feat(render): refactor pipeline & shader system for DX12 WG

Major refactor of render pipeline and shader system:
- Replaced legacy shader properties with source generator and attribute-based HLSL struct generation.
- Introduced ShaderPropertiesRegistry for runtime property layout/code registration.
- Added modular IRenderPipeline, IRenderPipelineSettings, and IRenderPayload interfaces.
- Implemented GhostRenderPipeline and ECS-driven GPUScene management.
- Added experimental DirectX 12 Work Graph support.
- Refactored shader compilation, variant hashing, and caching.
- Updated APIs for consistency and improved codegen for registration.

These changes modernize the rendering infrastructure for advanced features like work graphs and dynamic pipelines.

BREAKING CHANGE: Shader DSL, pipeline, and property APIs have changed. Existing shaders and pipeline integrations must be updated.

src/Editor/Ghost.DSL/Grammar/GhostShaderParser.g4

@@ -13,23 +13,11 @@ shader:
     RBRACE;
 
 shaderBody:
-    (propertiesBlock | pipelineBlock | passBlock | functionCall)*;
-
-// Properties block
-propertiesBlock:
-    PROPERTIES LBRACE
-        propertyDeclaration*
-    RBRACE;
-
-propertyDeclaration:
-    scope? IDENTIFIER IDENTIFIER (EQUALS LBRACE propertyInitializer RBRACE)? SEMICOLON;
+    (pipelineBlock | passBlock | functionCall)*;
 
 scope:
     GLOBAL | LOCAL;
 
-propertyInitializer:
-    (NUMBER | IDENTIFIER) (COMMA (NUMBER | IDENTIFIER))*;
-
 // Pipeline block
 pipelineBlock:
     PIPELINE LBRACE