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/theme.ts

@@ -92,6 +92,12 @@ export const theme = createTheme({
             boxShadow: "0 8px 20px rgba(214,48,49,0.42)",
           },
           "&:active": { transform: "translateY(0) scale(0.97)" },
+          // Honor reduced-motion like MuiButton.root / MuiOutlinedInput: drop
+          // the lift/press transform (glow + brightness stay, they don't move).
+          "@media (prefers-reduced-motion: reduce)": {
+            "&:hover": { transform: "none" },
+            "&:active": { transform: "none" },
+          },
         },
         // Filled colored buttons: WHITE text in BOTH themes (was per-scheme
         // contrastText → near-black text on colored fills in dark mode, which