- Normalize email (trim + downcase) before filter lookup - Log warning when API returns multiple contacts for same email - Add Bypass tests for find_contact_by_email (query params, empty/single response parsing) - Document vereinfacht_required_field? as legacy/unused in vereinfacht-api.md - Add bypass dependency (dev+test) for HTTP stubbing
- find_contact_by_email uses GET with filter[isExternal]=true and filter[email] - vereinfacht_required_member_fields is now empty (API accepts minimal payload)
- Config, Client, SyncContact, Vereinfacht module tests (no real API) - vereinfacht_test_README: document test scope