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

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "calendar-run-backend",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "private": true,
   "scripts": {
     "build": "tsc",

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) {

backend/test/app.test.ts

@@ -17,6 +17,18 @@ test("GET /api/health returns ok (prefix without proxy strip)", async () => {
   assert.equal(res.body.status, "ok");
 });
 
+test("GET /meta returns version for UI footer", async () => {
+  const res = await request(app).get("/meta").expect(200);
+  assert.equal(typeof res.body.version, "string");
+  assert.ok(res.body.version.length > 0);
+});
+
+test("GET /api/meta mirrors GET /meta", async () => {
+  const res = await request(app).get("/api/meta").expect(200);
+  assert.equal(typeof res.body.version, "string");
+  assert.ok(res.body.version.length > 0);
+});
+
 test("GET /ready succeeds with mock database", async () => {
   const res = await request(app).get("/ready").expect(200);
   assert.equal(res.body.status, "ready");