GitHub Actions: build (#623)

* GitHub Actions: build

* wip

Author: DedSec256

.github/workflows/build.yml

@@ -0,0 +1,28 @@
+name: Build (.NET 8)
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: windows-latest
+    env:
+      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+      DOTNET_CLI_TELEMETRY_OPTOUT: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET 8
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+          cache: true
+          cache-dependency-path: |
+            **/*.csproj
+            **/*.sln
+
+      - name: Build
+        run: dotnet build HwProj.sln -c Release