New checks (from EUIPO reference case):
- Check 9: Third-party DSE link — detects when consent dialog links to
external domain's privacy policy instead of own DSE (Art. 13 DSGVO)
- Check 10: Dark-pattern language — detects "muessen/erforderlich" for
non-essential cookies suggesting false technical necessity (EDPB Rn. 70)
- Check 11: Non-modal dismiss = consent — detects when clicking outside
dialog closes it (possibly treating as consent, Planet49 violation)
Refactor: extracted _check_banner_text (375 LOC) from consent_scanner.py
into services/banner_text_checker.py to keep both files under 500 LOC.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>