feat: accent-bordered highlighting for programs installed in the last 7 days

Author: SysAdminDoc

src/DeepPurge.App/Views/MainWindow.xaml

@@ -668,6 +668,16 @@
                               ItemsSource="{Binding FilteredPrograms}"
                               SelectionChanged="Programs_SelectionChanged"
                               MouseDoubleClick="Programs_DoubleClick">
+                        <DataGrid.RowStyle>
+                            <Style TargetType="DataGridRow" BasedOn="{StaticResource {x:Type DataGridRow}}">
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding IsRecentlyInstalled}" Value="True">
+                                        <Setter Property="BorderBrush" Value="{DynamicResource AccentBrush}"/>
+                                        <Setter Property="BorderThickness" Value="3,0,0,0"/>
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </DataGrid.RowStyle>
                         <DataGrid.ContextMenu>
                             <ContextMenu>
                                 <MenuItem Header="Uninstall" Tag="&#xE74D;" Click="Uninstall_Click"/>

src/DeepPurge.Core/Models/InstalledProgram.cs

@@ -82,6 +82,20 @@ public string InstallDateDisplay
         }
     }
 
+    public bool IsRecentlyInstalled
+    {
+        get
+        {
+            if (string.IsNullOrEmpty(InstallDate) || InstallDate.Length != 8) return false;
+            try
+            {
+                var dt = DateTime.ParseExact(InstallDate, "yyyyMMdd", null);
+                return (DateTime.Now - dt).TotalDays <= 7;
+            }
+            catch { return false; }
+        }
+    }
+
     public bool HasUninstaller => !string.IsNullOrEmpty(UninstallString);
     public bool HasQuietUninstaller => !string.IsNullOrEmpty(QuietUninstallString);