VENUS-4 Venus appEvents conform to fleet standard: categoryId uuid FK->lookupOptions + seed appEventCategory group + backfill w/ renames (access->authz, app->system, client-env->client); add 4 promoted cols (httpStatus/durationMs/path/failureCode); canonical logError/logWarn/logInfo wrappers + pickKnown + isCritical sync-bypass; canonical v_appEvents_* views; error-tier retention job (180d, GUC-bypass); re-level 1435 perf/warn rows->info; legacy_events sink decision for ~1552 rows. BLOCKED on committed SSOT + Elazar priority call.