Add Windows build workflow with caching

.github/workflows/Windows-Builds-Optimized

@@ -0,0 +1,82 @@
+name: Building on Windows with Caching
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: windows-2022
+
+    strategy:
+      fail-fast: false
+      matrix:
+        build_type: [Release, Debug]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      # Setup sccache (works with MSVC)
+      - name: Setup sccache
+        uses: mozilla-actions/sccache-action@v0.0.9
+
+      # Cache Vulkan SDK
+      - name: Cache Vulkan SDK
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ github.workspace }}/VULKAN_SDK
+            ~/.vulkan
+          key: vulkan-${{ runner.os }}-1.4.304.1
+          restore-keys: |
+            vulkan-${{ runner.os }}-
+
+      - name: Prepare Vulkan SDK
+        uses: humbletim/setup-vulkan-sdk@v1.2.1
+        with:
+          vulkan-query-version: 1.4.304.1
+          vulkan-components: Vulkan-Headers, Vulkan-Loader, SPIRV-Headers, SPIRV-Tools, SPIRV-Cross, Glslang
+          vulkan-use-cache: true
+
+      - name: Install Ninja
+        run: choco install ninja -y
+
+      - name: Setup MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Setup CMake
+        uses: jwlawson/actions-setup-cmake@v2
+        with:
+          cmake-version: '4.1.x'
+
+      # Cache CMake FetchContent / CPM deps
+      - name: Cache CMake dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ github.workspace }}/build/_deps
+          key: cmake-deps-${{ runner.os }}-${{ hashFiles('**/CMakeLists.txt') }}
+          restore-keys: |
+            cmake-deps-${{ runner.os }}-
+
+      - name: Configure CMake (Ninja + MSVC)
+        run: >
+          cmake -S .
+          -B build
+          -G Ninja
+          -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+
+      - name: Build
+        run: cmake --build build --parallel
+
+      - name: Test
+        working-directory: build
+        run: ctest --output-on-failure