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

Reviewed-on: #16

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");

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "calendar-run-frontend",
   "private": true,
-  "version": "0.1.1",
+  "version": "0.2.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

frontend/src/api/health.ts

@@ -5,6 +5,15 @@ export type HealthResponse = {
   version: string;
 };
 
+export type BackendMetaResponse = {
+  version: string;
+};
+
 export async function getHealth(init?: RequestInit): Promise<HealthResponse> {
   return requestJson<HealthResponse>("/health", init);
 }
+
+/** Версия бэкенда для футера (отдельный путь от /health — меньше ложных блокировок). */
+export async function getBackendMeta(init?: RequestInit): Promise<BackendMetaResponse> {
+  return requestJson<BackendMetaResponse>("/meta", init);
+}

frontend/src/api/http.ts

@@ -8,16 +8,30 @@ function buildUrl(path: string): string {
 }
 
 async function parseResponseBody(response: Response): Promise<unknown> {
-  const contentType = response.headers.get("content-type") ?? "";
+  const text = await response.text();
-  if (!contentType.includes("application/json")) {
+  if (!text.trim()) {
     return null;
   }
 
+  const contentType = response.headers.get("content-type") ?? "";
+  if (contentType.includes("application/json")) {
     try {
-    return await response.json();
+      return JSON.parse(text) as unknown;
     } catch {
       return null;
     }
+  }
+
+  const trimmed = text.trim();
+  if (trimmed.startsWith("{") || trimmed.startsWith("[")) {
+    try {
+      return JSON.parse(text) as unknown;
+    } catch {
+      return null;
+    }
+  }
+
+  return null;
 }
 
 const GATEWAY_RETRY_STATUSES = new Set([502, 503, 504]);

frontend/src/api/index.ts

@@ -1,5 +1,5 @@
 export type { CreateRacePayload, Race, RacesQuery, RaceStatus, UpdateRacePayload } from "./types";
 export { ApiError, getApiErrorMessage } from "./errors";
-export type { HealthResponse } from "./health";
+export type { BackendMetaResponse, HealthResponse } from "./health";
-export { getHealth } from "./health";
+export { getBackendMeta, getHealth } from "./health";
 export { getRaceById, getRaces, createRace, updateRace, deleteRace } from "./races";

frontend/src/app/layouts/AppShellFooter.tsx

@@ -1,22 +1,29 @@
 import { useEffect, useState } from "react";
-import { getHealth } from "../../api";
+import { getBackendMeta } from "../../api";
 import { FRONTEND_VERSION } from "../../frontendVersion";
 
+function isAbortError(error: unknown): boolean {
+  return (
+    (error instanceof DOMException && error.name === "AbortError") ||
+    (error instanceof Error && error.name === "AbortError")
+  );
+}
+
 export function AppShellFooter(): JSX.Element {
   const [backendVersion, setBackendVersion] = useState<string | null>(null);
 
   useEffect(() => {
     const ac = new AbortController();
-    void getHealth({ signal: ac.signal })
+    void getBackendMeta({ signal: ac.signal })
-      .then((h) => {
+      .then((meta) => {
         if (ac.signal.aborted) {
           return;
         }
-        const v = h.version;
+        const v = meta.version;
         setBackendVersion(typeof v === "string" && v.length > 0 ? v : "не указана");
       })
-      .catch(() => {
+      .catch((err) => {
-        if (ac.signal.aborted) {
+        if (ac.signal.aborted || isAbortError(err)) {
           return;
         }
         setBackendVersion("недоступна");