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>
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@@ -10,12 +10,12 @@ const LEAVE_TYPE_LABELS: Record<string, string> = {
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};
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function formatDate(dateStr: string): string {
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try {
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const d = new Date(dateStr);
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return localDateCzStr(d);
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} catch {
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return dateStr;
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}
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// `new Date(invalid)` returns an Invalid Date object (it never throws), so a
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// try/catch can't detect a bad input — check the timestamp explicitly and
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// fall back to the raw string when unparseable.
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const d = new Date(dateStr);
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if (Number.isNaN(d.getTime())) return dateStr;
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return localDateCzStr(d);
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}
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function escapeHtml(str: string): string {
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@@ -31,7 +31,7 @@ function escapeHtml(str: string): string {
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// can set their first_name to "attacker\nBcc: victim@x.com" via the
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// profile editor and pivot into sending mail as noreply@boha.cz.
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function sanitizeHeaderValue(str: string): string {
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// eslint-disable-next-line no-control-regex
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return str
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.replace(/[\r\n\t\0]/g, " ")
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.replace(/\s+/g, " ")
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