feat: add check for line of sight for range and skill attacks

Client/Domain/Service/AsyncPathMoverInterface.cs

@@ -11,6 +11,7 @@ namespace Client.Domain.Service
 {
     public interface AsyncPathMoverInterface
     {
+        public PathfinderInterface Pathfinder { get; }
         public ObservableCollection<PathSegment> Path { get; }
         public Task<bool> MoveAsync(Vector3 location);
         public Task MoveUntilReachedAsync(Vector3 location);

Client/Domain/Service/PathfinderInterface.cs

@@ -11,5 +11,6 @@ namespace Client.Domain.Service
     public interface PathfinderInterface
     {
         public List<PathSegment> FindPath(Vector3 start, Vector3 end);
+        public bool HasLineOfSight(Vector3 start, Vector3 end);
     }
 }