feat: русский UI, версии в футере, даты и устойчивость загрузки API

- API: дата старта всегда YYYY-MM-DD; фронт: parseRaceDate без двойного T00:00:00
- GET /health с version из package.json; Vite define __FRONTEND_VERSION__
- Футер с версиями клиента/сервера (BEM), сетка app-shell на три ряда
- AbortController для карточки старта; ретраи GET при 502–504 и понятные ошибки шлюза
- Русские подписи навигации/страниц, lang=ru, без английских фраз в интерфейсе

frontend/src/pages/DashboardPage.tsx

@@ -9,6 +9,7 @@ import {
   getPaceLabel,
   isCloseDistance,
   parseFinishTimeToSeconds,
+  parseRaceDate,
   splitRacesByDate,
 } from "../lib";
 
@@ -18,7 +19,7 @@ function getErrorMessage(error: unknown): string {
   if (error instanceof ApiError) {
     return error.message;
   }
-  return "Не удалось загрузить данные dashboard.";
+  return "Не удалось загрузить данные обзора.";
 }
 
 export function DashboardPage(): JSX.Element {
@@ -28,23 +29,24 @@ export function DashboardPage(): JSX.Element {
   const [chartDistanceKm, setChartDistanceKm] = useState<number>(10);
 
   useEffect(() => {
+    const ac = new AbortController();
     let isMounted = true;
 
     async function loadDashboardData(): Promise<void> {
       try {
-        const items = await getRaces();
-        if (!isMounted) {
+        const items = await getRaces(undefined, { signal: ac.signal });
+        if (!isMounted || ac.signal.aborted) {
           return;
         }
         setRaces(items);
         setErrorMessage(null);
       } catch (error) {
-        if (!isMounted) {
+        if (ac.signal.aborted || !isMounted) {
           return;
         }
         setErrorMessage(getErrorMessage(error));
       } finally {
-        if (isMounted) {
+        if (isMounted && !ac.signal.aborted) {
           setIsLoading(false);
         }
       }
@@ -53,6 +55,7 @@ export function DashboardPage(): JSX.Element {
     void loadDashboardData();
     return () => {
       isMounted = false;
+      ac.abort();
     };
   }, []);
 
@@ -80,7 +83,7 @@ export function DashboardPage(): JSX.Element {
     }
 
     const currentYear = new Date().getFullYear();
-    const seasonRaces = races.filter((race) => new Date(`${race.date}T00:00:00`).getFullYear() === currentYear);
+    const seasonRaces = races.filter((race) => parseRaceDate(race.date).getFullYear() === currentYear);
     const seasonCompleted = seasonRaces.filter((race) => race.status === "completed");
 
     return {
@@ -130,7 +133,7 @@ export function DashboardPage(): JSX.Element {
       .filter((race) => race.status === "completed")
       .map((race) => ({
         id: race.id,
-        year: new Date(`${race.date}T00:00:00`).getFullYear(),
+        year: parseRaceDate(race.date).getFullYear(),
         title: race.title,
         distance: formatDistance(race.distanceKm),
         finishTime: race.finishTime ?? "время не указано",
@@ -143,7 +146,7 @@ export function DashboardPage(): JSX.Element {
   if (isLoading) {
     return (
       <section className="page page--dashboard" aria-busy="true">
-        <h1 className="page__title">Dashboard</h1>
+        <h1 className="page__title">Обзор</h1>
         <p className="page__subtitle">Загружаем ваши старты...</p>
       </section>
     );
@@ -152,7 +155,7 @@ export function DashboardPage(): JSX.Element {
   if (errorMessage) {
     return (
       <section className="page page--dashboard" role="alert">
-        <h1 className="page__title">Dashboard</h1>
+        <h1 className="page__title">Обзор</h1>
         <p className="page__subtitle page__subtitle--error">{errorMessage}</p>
       </section>
     );
@@ -160,7 +163,7 @@ export function DashboardPage(): JSX.Element {
 
   return (
     <section className="page page--dashboard">
-      <h1 className="page__title">Dashboard</h1>
+      <h1 className="page__title">Обзор</h1>
       <p className="page__subtitle">Ключевые метрики по вашему календарю стартов.</p>
 
       <div className="dashboard-grid" aria-label="Ключевые метрики">
@@ -205,7 +208,7 @@ export function DashboardPage(): JSX.Element {
               <p className="dashboard-card__hint">Лучший темп среди завершённых стартов.</p>
             </>
           ) : (
-            <p className="dashboard-card__empty">Недостаточно данных для PR.</p>
+            <p className="dashboard-card__empty">Недостаточно данных для личного рекорда.</p>
           )}
         </article>
 
@@ -242,7 +245,7 @@ export function DashboardPage(): JSX.Element {
       </section>
 
       <section className="dashboard-section" aria-label="Личные рекорды по дистанциям">
-        <h2 className="dashboard-section__title">PR по дистанциям</h2>
+        <h2 className="dashboard-section__title">Рекорды по дистанциям</h2>
         <div className="dashboard-grid dashboard-grid--pr">
           {personalRecordsByDistance.map((item) => (
             <article key={item.distanceKm} className="dashboard-card">
@@ -291,7 +294,7 @@ export function DashboardPage(): JSX.Element {
             </table>
           </div>
         ) : (
-          <p className="dashboard-card__empty">Нет completed-стартов для сравнения.</p>
+          <p className="dashboard-card__empty">Нет завершённых стартов для сравнения.</p>
         )}
       </section>
     </section>

frontend/src/pages/RaceDetailsPage.tsx

@@ -57,6 +57,7 @@ export function RaceDetailsPage(): JSX.Element {
   const [showDeleteConfirm, setShowDeleteConfirm] = useState<boolean>(false);
 
   useEffect(() => {
+    const ac = new AbortController();
     let isMounted = true;
 
     async function loadRace(): Promise<void> {
@@ -67,19 +68,19 @@ export function RaceDetailsPage(): JSX.Element {
       }
 
       try {
-        const item = await getRaceById(raceId);
-        if (!isMounted) {
+        const item = await getRaceById(raceId, { signal: ac.signal });
+        if (!isMounted || ac.signal.aborted) {
           return;
         }
         setRace(item);
         setErrorMessage(null);
       } catch (error) {
-        if (!isMounted) {
+        if (ac.signal.aborted || !isMounted) {
           return;
         }
         setErrorMessage(getErrorMessage(error));
       } finally {
-        if (isMounted) {
+        if (isMounted && !ac.signal.aborted) {
           setIsLoading(false);
         }
       }
@@ -88,6 +89,7 @@ export function RaceDetailsPage(): JSX.Element {
     void loadRace();
     return () => {
       isMounted = false;
+      ac.abort();
     };
   }, [raceId]);
 

frontend/src/pages/RaceFormPage.tsx

@@ -54,8 +54,9 @@ const EMPTY_FORM: FormData = {
 };
 
 function raceToFormData(race: Race): FormData {
+  const dateValue = race.date.length >= 10 ? race.date.slice(0, 10) : race.date;
   return {
-    date: race.date,
+    date: dateValue,
     title: race.title,
     distanceKm: String(race.distanceKm),
     status: race.status ?? "",
@@ -310,7 +311,7 @@ export function RaceFormPage(): JSX.Element {
               name="officialUrl"
               value={form.officialUrl}
               onChange={handleChange}
-              placeholder="https://example.com"
+              placeholder="https://…"
             />
           </label>
 

frontend/src/pages/RacesPage.tsx

@@ -100,24 +100,25 @@ export function RacesPage(): JSX.Element {
   }, [yearFilter, monthFilter]);
 
   useEffect(() => {
+    const ac = new AbortController();
     let isMounted = true;
 
     async function loadRaces(): Promise<void> {
       setIsLoading(true);
       try {
-        const items = await getRaces(listQuery);
-        if (!isMounted) {
+        const items = await getRaces(listQuery, { signal: ac.signal });
+        if (!isMounted || ac.signal.aborted) {
           return;
         }
         setRaces(items);
         setErrorMessage(null);
       } catch (error) {
-        if (!isMounted) {
+        if (ac.signal.aborted || !isMounted) {
           return;
         }
         setErrorMessage(getErrorMessage(error));
       } finally {
-        if (isMounted) {
+        if (isMounted && !ac.signal.aborted) {
           setIsLoading(false);
         }
       }
@@ -126,6 +127,7 @@ export function RacesPage(): JSX.Element {
     void loadRaces();
     return () => {
       isMounted = false;
+      ac.abort();
     };
   }, [listQuery]);