chore: add pre-commit configuration and CI

[nearlyforget]

Description:
This PR establishes a robust linting and formatting pipeline for the Python SDK. By integrating pre-commit, we
automate the enforcement of code quality standards and security best practices.

Tools & Hooks Added:

Ruff: Highly efficient Python linter and formatter. Configured to automatically fix safe issues and ensure
consistent code style across the SDK's extensive model and schema definitions.
Prettier: Handles formatting for non-Python assets, including Markdown documentation, YAML workflows, and JSON
files.
ShellCheck: Ensures the reliability and portability of generate_models.sh.
codespell: Periodically checks the codebase for common typos in docstrings and comments.
Hygiene Hooks: Standardizes file endings and removes trailing whitespace to keep the diffs clean.
CI/CD Integration:

GitHub Actions (linter.yml): Automatically validates every push and pull request against these standards to
prevent the introduction of unformatted code.

[wry-ry]

Do we want codespell here? We're using cspell on the main ucp repo.

[nearlyforget]

I switched to this for low maintenance so we don't have to manage

• additional custom files for each repo (e.g.custom keywords)
• update dictionary every time something new comes up.