feat: Add Ruff linting, pre-commit hooks, and build scripts

- Configure Ruff for linting and formatting with pre-commit hooks
- Add Makefile with convenient commands for development workflow
- Create build and upload scripts for Gitea package registry
- Update README with documentation for new features
- Fix code quality issues identified by Ruff
- Add development dependencies (ruff, pre-commit) to pyproject.toml
- Update Python version requirement to >=3.9
- Add template for Gitea PyPI configuration
- Bump version to 0.3.0
- All tests passing and code properly formatted

Makefile

@@ -0,0 +1,48 @@
+# Makefile for building and uploading paroles-net-scraper package
+
+.PHONY: build upload clean help lint format check test install-dev
+
+# Default target
+help:
+	@echo "Available targets:"
+	@echo "  build      - Build the package"
+	@echo "  upload     - Build and upload package to Gitea"
+	@echo "  clean      - Clean build artifacts"
+	@echo "  lint       - Lint Python code with Ruff"
+	@echo "  format     - Format Python code with Ruff"
+	@echo "  check      - Check Python code with Ruff"
+	@echo "  test       - Run tests"
+	@echo "  install-dev - Install development dependencies"
+	@echo "  help       - Show this help message"
+
+# Build the package
+build:
+	uv build
+
+# Upload package to Gitea
+upload:
+	./scripts/build_and_upload.sh
+
+# Clean build artifacts
+clean:
+	rm -rf dist/ *.egg-info/
+
+# Install development dependencies
+install-dev:
+	uv pip install -e .[test]
+
+# Run tests
+test:
+	uv run pytest tests/ -v
+
+# Lint Python code with Ruff
+lint:
+	ruff check . --fix
+
+# Format Python code with Ruff
+format:
+	ruff format .
+
+# Check Python code with Ruff
+check:
+	ruff check .