Add CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Restore dependencies
+        run: dotnet restore src/OctoshiftCLI.sln
+
+      - name: Build
+        run: dotnet build src/OctoshiftCLI.sln --no-restore --configuration Release
+
+      - name: Run Unit Tests
+        run: dotnet test src/OctoshiftCLI.Tests/OctoshiftCLI.Tests.csproj --no-build --logger "trx;LogFileName=test-results.trx"
+
+      - name: Upload Test Results
+        uses: actions/upload-artifact@v6
+        with:
+          name: test-results
+          path: src/OctoshiftCLI.Tests/TestResults