build-linux.yml workflow added

.github/workflows/build-linux.yml

@@ -0,0 +1,34 @@
+name: Build Linux
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Publish
+        run: |
+          dotnet publish src/Clario.Desktop/Clario.Desktop.csproj \
+            -r linux-x64 \
+            -c Release \
+            --self-contained true \
+            -p:PublishSingleFile=true \
+            -o ./publish/linux-x64
+
+      - name: Package as tar.gz
+        run: tar -czf Clario-linux-x64.tar.gz -C ./publish/linux-x64 .
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: clario-linux-x64
+          path: Clario-linux-x64.tar.gz