add

Author: lealre

.github/workflows/main.yaml

@@ -15,13 +15,24 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: "3.12"
+
       - name: Install Poetry
-        run: curl -sSL https://install.python-poetry.org | python3 -
+        run: curl -sSL https://install.python-poetry.org | python3 - --version 1.7.12
+
       - name: Add Poetry to PATH
         run: echo "$HOME/.local/bin" >> $GITHUB_PATH
+
       - name: Install dependencies
         run: poetry install
         working-directory: backend
+      
+      - name: Check typing
+        run:  poetry run mypy .
+        working-directory: backend
+      
+      - name: Run lint
+        run: task lint
+
       - name: Run tests
-        run: poetry run pytest
+        run: task test
         working-directory: backend