Add SonarCloud workflow for code analysis

Author: neozhu

.github/workflows/sonar.yml

@@ -0,0 +1,47 @@
+name: SonarCloud
+
+on:
+  push:
+    branches:
+      - main
+
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  analyze:
+    name: SonarCloud
+    runs-on: ubuntu-latest
+
+    steps:
+
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: 10.0.x
+
+      - name: Install SonarScanner
+        run: |
+          dotnet tool install --global dotnet-sonarscanner
+
+      - name: Begin Sonar Analysis
+        run: |
+          dotnet sonarscanner begin \
+          /k:"neozhu" \
+          /o:"neo.zhu" \
+          /d:sonar.login="${{ secrets.SONAR_TOKEN }}" \
+          /d:sonar.host.url="https://sonarcloud.io"
+
+      - name: Restore
+        run: dotnet restore CleanArchitecture.Blazor.slnx
+      - name: Build
+        run: dotnet build CleanArchitecture.Blazor.slnx --configuration Debug --no-restore
+
+      - name: End Sonar Analysis
+        run: |
+          dotnet sonarscanner end \
+          /d:sonar.login="${{ secrets.SONAR_TOKEN }}"