feat: complete mobile UI implementation

project/ui/party_ui.gd

@@ -44,6 +44,7 @@ var _dist_btn: Button
 var _heal_btn: Button
 var _notice: Label
 var _role_popup: Control = null
+var _mobile_mode := false
 
 func setup(m2client: Node, parent: Node, dlg: Node = null) -> void:
 	client = m2client
@@ -66,6 +67,15 @@ func close() -> void:
 	if _root:
 		_root.visible = false
 
+# MobileUiRoot owns the compact party strip beneath the player avatar.  Keep
+# this controller alive for server updates, but hide its desktop window.
+func set_mobile_mode(enabled: bool) -> void:
+	_mobile_mode = enabled
+	if enabled:
+		_dismiss_role_popup()
+		if _root:
+			_root.visible = false
+
 # --- 로컬 플레이어가 파티장인가 ---
 func _local_is_leader() -> bool:
 	if client == null or not client.has_method("get_main_vid"):
@@ -86,6 +96,9 @@ func refresh() -> void:
 		_list.remove_child(c)
 		c.queue_free()
 	var members: Array = client.get_party()
+	if _mobile_mode:
+		_root.visible = false
+		return
 	_root.visible = not members.is_empty()
 	if members.is_empty():
 		return