Add GitHub Actions CI workflow for automated testing and linting

Author: argahsuknesib

.github/workflows/ci.yml

@@ -0,0 +1,54 @@
+name: Python CI
+
+on:
+  push:
+    branches: [ "master", "feature/**" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+        
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install .
+        # Install dev dependencies for linting if needed
+        # pip install .[dev]
+        
+    - name: Run tests
+      run: |
+        python -m unittest discover mapper/tests
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.10"
+        
+    - name: Install linting tools
+      run: |
+        python -m pip install --upgrade pip
+        pip install ruff
+        
+    - name: Lint with ruff
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        ruff check .