v1.16 — Remove PowerShell edition, restore flat project structure

PowerShell version removed — will use OV code signing certificate instead.
Files moved back from src/ to project root.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Pages/TroubleshootPage.xaml

@@ -0,0 +1,51 @@
+<Page x:Class="InstaSoftOfficeTool.Pages.TroubleshootPage"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      Background="Transparent">
+
+    <Grid Margin="40,30">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="Auto"/>
+        </Grid.RowDefinitions>
+
+        <!-- Title -->
+        <StackPanel Grid.Row="0" Margin="0,0,0,16">
+            <TextBlock Text="Licenc-kezelés" FontSize="24" FontWeight="Light"/>
+            <TextBlock Text="Office licenc állapot lekérdezése, aktiválás és termékkulcsok kezelése"
+                       FontSize="14" Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0"/>
+        </StackPanel>
+
+        <!-- Key cards (scrollable) -->
+        <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" Margin="0,0,0,8">
+            <StackPanel x:Name="KeyCardsPanel"/>
+        </ScrollViewer>
+
+        <!-- Details expander -->
+        <Expander x:Name="DetailsExpander" Grid.Row="2" Header="Részletek" FontSize="13"
+                  Margin="0,0,0,8" Expanded="DetailsExpander_Expanded" Collapsed="DetailsExpander_Collapsed">
+            <StackPanel Margin="0,8,0,0">
+                <TextBlock x:Name="OsppPathText" FontSize="12"
+                           Foreground="{StaticResource TextSecondaryBrush}" Margin="0,0,0,6"/>
+                <Border Background="#F8F8F8" CornerRadius="4" Padding="10"
+                        BorderBrush="{StaticResource BorderBrush}" BorderThickness="1">
+                    <TextBox x:Name="OutputText" FontFamily="Consolas" FontSize="11"
+                             TextWrapping="Wrap" Foreground="{StaticResource TextSecondaryBrush}"
+                             IsReadOnly="True" Background="Transparent" BorderThickness="0"
+                             VerticalScrollBarVisibility="Auto" AcceptsReturn="True"
+                             Height="85"/>
+                </Border>
+            </StackPanel>
+        </Expander>
+
+        <!-- Buttons -->
+        <StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Right" Margin="0,4,0,0">
+            <Button x:Name="BtnRefresh" Content="Állapot frissítése" Style="{StaticResource SecondaryButton}"
+                    Click="BtnRefresh_Click" Margin="0,0,8,0"/>
+            <Button x:Name="BtnRemoveAll" Content="Összes kulcs eltávolítása" Style="{StaticResource PrimaryButton}"
+                    Click="BtnRemoveAll_Click" IsEnabled="False" Visibility="Collapsed"/>
+        </StackPanel>
+    </Grid>
+</Page>