Rename GT_minimal.ppm to GT.ppm for D3D12 minimal integration test

- Rename golden image file to match simpler convention
- Update CMakeLists.txt reference
- Update TEST_SPEC.md documentation
- Update run_tests.py reference

scripts/run_tests.py

@@ -275,12 +275,7 @@ class TestRunner:
 
         minimal_exe = integration_dir / "D3D12_Minimal.exe"
         gt_minimal = (
-            self.source_dir
-            / "tests"
-            / "RHI"
-            / "D3D12"
-            / "integration"
-            / "GT_minimal.ppm"
+            self.source_dir / "tests" / "RHI" / "D3D12" / "integration" / "GT.ppm"
         )
 
         if minimal_exe.exists() and gt_minimal.exists():

tests/RHI/D3D12/TEST_SPEC.md

@@ -98,7 +98,7 @@ integration/
 ├── run.bat                         # Windows 启动脚本
 ├── minimal/                         # 最小化测试
 │   ├── main.cpp
-│   ├── GT_minimal.ppm
+│   ├── GT.ppm
 │   └── Res/
 │       └── Shader/
 │           ├── ndctriangle.hlsl
@@ -134,7 +134,7 @@ add_test(NAME D3D12_Minimal_Integration
     COMMAND ${Python3_EXECUTABLE} $<TARGET_FILE_DIR:D3D12_Minimal>/run_integration_test.py
         $<TARGET_FILE:D3D12_Minimal>
         minimal.ppm
-        ${CMAKE_CURRENT_SOURCE_DIR}/minimal/GT_minimal.ppm
+        ${CMAKE_CURRENT_SOURCE_DIR}/minimal/GT.ppm
         5
     WORKING_DIRECTORY $<TARGET_FILE_DIR:D3D12_Minimal>
 )
@@ -160,7 +160,7 @@ add_test(NAME D3D12_Minimal_Integration
 
 | 测试名 | Golden Image | 状态 |
 |--------|-------------|------|
-| D3D12_Minimal_Integration | `minimal/GT_minimal.ppm` | ✅ 通过 |
+| D3D12_Minimal_Integration | `minimal/GT.ppm` | ✅ 通过 |
 | D3D12_RenderModel_Integration | `render_model/GT.ppm` | ❌ 待修复 |
 | D3D12_Triangle_Integration | `triangle/GT_triangle.ppm` | 🔄 待实现 |
 
@@ -260,7 +260,7 @@ tests/RHI/D3D12/
     ├── run.bat                      # 公共脚本
     ├── minimal/                     # 测试子文件夹
     │   ├── main.cpp
-    │   ├── GT_minimal.ppm
+    │   ├── GT.ppm
     │   └── Res/
     ├── render_model/                # 测试子文件夹
     │   ├── main.cpp                 # 有 API 问题，待修复

tests/RHI/D3D12/integration/CMakeLists.txt

@@ -102,7 +102,7 @@ add_test(NAME D3D12_Minimal_Integration
     COMMAND ${Python3_EXECUTABLE} $<TARGET_FILE_DIR:D3D12_Minimal>/run_integration_test.py
         $<TARGET_FILE:D3D12_Minimal>
         minimal.ppm
-        ${CMAKE_CURRENT_SOURCE_DIR}/minimal/GT_minimal.ppm
+        ${CMAKE_CURRENT_SOURCE_DIR}/minimal/GT.ppm
         5
     WORKING_DIRECTORY $<TARGET_FILE_DIR:D3D12_Minimal>
 )