Add Python CI checks workflow

.github/workflows/python-checks.yaml

@@ -0,0 +1,91 @@
+name: Python Checks
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  python-checks:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+
+          if [ -f requirements.txt ]; then
+            pip install -r requirements.txt
+          fi
+
+          pip install pylint ruff black bandit pytype pandas
+
+      - name: Run Pylint
+        id: pylint
+        continue-on-error: true
+        run: |
+          python_files=$(find . -name "*.py" -not -path "./.venv/*")
+          python -m pylint $python_files
+
+      - name: Run Ruff
+        id: ruff
+        continue-on-error: true
+        run: |
+          python -m ruff check .
+
+      - name: Run Black
+        id: black
+        continue-on-error: true
+        run: |
+          python -m black --check --diff --color .
+
+      - name: Run Bandit
+        id: bandit
+        continue-on-error: true
+        run: |
+          python -m bandit -r . -x ./.venv
+
+      - name: Run Pytype
+        id: pytype
+        continue-on-error: true
+        run: |
+          python_files=$(find . -name "*.py" -not -path "./.venv/*")
+          python -m pytype $python_files
+
+      - name: Fail if any check failed
+        run: |
+          failed=0
+
+          if [ "${{ steps.pylint.outcome }}" != "success" ]; then
+            echo "Pylint failed"
+            failed=1
+          fi
+
+          if [ "${{ steps.ruff.outcome }}" != "success" ]; then
+            echo "Ruff failed"
+            failed=1
+          fi
+
+          if [ "${{ steps.black.outcome }}" != "success" ]; then
+            echo "Black failed"
+            failed=1
+          fi
+
+          if [ "${{ steps.bandit.outcome }}" != "success" ]; then
+            echo "Bandit failed"
+            failed=1
+          fi
+
+          if [ "${{ steps.pytype.outcome }}" != "success" ]; then
+            echo "Pytype failed"
+            failed=1
+          fi
+
+          exit $failed