feat: 适配 UE5.8 升级与仓库配置整理

- 升级 Target.cs 构建设置到 V7 / EngineIncludeOrderVersion.Unreal5_8
- DynamicIronBlock 温度计算从手动 RHI dispatch 迁移到 RDG (FRDGBuilder + FComputeShaderUtils::Dispatch + FRDGPooledBuffer 包装外部缓冲)
- 移除两个 shader 头中废弃的 SHADER_USE_PARAMETER_STRUCT 宏 (UE5.8 已不需要)
- BladeSmith.uproject: 关联 UE5.8 + 启用 ModelContextProtocol/AllToolsets/MCPClientToolset 插件
- DefaultEngine.ini: r.Substrate=False
- 移除废弃的 DeformAsyncTask.cpp
- 新增项目级 opencode.json (MCP unreal-mcp 配置) 与 .vscode 手写配置 (c_cpp_properties/mcp)
- 整理 .gitignore: 永久排除 AI 工具配置/缓存 (.claude/.codex/.cursor/.gemini/.codegraph/.planning 等)、graphify 缓存、IDE 生成物
- 移出跟踪: .claude/ (含 session-namer 技能)、.vsconfig

Source/BladeSmithEditor.Target.cs

@@ -8,8 +8,9 @@ public class BladeSmithEditorTarget : TargetRules
 	public BladeSmithEditorTarget(TargetInfo Target) : base(Target)
 	{
 		Type = TargetType.Editor;
-		DefaultBuildSettings = BuildSettingsVersion.V5;
-		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_5;
+		DefaultBuildSettings = BuildSettingsVersion.V7;
+		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_8;
+		CppStandard = CppStandardVersion.Cpp20;
 		ExtraModuleNames.Add("BladeSmith");
 	}
 }