Add pyrefly and pyrefly-docs configuration

[adamtheturtle]

Add pyrefly type checker and pyrefly-docs hooks to pre-commit configuration.

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Note

Introduces pyrefly checks and aligns CLI option decorators with stricter typing.

• Add pre-push hooks pyrefly and pyrefly-docs in .pre-commit-config.yaml and include them in CI skip list
• Add pyrefly==0.46.1 to dev dependencies in pyproject.toml
• Refactor vws_cli/options/credentials.py and vws_cli/options/targets.py:
  • Switch option decorator signatures/variables to Callable[..., Any]
  • Return click.option(...)(command) directly and remove intermediate variables/asserts

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