add workflow to test docs building

.github/workflows/build_docs.yml

@@ -0,0 +1,29 @@
+name: Build docs
+on:
+  workflow_dispatch: # Allow manual triggers
+  schedule:
+    - cron: 0 0 * * *
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Python 3
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.11
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install sphinx sphinx-autodoc-typehints torch==2.5.* torchvision tensorflow==2.15.*
+      - name: Build docs
+        run: cd docs && make github