Active-views refactor: DB views for deletedAt/isDemo filtering

22 src files refactored from inline deletedAt/isDemo predicates to 10 new vActive* views (security_invoker=true); migration venus41-active-views.sql + db/schema.md updated. Deliberate base-table keeps: writes/FOR UPDATE/write-guards/index-mirroring dedup + auth/persona/impersonation identity paths (deletedAt-only semantics). audit-venus-ca pre-push review caught+coder fixed 2 blockers (soporte-cron quote, persona-switch demo-visibility) + coder reverted an impersonation-lookup regression same class. Pushed 1548b15 (v0.90.0). PASS:1548b15 live-verified dpl_BDgRMG56wXkVnHpV2Q3sUAkgJa28.