Document camel case splitter behaviour

[modelpatternlooks-bot]

Summary

• add documentation explaining the camel case splitting approach and its regex
• link the root README to the new explanation file for easier discovery

Testing

• pytest

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Codex Task

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Declare package discovery for text_utils module

pyproject.toml defines project metadata (lines 5–9) but never configures any packages/py_modules or a tool.setuptools.packages.find stanza. With setuptools’ PEP 621 backend, nothing is installed by default, so pip install . will build a wheel containing only dist-info and omit src/text_processing.py, leaving consumers unable to import the module. Add package discovery for the src layout so the code is actually shipped.

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