New audit categories: OUTBOUND_CONNECTION_CHANGE, OUTBOUND_HTTP_TRUST_CHANGE. Controller-level @PreAuthorize defaults to ADMIN; GETs relaxed to ADMIN|OPERATOR. SecurityConfig permits OPERATOR GETs on /api/v1/admin/outbound-connections/**. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>