Add GitHub Pages deployment workflow

Author: Valk

.github/workflows/pages.yml

@@ -0,0 +1,52 @@
+name: Deploy Doxygen Pages
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install documentation dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            doxygen \
+            graphviz
+
+      - name: Build Doxygen site
+        run: |
+          doxygen Doxyfile
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: build/docs-doxygen/html
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4