add docs workflow

.github/workflows/docs.yml

@@ -0,0 +1,51 @@
+name: Publish docs via GitHub Pages
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - v*
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.14
+
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
+
+      - uses: actions/cache@v4
+        with:
+          key: mkdocs-material-${{ env.cache_id }}
+          path: .cache
+          restore-keys: |
+            mkdocs-material-
+
+      - name: Install dependencies
+        run: pip install mkdocs-material mike
+
+      - name: Deploy (master)
+        if: github.ref == 'refs/heads/master'
+        run: |
+          mike deploy --push --update-aliases master
+
+      - name: Deploy (tag)
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          version=${GITHUB_REF#refs/tags/}
+          mike deploy --push --update-aliases $version latest --title "$version"
+