ci: add Python linting and formatting workflow

Author: ankitgadling

.github/workflows/python-lint-format.yml

@@ -0,0 +1,42 @@
+# .github/workflows/python-lint-format.yml
+name: Python CI - Lint & Format
+
+on:
+  push:
+    branches:
+      - main
+      - "feature/**"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint-format:
+    name: Lint, Format, Type Check, Security
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install black flake8 mypy bandit
+
+      - name: Check formatting with Black
+        run: black --check .
+
+      - name: Run Flake8 linter
+        run: flake8 .
+
+      - name: Run Mypy type checking
+        run: mypy .
+
+      - name: Run Bandit security scan
+        run: bandit -r .