Localize system payroll statement labels in Russian

frontend/src/components/finance/PayrollStatementDetailModal.tsx

@@ -31,6 +31,7 @@ import {
   formatPayrollDateTime,
   formatPayrollMoney,
   getPayrollLineDirection,
+  getPayrollLineLabel,
   getPayrollPeriodLabel,
   getPayrollPeriodRange,
   groupPayrollLines,
@@ -407,7 +408,7 @@ export function PayrollStatementDetailModal({
                               <div className="min-w-0">
                                 <div className="flex flex-wrap items-center gap-1.5">
                                   <p className="text-sm font-medium text-[var(--foreground)]">
-                                    {line.label}
+                                    {getPayrollLineLabel(line)}
                                   </p>
                                   {line.is_retro ? (
                                     <span className="app-badge app-badge-accent px-2 py-0.5 text-[0.65rem]">

frontend/src/lib/payroll.test.js

@@ -6,6 +6,7 @@ import {
   formatPayrollDate,
   formatPayrollMoney,
   getPayrollLineDirection,
+  getPayrollLineLabel,
   getPayrollPeriodLabel,
   groupPayrollLines,
   normalizePayrollStatements,
@@ -76,3 +77,29 @@ test("payroll lines are grouped and debit-like lines have a negative direction",
   assert.equal(getPayrollLineDirection("deduction"), "negative");
   assert.equal(getPayrollLineDirection("payment"), "negative");
 });
+
+test("calculator-generated statement labels are displayed in Russian without changing snapshots", () => {
+  for (const [code, label, expected] of [
+    ["BASE", "Base accrual", "Оклад"],
+    ["POINT_ADJUSTMENT", "Point-based recalculation", "Перерасчёт по баллам"],
+    ["POINT_EXCESS", "Points above target", "Доплата за баллы сверх нормы"],
+  ]) {
+    const line = Object.freeze({ code, label, amount: "80000.00" });
+    assert.equal(getPayrollLineLabel(line), expected);
+    assert.equal(line.label, label);
+    assert.equal(line.amount, "80000.00");
+  }
+  assert.equal(getPayrollLineLabel({ code: "BASE", label: " BASE ACCRUAL " }), "Оклад");
+});
+
+test("Russian and custom payroll labels are preserved", () => {
+  for (const line of [
+    { code: "BASE", label: "Базовое начисление" },
+    { code: "POINT_ADJUSTMENT", label: "Перерасчёт по баллам" },
+    { code: "BONUS", label: "Премия" },
+    { code: "CUSTOM_BONUS", label: "Performance bonus" },
+    { code: "CUSTOM_BASE", label: "Base accrual" },
+  ]) {
+    assert.equal(getPayrollLineLabel(line), line.label);
+  }
+});

frontend/src/lib/payroll.ts

@@ -171,6 +171,33 @@ export function groupPayrollLines(
     .map((key) => ({ key, label: labels[key], lines: groups[key] }));
 }
 
+// Localize labels produced by the language-neutral calculator at display time.
+// Historical statement snapshots and user-defined labels remain unchanged.
+const SYSTEM_LINE_LABELS: Record<string, { original: string; russian: string }> = {
+  BASE: { original: "Base accrual", russian: "Оклад" },
+  POINT_ADJUSTMENT: {
+    original: "Point-based recalculation",
+    russian: "Перерасчёт по баллам",
+  },
+  POINT_EXCESS: {
+    original: "Points above target",
+    russian: "Доплата за баллы сверх нормы",
+  },
+};
+
+export function getPayrollLineLabel(
+  line: Pick<PayrollStatementLine, "code" | "label">,
+): string {
+  const systemLabel = SYSTEM_LINE_LABELS[line.code];
+  if (
+    systemLabel &&
+    line.label.trim().toLowerCase() === systemLabel.original.toLowerCase()
+  ) {
+    return systemLabel.russian;
+  }
+  return line.label;
+}
+
 export function getPayrollLineDirection(
   kind: PayrollStatementLine["kind"],
 ): "positive" | "negative" {