refactor AI system

src/lib/ecs/component/SelectedBehaviorComponent.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "BehaviorKind.h"
+
+// Result of the AiSystem selection pass: the highest-scoring behavior for a
+// ship this tick. Each behavior's executor acts only when it is the winner.
+struct SelectedBehaviorComponent
+{
+    BehaviorKind winner    = BehaviorKind::None;
+    float        bestScore = 0.0f;
+};