iter16ui T6：P3甲FS_*六档字号档位表立项（CAPTION12/HINT14/BODY16/SUB18/TITLE24/H1=34）+全库裸字号归档107位点（就近映射；4动态位点除外；settlement_fx两处span错位写入当场修复）+11px六处提FS_CAPTION并入P11豁免清单+art-bible §7.4档位表与豁免清单落文（条带内读数=血数一处；caption档逐处清单）；轻闸冒烟782/0+三探针+layout全绿

game/presentation/main.gd

@@ -335,7 +335,7 @@ func _build_ui() -> void:
 
 
 func _fatal_screen(msg: String) -> void:
-	var l := UiKit.label(msg, 20, true, UiKit.RED_ALERT)
+	var l := UiKit.label(msg,UiKit.FS_SUB, true, UiKit.RED_ALERT)
 	l.set_anchors_preset(Control.PRESET_CENTER)
 	add_child(l)