feat(shader): refactor and enhance shader pipeline

Refactored the shader compilation pipeline to introduce modularity, improve performance, and enhance maintainability. Key changes include:

- Added `ShaderCompilationConfig`, `CompilerOptimizeLevel`, and `ShaderStage` enums.
- Replaced `SM` property with `ShaderModel` in shader models.
- Introduced `ShaderLibrary` for in-memory and disk-based shader caching.
- Refactored `DSLShaderCompiler` and `AntlrShaderCompiler` for better hashing and error handling.
- Centralized shader compilation logic in `ShaderCompilerUtility`.
- Removed legacy shader compilation logic from `IShaderCompiler`.
- Updated `RenderGraph`, `ResourceManager`, and `Material` to integrate with the new caching system.
- Improved memory management with `NativeMemoryManager<T>`.

BREAKING CHANGE: Removed legacy shader compilation methods and replaced them with a new caching and compilation system.

src/Runtime/Ghost.Graphics/IShaderCompilationBridge.cs

@@ -0,0 +1,19 @@
+namespace Ghost.Graphics;
+
+public interface IShaderCompilationBridge
+{
+    bool TryGetBytecode(ulong manifestKey, out ReadOnlyMemory<byte> bytecode);
+    bool IsCompiling(ulong manifestKey);
+}
+
+// NOTE: For testing only.
+internal sealed class NullShaderCompilationBridge : IShaderCompilationBridge
+{
+    public bool TryGetBytecode(ulong manifestKey, out ReadOnlyMemory<byte> bytecode)
+    {
+        bytecode = default;
+        return false; // Always fall through to ShaderLibrary's disk cache
+    }
+
+    public bool IsCompiling(ulong manifestKey) => false;
+}