iter49-卡2：模态句柄分域批(句柄册三域化):UiModals 14→3纯字段容器+run/menu两新子容器+ModalFlow升格注册面直驻+全仓寻址换代+V1结构断言

game/tests/unit/presentation/pacing_queue_test.gd

@@ -58,7 +58,7 @@ func _init() -> void:
 	main._start_adventure_from_menu()
 	await process_frame
 	# 入口停点选路进首战（真实停点链）
-	if not main.ui.modals.level_screen.visible:
+	if not main.ui.modals.run.level_screen.visible:
 		_problems.append("入口停点未呈现（前置失守）")
 		_finish()
 		return

game/tests/unit/presentation/theme_projection_test.gd

@@ -716,7 +716,7 @@ func _smoke_diag_button_retired() -> void:
 	Kit.check("V6 主区无 build_diag_button 调用残留（旧实现同批清理）",
 		not main_src.contains("build_diag_button"))
 	Kit.check("V6 转储入口连接随迁（组合根经注册面接浮窗 diagnose_requested 信号）〔注册面 V2〕",
-		main_src.contains("ui.modals.debug_overlay.diagnose_requested.connect(_on_diagnose_pressed)"))
+		main_src.contains("ui.modals.menu.debug_overlay.diagnose_requested.connect(_on_diagnose_pressed)"))
 	Kit.check("V6 转储编排承接函数在位（dump_diagnosis 卡死取证保留）",
 		main_src.contains("func _on_diagnose_pressed()"))
 	var asm_src: String = FileAccess.get_file_as_string("res://presentation/ui_assembler.gd")