Layout System

Files
file	button_row_pool.gd
	Reusable fixed-row button pool for HUD bars, action slots, and menu rows.
file	field_menu_controller.gd
	Reusable active-run menu builder.
file	guidance_panel.gd
	Small reusable guidance panel for tutorials, lab pages, and active objectives.
file	layout_manager.gd
	Reusable UI layout helpers for responsive panels, navigation, modals, and scroll shells.
file	pause_overlay_controller.gd
	Reusable controller for pause overlays.
file	objective_panel.gd
	Reusable objective checklist renderer for active runs, quests, and tutorials.
file	resource_bar.gd
	Reusable outlined resource/progress bar renderer.
file	status_feed_manager.gd
	Reusable stacked toast/status feed for transient game messages.
file	ui_flow_manager.gd
	Reusable UI flow helpers for focus, tabs, simple screen visibility, and labels.

Detailed Description

Creates reusable responsive shells, bottom navigation, modal dialogs, save-slot rows, achievement views, pause overlays, density presets, and theme application helpers.