feat: mypy for all type check (#10921)

.github/workflows/api-tests.yml

@@ -56,6 +56,12 @@ jobs:
       - name: Run Tool
         run: poetry run -C api bash dev/pytest/pytest_tools.sh
 
+      - name: Run mypy
+        run: |
+          pushd api
+          poetry run python -m mypy --install-types --non-interactive .
+          popd
+
       - name: Set up dotenvs
         run: |
           cp docker/.env.example docker/.env