feat: Add player action and input managers to handle player actions, movement, targeting, and visual feedback.

scripts/managers/ui_manager.gd

@@ -35,10 +35,12 @@ enum ActionState {
 	MOVING,
 	GRABBING,
 	ARRANGING,
-	RANDOMIZING
+	RANDOMIZING,
+	TARGETING
 }
 
 var current_action_state = ActionState.NONE
+var pending_skill_id: int = -1
 
 func initialize(player_node):	
 	# Get PowerUp Inventory UI from scene