feat: redesign Bench page with Fluent card layout and radial advance monitor

Three-column layout replacing the old HMI grid:
- BenchRpmCommandCard: inline numeric input, 2×4 preset grid, Start/Stop
- BenchActuatorsCard: direction toggle, oil pump, temperature PID, misc relays
  with FluentStateToggle showing checked state via AccentFillColor
- BenchLiveDataCard: 2×5 KPI tiles (RPM, P1, P2, Q-Delivery, Q-Over, temps)
- BenchChartsCard: 2×2 compact chart grid (Delivery, Over, P1, P2)
- AdvanceMonitorCard: RadialAngleGauge custom FrameworkElement + PSG/INJ readouts,
  Δ° lock offset input, Zero PSG / Zero INJ buttons

Supporting changes:
- AngleDisplayViewModel: promote _currentManualDegrees, _isLockSet to
  [ObservableProperty]; add PsgRelativeDegrees, InjEncoderDegreesValue,
  TargetLockAngle, IsRunningMode (29/31 hysteresis); computed PrimaryGaugeAngle,
  TargetAngleForGauge, SecondaryGaugeAngle
- BenchControlViewModel: add IsDirectionLeft computed property,
  SetDirectionRightCommand, SetDirectionLeftCommand, ApplyRpmCommand
- FlowmeterChartView: add IsCompact DP (false default) for 90px compact height
- Styles.xaml: add IsChecked trigger to FluentStateToggle (accent fill + white text)
- Strings.en/es.xaml: add all new card and actuator string keys

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Views/UserControls/FlowmeterChartView.xaml.cs

@@ -1,3 +1,4 @@
+using System.Windows;
 using System.Windows.Controls;
 
 namespace HC_APTBS.Views.UserControls
@@ -5,9 +6,34 @@ namespace HC_APTBS.Views.UserControls
     /// <summary>
     /// UserControl hosting a single real-time flowmeter chart.
     /// DataContext is expected to be a <see cref="HC_APTBS.ViewModels.SingleFlowChartViewModel"/>.
+    /// Set <see cref="IsCompact"/> to <c>true</c> to reduce chart height to 90 px
+    /// (used in the 2×2 bench chart grid).
     /// </summary>
     public partial class FlowmeterChartView : UserControl
     {
+        /// <summary>When true the chart height shrinks from 120 to 90 px.</summary>
+        public static readonly DependencyProperty IsCompactProperty =
+            DependencyProperty.Register(nameof(IsCompact), typeof(bool), typeof(FlowmeterChartView),
+                new FrameworkPropertyMetadata(false,
+                    (d, e) => ((FlowmeterChartView)d).ChartHeight = (bool)e.NewValue ? 90.0 : 120.0));
+
+        public bool IsCompact
+        {
+            get => (bool)GetValue(IsCompactProperty);
+            set => SetValue(IsCompactProperty, value);
+        }
+
+        /// <summary>Derived chart height (120 or 90); bound in XAML.</summary>
+        public static readonly DependencyProperty ChartHeightProperty =
+            DependencyProperty.Register(nameof(ChartHeight), typeof(double), typeof(FlowmeterChartView),
+                new FrameworkPropertyMetadata(120.0));
+
+        public double ChartHeight
+        {
+            get => (double)GetValue(ChartHeightProperty);
+            set => SetValue(ChartHeightProperty, value);
+        }
+
         public FlowmeterChartView()
         {
             InitializeComponent();