fix: hunter doesn't work with MSVC 2026

.github/workflows/build-windows.yml

@@ -20,87 +20,87 @@
 
 jobs:
   build-windows:
-    # Pin to windows-2025 (VS 2022) until VS 2026 is validated.
-    runs-on: windows-2025
+     # Pin to the VS 2022 image until newer MSVC toolchains are validated.
+    runs-on: windows-2022
 
     env:
       SCCACHE_GHA_ENABLED: "true"
 
     strategy:
       matrix:
         build_type: [Debug, Release]
 
     steps:
     - name: Checkout code
       uses: actions/checkout@v6
       with:
         submodules: recursive
 
     - name: Install uv
       uses: ./.github/actions/setup-uv
 
     - name: Setup sccache
       uses: Mozilla-Actions/sccache-action@9e7fa8a12102821edf02ca5dbea1acd0f89a2696  # v0.0.10
 
     # Hunter cache - caches depthai dependencies
     # Note: Hunter uses C:/.hunter on Windows (at drive root)
     - name: Cache Hunter packages
       uses: actions/cache@v5
       with:
         path: C:/.hunter
         key: hunter-${{ runner.os }}-${{ hashFiles('cmake/SetupHunter.cmake') }}
         restore-keys: |
           hunter-${{ runner.os }}-
 
     - name: Verify sccache
       run: |
         sccache --version
 
-    # Put cl.exe and other build tools in PATH
+    # Put cl.exe and other build tools in PATH.
     - name: Setup MSVC (Developer Command Prompt)
       uses: ilammy/msvc-dev-cmd@v1
 
     # Install LunarG Vulkan SDK (headers + loader lib). Sets VULKAN_SDK
     # env var so CMake's FindVulkan locates the install. The Vulkan
     # runtime/driver is not present on this CI runner, but Televiz [gpu]
     # tests skip cleanly via is_gpu_available() when no device is enumerated.
     - name: Install Vulkan SDK
       uses: humbletim/install-vulkan-sdk@v1.2
       with:
         version: 1.3.290.0
         cache: true
 
     # CUDA Toolkit needed at link time for viz_core (device_image links
     # cudart). Jimver action works correctly on Windows (the arm64
     # /x86_64/ hardcoding bug is Linux-only); runs NVIDIA's silent
     # network installer and sets CUDA_PATH so find_package(CUDAToolkit)
     # locates the install.
     - name: Install CUDA Toolkit
       uses: Jimver/cuda-toolkit@v0.2.35
       with:
         cuda: '12.4.0'
         method: 'network'
         sub-packages: '["nvcc", "cudart"]'
 
     - name: Configure CMake
       # Note:
       # sccache does not work with VSBuild, so we use Ninja generator here.
       # -G Ninja would pickup mingw64 by default on Windows, so we explicitly set the compiler to cl.exe
       # Force embedded debug info (Z7) to avoid PDB contention whenever debug info is generated.
       run: >
         cmake -B build -G Ninja
         -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
         -DENABLE_EXPERIMENTAL_WINDOWS_BUILD=ON
         -DCMAKE_C_COMPILER_LAUNCHER=sccache
         -DCMAKE_CXX_COMPILER_LAUNCHER=sccache
         -DCMAKE_C_COMPILER="cl.exe"
         -DCMAKE_CXX_COMPILER="cl.exe"
         -DCMAKE_MSVC_DEBUG_INFORMATION_FORMAT=Embedded
         -DBUILD_PLUGIN_OAK_CAMERA=ON
         -DBUILD_VIZ=ON
 
     - name: Build
       run: cmake --build build --parallel
 
     - name: Run All Tests
       run: ctest --test-dir build --output-on-failure --parallel