Update asset database

Ghost.Editor.Core/AssetHandle/Models/Asset.cs

@@ -0,0 +1,22 @@
+namespace Ghost.Editor.Core.AssetHandle;
+
+/// <summary>
+/// The base class for all asset types in the Ghost Editor.
+/// </summary>
+public abstract class Asset
+{
+    public abstract string Name
+    {
+        get; set;
+    }
+
+    public Guid ID
+    {
+        get;
+    }
+
+    protected Asset(Guid id)
+    {
+        ID = id;
+    }
+}

Ghost.Editor.Core/AssetHandle/Models/TextureAsset.cs

@@ -0,0 +1,75 @@
+namespace Ghost.Editor.Core.AssetHandle;
+
+/// <summary>
+/// Represents a texture asset.
+/// </summary>
+public class TextureAsset : Asset
+{
+    public override string Name
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Width of the texture in pixels.
+    /// </summary>
+    public uint Width
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Height of the texture in pixels.
+    /// </summary>
+    public uint Height
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Number of mipmap levels.
+    /// </summary>
+    public uint MipLevels
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Texture format (e.g., "RGBA8", "BC1", "BC7").
+    /// </summary>
+    public string Format
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Whether the texture uses sRGB color space.
+    /// </summary>
+    public bool IsSRGB
+    {
+        get;
+        set;
+    }
+
+    /// <summary>
+    /// Relative path to the source image file.
+    /// </summary>
+    public string SourcePath
+    {
+        get;
+        set;
+    }
+
+    public TextureAsset(Guid id, string name) : base(id)
+    {
+        Name = name;
+        Format = "RGBA8";
+        IsSRGB = true;
+        SourcePath = string.Empty;
+    }
+}