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

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") ?? "";
-  if (!contentType.includes("application/json")) {
+  const text = await response.text();
+  if (!text.trim()) {
     return null;
   }
 
-  try {
-    return await response.json();
-  } catch {
-    return null;
+  const contentType = response.headers.get("content-type") ?? "";
+  if (contentType.includes("application/json")) {
+    try {
+      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 { getHealth } from "./health";
+export type { BackendMetaResponse, HealthResponse } 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 })
-      .then((h) => {
+    void getBackendMeta({ signal: ac.signal })
+      .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(() => {
-        if (ac.signal.aborted) {
+      .catch((err) => {
+        if (ac.signal.aborted || isAbortError(err)) {
           return;
         }
         setBackendVersion("недоступна");