dominicrume/cantor8_kya_rails: docs/complexity.md

Complexity: the number, and why it sits where it does The auditor reports mean cyclomatic complexity across the Python in this repository. It was 4.21. The refactoring below took it to 3.18, and adding the WhatsApp webhook adapter moved it to 3.26. The auditor's warning threshold is 3.00, so it…