build api ref in CI

Author: martinfouilleul

.github/workflows/build-doc-site.yml

@@ -15,6 +15,9 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x
+      - name: buid api doc
+        run: |
+          python gen_doc.py src/api.json doc/mkdocs
       - name: build site
         run: |
           pip install mkdocs