feat: Implement core game managers, player movement logic, and initial UI scenes.

scripts/managers/player_movement_manager.gd

@@ -69,6 +69,10 @@ func simple_move_to(grid_position: Vector2i) -> bool:
 
 	# All checks passed, perform move
 	rotate_towards_target(grid_position)
+	
+	# Play walk animation
+	if player.has_method("play_walk_animation"):
+		player.play_walk_animation()
 
 	var path = [Vector2(player.current_position.x, player.current_position.y), Vector2(grid_position.x, grid_position.y)]
 	path.pop_front()