The test was failing because mock.calls[0] was getting calls
from the previous test. Added mockClear() in beforeEach to
ensure each test starts with fresh mock state.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Remove obsolete instruction documents (PROMPT_*.md, SECURITY_FIXES.md)
- Update CLAUDE.md with security features, test suite, audit logs
- Merge Techstack_Dokumentation into INFRASTRUCTURE.md
- Update SECURITY.md with custom login route documentation
- Add changelog to TODO.md
- Update email service and data masking for SMTP error handling
- Extend test coverage for CSRF and data masking
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>