- ALTER TYPE incident_type ADD VALUE 'transport' (isolated migration) - trucks table with truck_no (unique), carrier, active, RLS mirroring sites - incidents.truck_id UUID FK + index Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CPf5Rc8QPx6V8KLEEgfKEQ