GUI 2.4.3

Changed

• DelayTimerToggle scaled up ~25% for touchscreen legibility: button
  hit area 32×32 → 40×40, icon canvas 24×24 → 30×30. Geometries stay
  authored against the 24-viewport — the Path now uses
  Stretch="Uniform" with explicit Width="30" Height="30" so the
  existing clock-face / arc constants render at the new size and the
  stroke renders proportionally bolder. iconText font size 10 → 13.
  The "Timer" caption in UIPrelimSettings (Step 1 + Step 4) now
  carries FontSize="14" FontWeight="SemiBold" with a 4 px top margin
  so it reads at glance distance.
• UIReport ScrollViewer gains PanningMode="VerticalOnly" so the
  report body pans by finger drag, not just mouse wheel.
• StepCardNavigator no longer enables IsManipulationEnabled on its
  root grid or wires the Manipulation* event pipeline. Touch swipes
  still work via Windows' touch→mouse promotion against the existing
  Swipe_Mouse* handlers; removing the manipulation container unblocks
  taps on descendant controls inside a StepCard that don't have their
  own touch handlers (the SegmentedToggle RadioButtons and the inner
  Button in DelayTimerToggle), which previously had their touches
  captured by the manipulation pipeline.
• UpdateWindow release notes now show the markdown changelog body
  instead of "Release notes: <url>". Added
  GHReleaseTracker.GetReleaseByTagAsync(tag) and a regex-parser in
  MainApp that extracts owner/repo/tag from the manifest entry's
  notesUrl (HTML release-page URL), then fetches the release body
  anonymously through the GitHub Releases API. Falls back to the
  previous "Release notes: " line on parse/fetch failure (rate
  limit, offline, schema drift). One launch-time fetch fits well
  inside the 60 req/hr anonymous rate limit.
• Removed the redundant sp.WriteCmd("BK") in UIEvaluation.btnMeasure_Click
  for AROM mode. Check_CurrentUI already sets the motor to RL when
  AROM is selected, and after 0a7a5cf the in-line BK was actively
  wrong for the page's current convention.

Fixed

• Wrapper buttons (ImageButton, ActionButton, IconButton,
  IconToggleButton) no longer double-fire on touch. Touch hardware
  that emits parallel WM_LBUTTON alongside WM_TOUCH (common on
  Windows touchscreens) caused both the manual click raised from
  TouchUp AND the inner Button.Click from the mouse-promoted
  message to fire, raising the outer Click event twice. On the eval
  Start/Stop ImageButton this flipped IsPressed back to its
  starting value, so the icon/text never swapped on touch even though
  the underlying handler ran. Each wrapper now guards its inner click
  handler so the mouse-promoted call following a touch is suppressed
  (cleared on the next Input-priority dispatch). IconToggleButton
  additionally hooks PreviewMouseLeftButtonUp so ButtonBase.OnClick
  doesn't toggle IsChecked a second time after the touch path has
  manually swapped it; the touch handler now sets IsChecked before
  raising Toggle so subscribers reading EmgPlotBtn.IsChecked /
  ModePlotBtn.IsChecked see the new state.
• UICoverFlow.Load_GameList crashed with NullReferenceException on
  the foreach (var game in gameLibrary) when the user added or
  deleted a game from UIGameLib on a fresh launch — UICoverFlow's
  gameLibrary field is only wired in Load_GameProtocol, which
  doesn't run until the user first enters the Game task. Null-guard
  Refresh_GameList and Load_GameList; keep IsChanged = true when
  bailing so the pending refresh resolves once Load_GameLibrary
  eventually runs.
• UIGameLib.btnAddGame_Click / btnDeleteGame_Click could fire
  before Initialize_Variables wired mainApp, NRE-ing on
  mainApp.uiGames.IsChanged = true. Adds EnsureReady() (refreshes
  the local MainApp.GameLibrary reference and null-checks mainApp)
  at the top of every mutation handler; toggleDisplay_Changed
  null-guards mainApp directly since it fires from the per-item
  IsChecked binding during initial materialization, before
  Initialize_Gamelist runs. btnDeleteGame_Click also captures the
  target GameInfo from the row's Tag up front instead of
  round-tripping through lstGames.SelectedItem — the
  dispatcher-pumping MessageBox.Show could otherwise null out the
  selection mid-handler.
• UIGameLib could operate on a stale MainApp.GameLibrary
  reference: Initialize_Settings reassigns the static field to a new
  ObservableCollection AFTER uiGameLib_Loaded has captured the
  original empty one. Subsequent adds/removes mutated the orphan
  collection while Save_GameLibrary persisted the live one,
  silently losing entries on disk. SyncGameLibraryRef() re-fetches
  the current static reference and rebinds lstGames.ItemsSource
  whenever the instance changes.
• AR01BleClient.WriteToCsv crashed with ArgumentNullException when
  the data-saving state was toggled quickly enough that evalTrialsFile
  / prelimSummaryFile was still null (or had been cleared by a
  Stop/disconnect) at the moment a record was queued. The existing
  catch (IOException) didn't cover argument exceptions, so the
  throw escaped and killed the app. Early-out with a BleLogger line
  when fileName is null/empty or the records collection is null;
  also catches UnauthorizedAccessException so a read-only attribute
  or AV lock on the data file is never session-fatal.