feat(mvp): complete M13 clean-up milestone (real usernames, avatar studio redesign, pause menu, audio manager)

scripts/wallet_ui.gd

@@ -27,6 +27,9 @@ signal back_requested
 @onready var page_label: Label = $VBox/LedgerSection/PagingHBox/PageLabel
 
 var _api_client: Node = null
+var AudioManager: Node:
+	get:
+		return get_node_or_null("/root/AudioManager")
 var current_page: int = 0
 const PAGE_SIZE: int = 20
 var total_tx_count: int = 0
@@ -72,6 +75,12 @@ func _on_back_pressed() -> void:
 		get_tree().change_scene_to_file("res://scenes/main_menu.tscn")
 
 
+func _unhandled_input(event: InputEvent) -> void:
+	if event.is_action_pressed("ui_cancel"):
+		get_viewport().set_input_as_handled()
+		_on_back_pressed()
+
+
 func show_status(text: String, is_error: bool = false) -> void:
 	if not status_label:
 		return
@@ -123,6 +132,7 @@ func _buy_pack(credits: int) -> void:
 	show_status("Processing purchase of %d Buffalo Chips..." % credits)
 	var res: Dictionary = await EconomyApiClient.purchase_credits(api, credits)
 	if res.ok and res.data is Dictionary:
+		AudioManager.play_coin()
 		var new_bal: int = int(res.data.get("new_balance", 0))
 		if balance_label:
 			balance_label.text = "%d Buffalo Chips" % new_bal