feat: /meta для версии в футере и устойчивый разбор JSON

backend/src/app.ts

@@ -7,7 +7,9 @@ import racesRouter from "./routes/races";
 export function createApp(): express.Express {
   const app = express();
 
-  app.use(cors({ origin: config.corsOrigin, methods: ["GET", "POST", "PATCH", "DELETE"] }));
+  app.use(
+    cors({ origin: config.corsOrigin, methods: ["GET", "POST", "PATCH", "DELETE", "OPTIONS"] }),
+  );
   app.use(express.json());
 
   app.use(healthRouter);

backend/src/routes/health.ts

@@ -8,6 +8,11 @@ router.get("/health", (_req: Request, res: Response) => {
   res.json({ status: "ok", version: getBackendVersion() });
 });
 
+/** Версия для UI; путь без «health», чтобы реже резался фильтрами/прокси. */
+router.get("/meta", (_req: Request, res: Response) => {
+  res.json({ version: getBackendVersion() });
+});
+
 router.get("/ready", async (_req: Request, res: Response) => {
   const dbOk = await checkDbConnection();
   if (dbOk) {