Add sampler support and refactor resource handling

Enhanced shader and resource systems with `Sampler` support, including updates to `ShaderPropertyType`, HLSL code, and resource management. Refactored `Result` structs for better type safety and added new enums for texture and comparison settings. Improved `MeshRenderPass` to dynamically load textures and samplers. Updated SDL compiler and token lexicon for `Sampler` handling. Embedded debug info in project files and streamlined resource state tracking.

Ghost.Core/Graphics/ShaderDescriptor.cs

@@ -16,6 +16,7 @@ public enum ShaderPropertyType
     Bool, Bool2, Bool3, Bool4,
     Texture2D, Texture3D, TextureCube,
     Texture2DArray, TextureCubeArray,
+    Sampler
 }
 
 public struct ShaderEntryPoint
@@ -133,6 +134,7 @@ public static class ShaderDescriptorExtensions
             ShaderPropertyType.TextureCube => 4,
             ShaderPropertyType.Texture2DArray => 4,
             ShaderPropertyType.TextureCubeArray => 4,
+            ShaderPropertyType.Sampler => 4,
             _ => 0,
         };
     }

Ghost.Core/Result.cs

@@ -1,5 +1,3 @@
-using System.Runtime.CompilerServices;
-
 namespace Ghost.Core;
 
 public readonly struct Result
@@ -39,11 +37,13 @@ public readonly struct Result
     }
 
     public static Result<T, S> Create<T, S>(T value, S status)
+        where S : Enum
     {
         return new Result<T, S>(value, status);
     }
 
     public static RefResult<T, S> CreateRef<T, S>(ref T value, S status)
+        where S : Enum
     {
         return new RefResult<T, S>(ref value, status);
     }
@@ -105,6 +105,7 @@ public enum ResultStatus : byte
 }
 
 public readonly struct Result<T, S>
+    where S : Enum
 {
     private readonly T _value;
     private readonly S _status;
@@ -127,6 +128,7 @@ public readonly struct Result<T, S>
 }
 
 public readonly ref struct RefResult<T, S>
+    where S : Enum
 {
     private readonly ref T _value;
     private readonly S _status;
@@ -173,6 +175,23 @@ public static class ResultExtensions
         return result.IsSuccess ? result.Value : defaultValue;
     }
 
+    public static T GetValueOrThrow<T, S>(this Result<T, S> result, S expect)
+        where S : Enum
+    {
+        if (result.Status?.Equals(expect) ?? false)
+        {
+            throw new InvalidOperationException($"Operation failed: expected status {expect}, but got {result.Status}");
+        }
+
+        return result.Value;
+    }
+
+    public static T? GetValueOrDefault<T, S>(this Result<T, S> result, S expect, T? defaultValue = default)
+        where S : Enum
+    {
+        return (result.Status?.Equals(expect) ?? false) ? defaultValue : result.Value;
+    }
+
     public static Result OnSuccess(this Result result, Action action)
     {
         if (result.IsSuccess)