make repair ships standby with rest of fleet if there is no one to repair (instead of advancing towards the enemy stations)

src/lib/ecs/system/ai/StandbyEvaluator.cpp

@@ -0,0 +1,16 @@
+#include "StandbyEvaluator.h"
+
+#include "BehaviorScores.h"
+#include "EntityAdmin.h"
+#include "StandbyBehavior.h"
+#include "tracing.h"
+
+void StandbyEvaluator::evaluate(EntityAdmin& admin)
+{
+    TRACE();
+    admin.forEach<StandbyBehavior>(
+        [](entt::entity /*e*/, StandbyBehavior& standby)
+        {
+            standby.score = BehaviorScores::kStandby;
+        });
+}