fix candy_survival ghost and knock input mapping, hook ghost into player transparency, fix hud layout missing UI nodes

scripts/managers/player_input_manager.gd

@@ -101,6 +101,26 @@ func handle_unhandled_input(event):
 
 		# 2. Action Buttons (Remappable via InputMap)
 		if event.is_action_pressed("action_knock_tekton"):
+			if LobbyManager.game_mode == "Candy Survival":
+				var gm = player.get_node_or_null("/root/Main/CandySurvivalManager")
+				if gm and gm.is_active:
+					# Find a target to knock (first adjacent player)
+					var p_pos = player.current_position
+					var all_players = get_tree().get_nodes_in_group("Players")
+					for other in all_players:
+						if other == player: continue
+						var other_pos = other.current_position
+						if abs(p_pos.x - other_pos.x) + abs(p_pos.y - other_pos.y) == 1:
+							# Adjacent
+							var att_id = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+							var tgt_id = other.get("peer_id") if "peer_id" in other else other.name.to_int()
+							if multiplayer.is_server():
+								gm.try_knock(att_id, tgt_id)
+							else:
+								gm.rpc_id(1, "try_knock", att_id, tgt_id)
+							get_viewport().set_input_as_handled()
+							return
+							
 			if player.powerup_manager:
 				player.powerup_manager.use_special_effect()
 				if player.get("is_attack_mode") and player.has_method("enter_attack_mode"):
@@ -108,6 +128,17 @@ func handle_unhandled_input(event):
 			get_viewport().set_input_as_handled()
 					
 		elif event.is_action_pressed("action_grab_tekton"):
+			if LobbyManager.game_mode == "Candy Survival":
+				var gm = player.get_node_or_null("/root/Main/CandySurvivalManager")
+				if gm and gm.is_active:
+					var pid = player.get("peer_id") if "peer_id" in player else player.name.to_int()
+					if multiplayer.is_server():
+						gm.try_activate_ghost(pid)
+					else:
+						gm.rpc_id(1, "try_activate_ghost", pid)
+					get_viewport().set_input_as_handled()
+					return
+					
 			if not player.is_carrying_tekton:
 				if player.powerup_manager and player.powerup_manager.has_method("can_use_special"):
 					player.grab_tekton()