCache, battalionTypeGetter);
+    AICommandEvaluator evaluator(scorer, apdCache, battalionTypeGetter, scoreMoveFollowUps);
 
     // Get the future from EvaluateCommand - don't wait yet
     // Note: EvaluateCommand expects remainingLookahead, not desiredDepth

src/main/cpp/net/eagle0/shardok/ai/IterativeDeepeningAI.hpp

@@ -64,7 +64,8 @@ public:
             const CoordsSet& castleCoords,
             const AIScoreCalculator& scorer,
             const APDCache& apdCache,
-            BattalionTypeGetter battalionTypeGetter);  // Pass by value
+            BattalionTypeGetter battalionTypeGetter,
+            bool scoreMoveFollowUps);  // Pass by value
 
     [[nodiscard]] SearchResult IterativeSearch(
             const GameSettingsSPtr& settings,
@@ -80,6 +81,7 @@ private:
     const AIScoreCalculator& scorer;
     const APDCache& apdCache;
     BattalionTypeGetter battalionTypeGetter;
+    bool scoreMoveFollowUps;
 
     // Reusable vectors to reduce memory allocations
     mutable std::vector<std::vector<ScoreValue>> scoresByDepth;

src/main/cpp/net/eagle0/shardok/ai/ShardokAIClient.cpp

@@ -65,12 +65,14 @@ ShardokAIClient::ShardokAIClient(
         const SettingsGetter &settings,
         const AIAlgorithmType aiAlgorithmType,
         const ScoringCalculatorType scoringCalculatorType,
-        const mcts::MCTSConfig &mctsConfig)
+        const mcts::MCTSConfig &mctsConfig,
+        const bool scoreMoveFollowUps)
     : playerId(playerId),
       isDefender(isDefender),
       isAllAiBattle(isAllAiBattle),
       aiAlgorithmType(aiAlgorithmType),
       scoringCalculatorType(scoringCalculatorType),
+      scoreMoveFollowUps(scoreMoveFollowUps),
       alCache(std::make_unique<AttackLocationsCache>(hexMap, settings)),
       waterCrossingCommandChooser(playerId, apdCache),
       mctsConfig(mctsConfig) {
@@ -365,7 +367,8 @@ auto ShardokAIClient::StandardChooseCommandIndex(
                 castleCoords,
                 *scorer,
                 apdCache,
-                battalionTypeGetter);
+                battalionTypeGetter,
+                scoreMoveFollowUps);
         search_result =
                 ai.IterativeSearch(settings, guessedState, realAvailableCommands, timeBudget);
     }

src/main/cpp/net/eagle0/shardok/ai/ShardokAIClient.hpp

@@ -44,6 +44,7 @@ private:
     const bool isAllAiBattle;  // Whether this battle has only AI players (for faster time budgets)
     const AIAlgorithmType aiAlgorithmType;
     const ScoringCalculatorType scoringCalculatorType;
+    const bool scoreMoveFollowUps;
 
     APDCache apdCache = std::make_shared<ActionPointDistancesCache>();
     ALCache alCache;
@@ -75,7 +76,8 @@ public:
             const SettingsGetter& settings,
             AIAlgorithmType aiAlgorithmType,
             ScoringCalculatorType scoringCalculatorType,
-            const mcts::MCTSConfig& mctsConfig);
+            const mcts::MCTSConfig& mctsConfig,
+            bool scoreMoveFollowUps = true);
     ~ShardokAIClient() = default;
 
     [[nodiscard]] auto GetPlayerId() const -> PlayerId { return playerId; }

src/main/cpp/net/eagle0/shardok/ai_battle_simulator/AiBattleSimulator.cpp

@@ -571,6 +571,8 @@ std::unique_ptr<ShardokAIClient> AiBattleSimulator::CreateAIClient(
     const ScoringCalculatorType scoringType =
             ConvertScoringCalculatorType(playerConfig.scoring_calculator());
     const auto mctsConfig = BuildMCTSConfig(playerConfig, config_.random_seed(), playerId);
+    const bool scoreMoveFollowUps =
+            !playerConfig.has_score_move_follow_ups() || playerConfig.score_move_follow_ups();
 
     return ai_testing_common::AIClientFactory::Create(
             playerId,
@@ -580,7 +582,8 @@ std::unique_ptr<ShardokAIClient> AiBattleSimulator::CreateAIClient(
             algorithmType,
             scoringType,
             true,
-            mctsConfig);
+            mctsConfig,
+            scoreMoveFollowUps);
 }
 
 BattleResult AiBattleSimulator::RunSetupPhase(

src/main/cpp/net/eagle0/shardok/ai_testing_common/AIClientFactory.cpp

@@ -17,7 +17,8 @@ auto AIClientFactory::Create(
         AIAlgorithmType algorithmType,
         ScoringCalculatorType scoringType,
         bool isAllAiBattle,
-        mcts::MCTSConfig mctsConfig) -> std::unique_ptr<ShardokAIClient> {
+        mcts::MCTSConfig mctsConfig,
+        const bool scoreMoveFollowUps) -> std::unique_ptr<ShardokAIClient> {
     return std::make_unique<ShardokAIClient>(
             playerId,
             isDefender,
@@ -26,7 +27,8 @@ auto AIClientFactory::Create(
             settings,
             algorithmType,
             scoringType,
-            mctsConfig);
+            mctsConfig,
+            scoreMoveFollowUps);
 }
 
 }  // namespace shardok::ai_testing_common

src/main/cpp/net/eagle0/shardok/ai_testing_common/AIClientFactory.hpp

@@ -62,7 +62,8 @@ public:
             AIAlgorithmType algorithmType = AIAlgorithmType::ITERATIVE_DEEPENING,
             ScoringCalculatorType scoringType = ScoringCalculatorType::STANDARD,
             bool isAllAiBattle = false,
-            mcts::MCTSConfig mctsConfig = mcts::MCTSConfig{}) -> std::unique_ptr<ShardokAIClient>;
+            mcts::MCTSConfig mctsConfig = mcts::MCTSConfig{},
+            bool scoreMoveFollowUps = true) -> std::unique_ptr<ShardokAIClient>;
 };
 
 }  // namespace ai_testing_common

src/main/protobuf/net/eagle0/shardok/ai_battle_simulator/ai_battle_config.proto

@@ -126,6 +126,10 @@ message PlayerConfig {
 
     // MCTS settings, used only when ai_algorithm is MCTS.
     MctsConfig mcts_config = 4;
+
+    // Whether iterative deepening should add leaf-score bonuses for move follow-up actions.
+    // Defaults to true, matching production behavior.
+    optional bool score_move_follow_ups = 5;
 }
 
 // Complete battle configuration