Add GitHub Actions workflow for Python bindings testing

- Add python-bindings-test job with Python 3.7-3.12 support
- Test on ubuntu-latest, macos-latest, and windows-latest
- Run Python tests, examples, and import checks
- Upload build logs on failure for debugging

Co-authored-by: wannaphong <8536487+wannaphong@users.noreply.github.com>

Author: Copilot

.github/workflows/test.yml

@@ -56,3 +56,52 @@ jobs:
           build/
           lib/
         retention-days: 5
+
+  python-bindings-test:
+    name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    
+    - name: Display Python version
+      run: |
+        python --version
+        pip --version
+    
+    - name: Install package
+      run: |
+        pip install -e .
+    
+    - name: Run Python tests
+      run: |
+        python tests/python/test_tokenize.py
+    
+    - name: Run Python example
+      run: |
+        python examples/python/example_basic.py
+    
+    - name: Test import and basic functionality
+      run: |
+        python -c "from cthainlp import word_tokenize; print('Import successful'); tokens = word_tokenize('ฉันไปโรงเรียน'); print('Tokens:', tokens); assert len(tokens) > 0, 'Tokenization failed'"
+    
+    - name: Upload build logs
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: python-build-logs-${{ matrix.os }}-py${{ matrix.python-version }}
+        path: |
+          build/
+          *.log
+        retention-days: 5