Refactor project structure and enhance functionality

Changed the project namespace from `Ghost.Editor` to `Ghost.App` across multiple files.
Changed the `InternalsVisibleTo` attribute in `AssemblyInfo.cs` to include `Ghost.App`.
Changed the `ProjectRepository` class to add new asynchronous methods for retrieving projects by ID, name, and metadata path.
Changed the `ProjectService` class to utilize the new asynchronous project loading methods.
Changed the `SceneGraph` classes to improve node management and serialization.
Changed the `EntityManager` class to enhance entity management with new component handling methods.
Added new test classes, `EntityTest` and `SerializationTest`, to ensure reliability in entity and serialization systems.
Added the `Ghost.App` project file to establish a modular project structure.
Added the `Ghost.Generator` project for automated component serialization code generation.
Updated UI components to reflect the new namespace for proper functionality.

Ghost.InternalEditor/View/Pages/EngineEditor/ConsolePage.xaml

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="Ghost.App.View.Pages.EngineEditor.ConsolePage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="using:Ghost.App.View.Pages.EngineEditor"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d">
+
+    <Grid Background="{ThemeResource LayerFillColorDefaultBrush}">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <!--  Toolbar  -->
+        <Grid
+            Grid.Row="0"
+            BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+            BorderThickness="0,0,0,1">
+            <CommandBar Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}" DefaultLabelPosition="Collapsed">
+                <CommandBar.PrimaryCommands>
+                    <AppBarButton Command="{x:Bind ViewModel.ClearLogsCommand}" Content="Clear" />
+                    <AppBarSeparator />
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowInfo, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xF167;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowWarning, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xE814;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowError, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xEB90;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                </CommandBar.PrimaryCommands>
+
+                <CommandBar.SecondaryCommands>
+                    <AppBarToggleButton BorderThickness="0" Label="Clear On Play" />
+                    <AppBarToggleButton
+                        BorderThickness="0"
+                        IsChecked="{x:Bind ViewModel.ShowStackTrace, Mode=TwoWay}"
+                        Label="Show Stack Trace" />
+                </CommandBar.SecondaryCommands>
+            </CommandBar>
+        </Grid>
+
+        <!--  Log Content  -->
+        <Grid Grid.Row="1">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="*" />
+                <RowDefinition Height="100" />
+            </Grid.RowDefinitions>
+
+            <ListView
+                x:Name="LogListView"
+                Grid.Row="0"
+                ItemsSource="{x:Bind ViewModel.Logs, Mode=OneWay}"
+                SelectedItem="{x:Bind ViewModel.SelectedLog, Mode=TwoWay}" />
+            <Grid
+                Grid.Row="1"
+                Padding="4"
+                BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+                BorderThickness="0,1,0,0">
+                <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
+                    <TextBlock
+                        IsTextSelectionEnabled="True"
+                        Style="{StaticResource CaptionTextBlockStyle}"
+                        Text="{x:Bind ViewModel.SelectedLog.ToStringWithStackTrace(), Mode=OneWay}"
+                        TextWrapping="Wrap" />
+                </ScrollViewer>
+            </Grid>
+        </Grid>
+    </Grid>
+</Page>

Ghost.InternalEditor/View/Pages/EngineEditor/ConsolePage.xaml.cs

@@ -0,0 +1,19 @@
+using Ghost.Editor.ViewModels.Pages.EngineEditor;
+using Microsoft.UI.Xaml.Controls;
+
+namespace Ghost.App.View.Pages.EngineEditor;
+
+internal sealed partial class ConsolePage : Page
+{
+    public ConsoleViewModel ViewModel
+    {
+        get;
+    }
+
+    public ConsolePage()
+    {
+        ViewModel = GhostApplication.GetService<ConsoleViewModel>();
+
+        InitializeComponent();
+    }
+}

Ghost.InternalEditor/View/Pages/EngineEditor/HierarchyPage.xaml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="Ghost.App.View.Pages.EngineEditor.HierarchyPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="using:Ghost.App.View.Pages.EngineEditor"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:sg="using:Ghost.Editor.SceneGraph"
+    mc:Ignorable="d">
+
+    <Page.Resources>
+        <DataTemplate x:Key="SceneTemplate" x:DataType="sg:SceneGraphNode">
+            <TreeViewItem
+                AutomationProperties.Name="{x:Bind Name}"
+                Background="{ThemeResource ControlSolidFillColorDefaultBrush}"
+                IsExpanded="True"
+                ItemsSource="{x:Bind Children}">
+                <StackPanel Orientation="Horizontal">
+                    <FontIcon FontSize="14" Glyph="&#xF159;" />
+                    <TextBlock Margin="10,0" Text="{x:Bind Name}" />
+                </StackPanel>
+            </TreeViewItem>
+        </DataTemplate>
+
+        <DataTemplate x:Key="EntityTemplate" x:DataType="sg:SceneGraphNode">
+            <TreeViewItem AutomationProperties.Name="{x:Bind Name}" ItemsSource="{x:Bind Children}">
+                <StackPanel Orientation="Horizontal">
+                    <FontIcon FontSize="14" Glyph="&#xF158;" />
+                    <TextBlock Margin="10,0" Text="{x:Bind Name}" />
+                </StackPanel>
+            </TreeViewItem>
+        </DataTemplate>
+    </Page.Resources>
+
+    <Grid Padding="4,6" Background="{ThemeResource LayerFillColorDefaultBrush}">
+        <TreeView ItemsSource="{x:Bind ViewModel.SceneList}">
+            <TreeView.ItemTemplateSelector>
+                <local:HierarchyTemplateSector EntityTemplate="{StaticResource EntityTemplate}" WorldTemplate="{StaticResource SceneTemplate}" />
+            </TreeView.ItemTemplateSelector>
+        </TreeView>
+    </Grid>
+</Page>

Ghost.InternalEditor/View/Pages/EngineEditor/HierarchyPage.xaml.cs

@@ -0,0 +1,57 @@
+using Ghost.Editor.SceneGraph;
+using Ghost.Editor.ViewModels.Pages.EngineEditor;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+// To learn more about WinUI, the WinUI project structure,
+// and more about our project templates, see: http://aka.ms/winui-project-info.
+
+namespace Ghost.App.View.Pages.EngineEditor;
+/// <summary>
+/// An empty page that can be used on its own or navigated to within a Frame.
+/// </summary>
+internal sealed partial class HierarchyPage : Page
+{
+    public HierarchyViewModel ViewModel
+    {
+        get;
+    }
+
+    public HierarchyPage()
+    {
+        ViewModel = GhostApplication.GetService<HierarchyViewModel>();
+
+        InitializeComponent();
+    }
+}
+
+internal partial class HierarchyTemplateSector : DataTemplateSelector
+{
+    public DataTemplate? WorldTemplate
+    {
+        get;
+        set;
+    }
+
+    public DataTemplate? EntityTemplate
+    {
+        get;
+        set;
+    }
+
+    protected override DataTemplate SelectTemplateCore(object item)
+    {
+        if (WorldTemplate == null || EntityTemplate == null)
+        {
+            return base.SelectTemplateCore(item);
+        }
+
+        var node = (SceneGraphNode)item;
+        return node.NodeType switch
+        {
+            SceneGraphNodeType.Scene => WorldTemplate,
+            SceneGraphNodeType.Entity => EntityTemplate,
+            _ => base.SelectTemplateCore(item)
+        };
+    }
+}

Ghost.InternalEditor/View/Pages/EngineEditor/ProjectPage.xaml

@@ -0,0 +1,140 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="Ghost.App.View.Pages.EngineEditor.ProjectPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:converter="using:Ghost.Editor.Utilities.Converters"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="using:Ghost.App.View.Pages.EngineEditor"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:model="using:Ghost.App.Models"
+    mc:Ignorable="d">
+
+    <Page.Resources>
+        <converter:AssetPathToGlyphConverter x:Key="AssetPathToGlyphConverter" />
+    </Page.Resources>
+
+    <Grid Background="{ThemeResource LayerFillColorDefaultBrush}">
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="250" />
+            <ColumnDefinition Width="*" />
+        </Grid.ColumnDefinitions>
+
+        <!--  Folder Tree View  -->
+        <Grid
+            Grid.Column="0"
+            Padding="4"
+            Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}"
+            BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+            BorderThickness="0,0,1,0">
+            <TreeView
+                x:Name="DirectoryTreeView"
+                HorizontalAlignment="Stretch"
+                VerticalAlignment="Stretch"
+                ItemsSource="{x:Bind ViewModel.SubDirectories}"
+                ScrollViewer.HorizontalScrollBarVisibility="Hidden"
+                ScrollViewer.VerticalScrollBarVisibility="Auto"
+                SelectedItem="{x:Bind ViewModel.SelectedDirectory, Mode=TwoWay}">
+                <TreeView.ItemTemplate>
+                    <DataTemplate x:DataType="model:ExplorerItem">
+                        <TreeViewItem ItemsSource="{x:Bind Children}">
+                            <StackPanel Orientation="Horizontal">
+                                <FontIcon
+                                    VerticalAlignment="Center"
+                                    FontSize="14"
+                                    Glyph="&#xE8B7;" />
+                                <TextBlock
+                                    Margin="8,0,0,0"
+                                    VerticalAlignment="Center"
+                                    Style="{StaticResource CaptionTextBlockStyle}"
+                                    Text="{x:Bind Name}"
+                                    TextTrimming="CharacterEllipsis" />
+                            </StackPanel>
+                        </TreeViewItem>
+                    </DataTemplate>
+                </TreeView.ItemTemplate>
+            </TreeView>
+        </Grid>
+
+        <!--  Files  -->
+        <Grid Grid.Column="1">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+
+            <Grid
+                Grid.Row="0"
+                Padding="4"
+                HorizontalAlignment="Stretch"
+                VerticalAlignment="Stretch"
+                Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}"
+                BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+                BorderThickness="0,0,0,1">
+                <BreadcrumbBar Height="15" />
+            </Grid>
+
+            <ScrollViewer
+                Grid.Row="1"
+                Padding="8"
+                VerticalAlignment="Stretch"
+                HorizontalScrollBarVisibility="Auto"
+                VerticalScrollBarVisibility="Auto">
+                <GridView
+                    x:Name="AssetsGridView"
+                    HorizontalAlignment="Stretch"
+                    VerticalAlignment="Stretch"
+                    ItemsSource="{x:Bind ViewModel.DirectoryAssets, Mode=OneWay}"
+                    SelectedItem="{x:Bind ViewModel.SelectedAsset, Mode=TwoWay}">
+                    <GridView.ItemContainerStyle>
+                        <Style BasedOn="{StaticResource DefaultGridViewItemStyle}" TargetType="GridViewItem">
+                            <Setter Property="Margin" Value="2" />
+                        </Style>
+                    </GridView.ItemContainerStyle>
+
+                    <GridView.ItemTemplate>
+                        <DataTemplate x:DataType="model:ExplorerItem">
+                            <Grid
+                                Width="100"
+                                Height="100"
+                                Padding="8"
+                                DoubleTapped="GridViewItem_DoubleTapped"
+                                IsDoubleTapEnabled="True">
+                                <Grid.RowDefinitions>
+                                    <RowDefinition Height="*" />
+                                    <RowDefinition Height="0.25*" />
+                                </Grid.RowDefinitions>
+                                <FontIcon FontSize="42" Glyph="{x:Bind Path, Converter={StaticResource AssetPathToGlyphConverter}}" />
+                                <TextBlock
+                                    Grid.Row="1"
+                                    Margin="8,0"
+                                    HorizontalAlignment="Center"
+                                    VerticalAlignment="Center"
+                                    Style="{StaticResource CaptionTextBlockStyle}"
+                                    Text="{x:Bind Name}"
+                                    TextTrimming="CharacterEllipsis" />
+                            </Grid>
+                        </DataTemplate>
+                    </GridView.ItemTemplate>
+                </GridView>
+            </ScrollViewer>
+
+            <Grid
+                Grid.Row="2"
+                Padding="4"
+                HorizontalAlignment="Stretch"
+                VerticalAlignment="Stretch"
+                Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}"
+                BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+                BorderThickness="0,1,0,0">
+                <TextBlock
+                    VerticalAlignment="Center"
+                    HorizontalTextAlignment="Left"
+                    Style="{StaticResource CaptionTextBlockStyle}"
+                    Text="{x:Bind ViewModel.SelectedAsset.Path, Mode=OneWay}"
+                    TextTrimming="CharacterEllipsis" />
+            </Grid>
+        </Grid>
+    </Grid>
+</Page>

Ghost.InternalEditor/View/Pages/EngineEditor/ProjectPage.xaml.cs

@@ -0,0 +1,25 @@
+using Ghost.Editor.ViewModels.Pages.EngineEditor;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Input;
+
+namespace Ghost.App.View.Pages.EngineEditor;
+
+internal sealed partial class ProjectPage : Page
+{
+    public ProjectViewModel ViewModel
+    {
+        get;
+    }
+
+    public ProjectPage()
+    {
+        ViewModel = GhostApplication.GetService<ProjectViewModel>();
+
+        InitializeComponent();
+    }
+
+    private void GridViewItem_DoubleTapped(object sender, DoubleTappedRoutedEventArgs e)
+    {
+        ViewModel.NavigateToSelected();
+    }
+}