feat: add uv-based project with pytest and CI workflow

- Add pyproject.toml and uv.lock for Python project with uv
- Add src/__init__.py with add(), multiply(), greet() functions
- Add tests/test_example.py with unit tests
- Add commit-message skill for Conventional Commits
- Add Gitea Actions workflow to run pytest

.gitea/workflows/test.yaml

@@ -9,8 +9,16 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Run test
-        run: |
-          echo "Hello from Gitea Actions!"
-          echo "Testing runner..."
-          echo "Done!"
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+
+      - name: Install dependencies
+        run: uv sync --extra test
+
+      - name: Run tests
+        run: uv run pytest tests/ -v