dev: add dev tools, pre-commit, Makefile, contributing, changelog, CI, and fix python version

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- Initial project structure
+- DockerComposeManager class for programmatic Docker Compose file management
+- Support for services, volumes, networks, configs, and secrets
+- Basic example demonstrating usage
+- Comprehensive test suite
+- Development tools configuration (Ruff, MyPy, Pre-commit)
+- Makefile for common development commands
+- Contributing guidelines
+
+### Changed
+- Lowered Python version requirement from 3.13+ to 3.9+ for broader compatibility
+
+### Fixed
+- None yet
+
+## [0.1.0] - 2024-01-XX
+
+### Added
+- Initial release
+- Core DockerComposeManager functionality
+- Support for basic Docker Compose features:
+  - Services with full configuration options
+  - Volumes
+  - Networks
+  - Configs
+  - Secrets
+- Context manager support for auto-saving
+- Pydantic models for type safety
+- YAML file generation and parsing
+
+[Unreleased]: https://github.com/yourusername/compose/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/yourusername/compose/releases/tag/v0.1.0