chore: Inline event loop helper functions

[zastrowm]

Description

While reading the through the event loop (in an unrelated POC), it made more sense to me to inline the initialization of state as most of the code was signature + docs, while the actual code is 2 lines each.

Related Issues

N/A

Documentation PR

N/A

Type of Change

Other (please describe): Small refactor

Testing

• hatch fmt --linter
• hatch fmt --formatter
• hatch test --all
• Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

Checklist

• I have read the CONTRIBUTING document
• I have added tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly
• I have added an appropriate example to the documentation to outline the feature
• My changes generate no new warnings
• Any dependent changes have been merged and published

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.