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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@@ -310,7 +310,7 @@ export default async function companySettingsRoutes(
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settings.custom_fields as string | null,
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);
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// eslint-disable-next-line @typescript-eslint/no-var-requires
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const pkg = require("../../../package.json") as { version: string };
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let available_vat_rates: number[] = [0, 10, 12, 15, 21];
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@@ -354,7 +354,7 @@ export default async function companySettingsRoutes(
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"/system-info",
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{ preHandler: requirePermission("settings.system") },
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async (request, reply) => {
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// eslint-disable-next-line @typescript-eslint/no-var-requires
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const pkg = require("../../../package.json") as { version: string };
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const uptimeSec = process.uptime();
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const days = Math.floor(uptimeSec / 86400);
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@@ -464,8 +464,12 @@ export default async function companySettingsRoutes(
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if (bodyRec[f] !== undefined)
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data[f] = bodyRec[f] ? String(bodyRec[f]) : null;
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}
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if (body.default_vat_rate !== undefined)
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data.default_vat_rate = Number(body.default_vat_rate);
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if (body.default_vat_rate !== undefined) {
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const vat = Number(body.default_vat_rate);
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if (!Number.isFinite(vat))
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return error(reply, "Neplatná sazba DPH", 400);
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data.default_vat_rate = vat;
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}
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if (body.require_2fa !== undefined) data.require_2fa = !!body.require_2fa;
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const numFields = [
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@@ -478,7 +482,12 @@ export default async function companySettingsRoutes(
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"max_requests_per_minute",
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] as const;
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for (const f of numFields) {
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if (bodyRec[f] !== undefined) data[f] = Number(bodyRec[f]);
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if (bodyRec[f] !== undefined) {
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const n = Number(bodyRec[f]);
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if (!Number.isFinite(n))
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return error(reply, `Neplatná hodnota nastavení: ${f}`, 400);
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data[f] = n;
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}
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}
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if (body.available_vat_rates !== undefined)
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