Refactor user sync to dynamic field mappings, handle arrays, and store roles as attributes
- Added a dynamic WP-to-Keycloak field mapping system (no more hardcoded fields).
- Moved WordPress roles to attributes.roles.
- Always sets enabled and emailVerified to true for new Keycloak users.
- Introduced export/import for mappings via JSON.
- Added a “Consult a User’s Fields” tool to see WP_User properties and meta.