feat: Dismiss Selected in context menu + View Log sidebar button

Dashboard/Controls/AlertsHistoryContent.xaml

@@ -33,6 +33,10 @@
                 <MenuItem Header="Mute Similar Alerts..." Click="MuteSimilarAlerts_Click">
                     <MenuItem.Icon><TextBlock Text="&#x1F507;"/></MenuItem.Icon>
                 </MenuItem>
+                <Separator/>
+                <MenuItem Header="Dismiss Selected" Click="DismissSelected_Click">
+                    <MenuItem.Icon><TextBlock Text="&#x2717;"/></MenuItem.Icon>
+                </MenuItem>
             </ContextMenu>
 
             <Style x:Key="DefaultRowStyle" TargetType="DataGridRow">

Dashboard/MainWindow.xaml

@@ -217,6 +217,15 @@
                             Height="28"
                             Margin="0,0,0,12"/>
                     <Separator/>
+                    <Button Click="ViewLogButton_Click"
+                            Height="28"
+                            Margin="0,8,0,6"
+                            ToolTip="Open the current application log file">
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock Text="&#xE7BA;" FontFamily="Segoe MDL2 Assets" FontSize="12" VerticalAlignment="Center" Margin="0,0,6,0"/>
+                            <TextBlock Text="View Log" VerticalAlignment="Center"/>
+                        </StackPanel>
+                    </Button>
                     <Button x:Name="SettingsButton"
                             Click="Settings_Click"
                             Height="28"

Dashboard/MainWindow.xaml.cs

@@ -1092,6 +1092,35 @@ private void Help_Click(object sender, RoutedEventArgs e)
             dialog.ShowDialog();
         }
 
+        private void ViewLogButton_Click(object sender, RoutedEventArgs e)
+        {
+            var logFile = Logger.GetCurrentLogFile();
+            try
+            {
+                if (System.IO.File.Exists(logFile))
+                {
+                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo
+                    {
+                        FileName = logFile,
+                        UseShellExecute = true
+                    });
+                }
+                else
+                {
+                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo
+                    {
+                        FileName = Logger.GetLogDirectory(),
+                        UseShellExecute = true
+                    });
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"Could not open log file: {ex.Message}", "Error",
+                    MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+        }
+
         /// <summary>
         /// Exposes the AlertStateService for coordination with LandingPage.
         /// </summary>

Lite/Controls/AlertsHistoryTab.xaml

@@ -32,6 +32,10 @@
                 <MenuItem Header="Mute Similar Alerts..." Click="MuteSimilarAlerts_Click">
                     <MenuItem.Icon><TextBlock Text="&#x1F507;"/></MenuItem.Icon>
                 </MenuItem>
+                <Separator/>
+                <MenuItem Header="Dismiss Selected" Click="DismissSelected_Click">
+                    <MenuItem.Icon><TextBlock Text="&#x2717;"/></MenuItem.Icon>
+                </MenuItem>
             </ContextMenu>
 
             <Style x:Key="DefaultRowStyle" TargetType="DataGridRow">

Lite/MainWindow.xaml

@@ -184,6 +184,13 @@
                                 <TextBlock Text="Import Settings" VerticalAlignment="Center"/>
                             </StackPanel>
                         </Button>
+                        <Button Click="ViewLogButton_Click" Margin="0,8,0,0"
+                                ToolTip="Open the current application log file">
+                            <StackPanel Orientation="Horizontal">
+                                <TextBlock Text="&#xE7BA;" FontFamily="Segoe MDL2 Assets" FontSize="12" VerticalAlignment="Center" Margin="0,0,6,0"/>
+                                <TextBlock Text="View Log" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </Button>
                         <Button x:Name="SettingsButton" Click="SettingsButton_Click" Margin="0,8,0,0">
                             <StackPanel Orientation="Horizontal">
                                 <TextBlock Text="&#xE713;" FontFamily="Segoe MDL2 Assets" FontSize="12" VerticalAlignment="Center" Margin="0,0,6,0"/>

Lite/MainWindow.xaml.cs

@@ -865,6 +865,35 @@ private void AboutButton_Click(object sender, RoutedEventArgs e)
         window.ShowDialog();
     }
 
+    private void ViewLogButton_Click(object sender, RoutedEventArgs e)
+    {
+        var logFile = AppLogger.GetCurrentLogFile();
+        try
+        {
+            if (System.IO.File.Exists(logFile))
+            {
+                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo
+                {
+                    FileName = logFile,
+                    UseShellExecute = true
+                });
+            }
+            else
+            {
+                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo
+                {
+                    FileName = AppLogger.GetLogDirectory(),
+                    UseShellExecute = true
+                });
+            }
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show($"Could not open log file: {ex.Message}", "Error",
+                MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+    }
+
     private void ImportSettingsButton_Click(object sender, RoutedEventArgs e)
     {
         var dialog = new Microsoft.Win32.OpenFolderDialog