- Replace real phone numbers in tests with Ofcom-reserved fictitious
numbers (447700900xxx range) throughout test suite
- Add SIGNAL_NUMBER to stack.env.example documenting required env var
- Update pre-commit hooks to latest versions (black 26.3.0, isort 8.0.1,
flake8 7.3.0, djhtml 3.0.10, ripsecrets v0.1.11)
- Add CLAUDE.md with rule prohibiting real contact identifiers in code
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>