fix: 2026-06-09 full-codebase audit hardening

Validation: shared NaN-guarded Zod coercion helpers in schemas/common.ts replace
the raw number|string transform idiom across every schema (the root-cause NaN bug
class); emailOrEmpty + lenient isoDateString/timeString.

Security: roles privilege-escalation closed; refresh-token family revocation on
reuse; TOTP uses config params; read endpoints permission-guarded; received-invoices
gross VAT on all paths; orders-pdf custom-items authz.

Concurrency: $queryRaw SELECT...FOR UPDATE locks in ascending-id order (warehouse
confirm/cancel, attendance lockUserRow); uniqueness checks moved into create
transactions (TOCTOU -> 409); deterministic id tiebreak on second-precision
timestamp ordering (plan resolveCell/resolveGrid, warehouse FIFO).

Frontend: Rules-of-Hooks fixed across ~14 pages + PlanCellModal; UTC-date persisted
fields; dashboard invalidation gaps; stale-closure confirm bugs.

Tooling/tests: ESLint flat config (react-hooks/rules-of-hooks = error) + Prettier;
tsconfig.test.json so tsc -b type-checks the tests; removed 3 dead deps; npm audit
fix (8 -> 3). Suite 195 -> 247 (happy-path auth, FIFO oldest-first, flakiness fixes),
isolated on app_test via .env.test with a hard-throw setup guard.

Gates: tsc 0 | build 0 | vitest 247/247 | eslint 0 errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/admin/components/dashboard/DashKpiCards.tsx

@@ -1,4 +1,4 @@
-import { motion } from "framer-motion";
+import { motion, useReducedMotion } from "framer-motion";
 import Box from "@mui/material/Box";
 import Typography from "@mui/material/Typography";
 import { StatCard, type StatCardColor } from "../../ui";
@@ -121,6 +121,7 @@ const KPI_COLOR_MAP: Record<string, StatCardColor> = {
 };
 
 export default function DashKpiCards({ dashData }: DashKpiCardsProps) {
+  const reduce = useReducedMotion();
   const kpiCards = buildKpiCards(dashData);
   if (kpiCards.length === 0) {
     return null;
@@ -129,8 +130,8 @@ export default function DashKpiCards({ dashData }: DashKpiCardsProps) {
   return (
     <Box
       component={motion.div}
-      initial={{ opacity: 0, y: 12 }}
-      animate={{ opacity: 1, y: 0 }}
+      initial={reduce ? false : { opacity: 0, y: 12 }}
+      animate={reduce ? undefined : { opacity: 1, y: 0 }}
       transition={{ duration: 0.25, delay: 0.06 }}
       sx={{
         display: "grid",