fix: 修复欢迎板和通知板通知无法关闭问题

- 修复欢迎板和通知板当前被ChatUI 抢占鼠标问题，通过设置启动弹窗时ChatUI 根节点 mouse_filter 临时改为 IGNORE来实现
- ToDo: 后续统一规划事件逻辑

scenes/ui/NoticeDialog.gd

@@ -31,10 +31,14 @@ var pages = [
 var current_page = 0
 var tween: Tween
 var mock_pages = []
+var _chat_ui: Control
+var _chat_ui_prev_mouse_filter: int = Control.MOUSE_FILTER_STOP
+var _chat_ui_mouse_disabled: bool = false
 
 func _ready():
 	# Pause the game
 	get_tree().paused = true
+	_disable_chat_ui_mouse_input()
 	
 	$CenterContainer/PanelContainer/VBoxContainer/Header/RightContainer/CloseButton.pressed.connect(_on_close_pressed)
 	prev_btn.pressed.connect(_on_prev_pressed)
@@ -50,6 +54,9 @@ func _ready():
 	_setup_dots()
 	_update_ui(false) 
 
+func _exit_tree():
+	_restore_chat_ui_mouse_input()
+
 func _on_notices_response(success: bool, data: Dictionary, _error_info: Dictionary):
 	var new_pages = []
 	if success and data.has("data") and data["data"] is Array:
@@ -154,3 +161,23 @@ func _on_close_pressed():
 	# Unpause the game
 	get_tree().paused = false
 	queue_free()
+
+func _disable_chat_ui_mouse_input():
+	var current_scene = get_tree().current_scene
+	if current_scene:
+		_chat_ui = current_scene.get_node_or_null("UILayer/ChatUI") as Control
+
+	if _chat_ui == null:
+		_chat_ui = get_tree().root.find_child("ChatUI", true, false) as Control
+
+	if _chat_ui:
+		_chat_ui_prev_mouse_filter = _chat_ui.mouse_filter
+		_chat_ui.mouse_filter = Control.MOUSE_FILTER_IGNORE
+		_chat_ui_mouse_disabled = true
+
+func _restore_chat_ui_mouse_input():
+	if _chat_ui_mouse_disabled and is_instance_valid(_chat_ui):
+		_chat_ui.mouse_filter = _chat_ui_prev_mouse_filter
+
+	_chat_ui_mouse_disabled = false
+	_chat_ui = null