feat: add debug logging for model converse requests

[RingoIngo2]

Description

strands exposes messages, system_prompt, and tool_configs. Still, one cannot completely reconstruct the converse API request bodies since e.g., the conversation_manager might truncate messages / tool outputs. The one-liner added in this PR will log the request bodies. This is helpful to exactly reconstruct what was sent to the model.

We do this in types.models.model.Model abstract base class such that the logging is effective for all model providers.

Related Issues

N/A

Documentation PR

N/A

Type of Change

Chore: Adding more debug logging

Testing

For testing, we added a unit test (which we think is not really required and we are happy to remove it before merging in a new revision).

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• [N/A] I have updated the documentation accordingly
• [N/A] I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

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[zastrowm]

Thanks - nice improvement 👍