Adding PyPi publishing

[sn]

This pull request introduces several improvements and updates to the project, focusing on automating CI/CD workflows, updating configuration validation for the latest Pydantic standards, and modernizing documentation and references. The most significant changes are the addition of GitHub Actions workflows for CI, release, and PyPI publishing, as well as updates to configuration validation and project references.

CI/CD Automation

• Added .github/workflows/ci.yml to automate testing, linting, formatting, type checking, security checks, CLI functionality tests, and code coverage reporting across multiple Python versions. Also includes build and installation verification steps.
• Added .github/workflows/release.yml to automate release creation on version tag pushes, including changelog generation, building, testing, and uploading release assets.
• Added .github/workflows/publish.yml to automate package publishing to PyPI on GitHub release events, with full test/build steps and artifact management.

Configuration and Validation Updates

• Updated all uses of validator to field_validator in ohheycrypto/config/settings.py to comply with Pydantic v2, including correct use of @classmethod and updated validation logic for fields such as position_sizing, ma_long, and API keys. [1] [2] [3] [4]
• Changed serialization from .dict() to .model_dump() in config saving for compatibility with Pydantic v2.

Reference and Documentation Modernization

• Updated all URLs in code, documentation, and metadata to point to the new repository location https://github.com/sn/ohheycrypto instead of the previous ohheycrypto/bot. [1] [2] [3] [4]
• Streamlined installation and quick start instructions in README.md for clarity and ease of use, removing redundancy and updating commands. [1] [2]

Testing and Packaging

• Fixed test configuration imports and updated mock config fields in tests/conftest.py to match the latest configuration structure.
• Updated pyproject.toml to modernize package finding configuration for setuptools.