Close the remaining high-impact parity gaps

Batch of fixes identified by the comparison audit:

Schedule search page (ScheduleSearchPage):
- Resolve IATA codes to city/airport names, so the H1 reads
  'Маршрут: Шереметьево - Санкт-Петербург' instead of 'SVO - LED'.
- Breadcrumb trail now includes the human-friendly route as its
  last entry.

Details page (OnlineBoardDetailsPage):
- Hide the 'Перелет N' leg header for single-leg flights (Angular
  parity — that label is only meaningful for multi-leg routes).
- Translate the leg status through FLIGHT-STATUSES.* instead of
  emitting the raw enum ('Cancelled' → 'Отменен', etc.).
- Humanize leg and total flying time through formatDuration so the
  page reads '1ч 25м' rather than '01:25:00'.

Details meal panel (MealPanel):
- Use the same FOOD.* translation keys as Angular, so labels become
  'Эконом класс / Комфорт класс / Бизнес класс / Специальное
  питание'.
- Add the Special-meal icon + link (was stubbed out previously).

Accessibility:
- Route the English aria-labels through new SHARED.A11Y-* keys in
  DayTabs pagination, FlightListSkeleton, ScrollUpButton and
  PrintButton.

Breadcrumbs:
- Render the 'Главная' crumb as a link even when it's the only /
  last item (it was dropping to plain text on start pages). Angular
  always links it to aeroflot.ru.

Tests updated to assert the new translated labels and duration
formatting; 1258 tests passing.

src/ui/flights/FlightListSkeleton.tsx

@@ -1,4 +1,5 @@
 import type { FC } from "react";
+import { useTranslation } from "@/i18n/provider.js";
 import "./FlightListSkeleton.scss";
 
 export interface FlightListSkeletonProps {
@@ -13,8 +14,9 @@ export interface FlightListSkeletonProps {
 export const FlightListSkeleton: FC<FlightListSkeletonProps> = ({
   count = 5,
 }) => {
+  const { t } = useTranslation();
   return (
-    <div className="flight-list-skeleton" aria-busy="true" aria-label="Loading flights">
+    <div className="flight-list-skeleton" aria-busy="true" aria-label={t("SHARED.A11Y-LOADING-FLIGHTS")}>
       {Array.from({ length: count }, (_, i) => (
         <div key={i} className="flight-list-skeleton__row">
           <div className="flight-list-skeleton__cell flight-list-skeleton__cell--number" />

src/ui/layout/Breadcrumbs.tsx

@@ -31,21 +31,28 @@ export const Breadcrumbs: FC<BreadcrumbsProps> = ({ items = [] }) => {
   return (
     <nav className="breadcrumbs" aria-label="breadcrumb" data-testid="breadcrumbs">
       <ol className="breadcrumbs__list">
-        {allItems.map((item, index) => (
-          <li
-            key={`${item.label}-${index}`}
-            className={`breadcrumbs__item${index === allItems.length - 1 ? " breadcrumbs__item--active" : ""}`}
-          >
-            {item.url && index < allItems.length - 1 ? (
-              <a href={item.url} className="breadcrumbs__link">{item.label}</a>
-            ) : (
-              <span className="breadcrumbs__text">{item.label}</span>
-            )}
-            {index < allItems.length - 1 && (
-              <span className="breadcrumbs__separator">&gt;</span>
-            )}
-          </li>
-        ))}
+        {allItems.map((item, index) => {
+          const isLast = index === allItems.length - 1;
+          // The Home crumb (index 0) is always a link, even on start pages
+          // where it happens to be the only/last item — matches Angular,
+          // which always renders 'Главная' with the aeroflot.ru href.
+          const showAsLink = Boolean(item.url) && (index === 0 || !isLast);
+          return (
+            <li
+              key={`${item.label}-${index}`}
+              className={`breadcrumbs__item${isLast ? " breadcrumbs__item--active" : ""}`}
+            >
+              {showAsLink ? (
+                <a href={item.url} className="breadcrumbs__link">{item.label}</a>
+              ) : (
+                <span className="breadcrumbs__text">{item.label}</span>
+              )}
+              {!isLast && (
+                <span className="breadcrumbs__separator">&gt;</span>
+              )}
+            </li>
+          );
+        })}
       </ol>
     </nav>
   );

src/ui/layout/ScrollUpButton.tsx

@@ -7,11 +7,13 @@
  */
 
 import { type FC, useState, useEffect, useCallback } from "react";
+import { useTranslation } from "@/i18n/provider.js";
 import "./ScrollUpButton.scss";
 
 const SCROLL_THRESHOLD = 300;
 
 export const ScrollUpButton: FC = () => {
+  const { t } = useTranslation();
   const [visible, setVisible] = useState(false);
 
   useEffect(() => {
@@ -34,7 +36,7 @@ export const ScrollUpButton: FC = () => {
       type="button"
       className="scroll-up-button"
       onClick={scrollToTop}
-      aria-label="Scroll to top"
+      aria-label={t("SHARED.A11Y-SCROLL-TO-TOP")}
       data-testid="scroll-up-button"
     >
       <svg viewBox="0 0 24 24" width="24" height="24">