Method fetchWithRetry

web/lib/api/client.ts:118–144

(
    url: string,
    init: RequestInit,
    attempt = 0
  )

  }

  private async fetchWithRetry(
    url: string,
    init: RequestInit,
    attempt = 0
  ): Promise<Response> {
    try {
      if (attempt > 0) {
        console.debug(`[api] retry ${attempt}/${MAX_RETRY_ATTEMPTS - 1} ${init.method ?? "GET"} ${url}`);
      } else {
        console.debug(`[api] → ${init.method ?? "GET"} ${url}`);
      }
      const res = await fetch(url, init);
      console.debug(`[api] ← ${res.status} ${url}`);

      if (res.status >= 500 && attempt < MAX_RETRY_ATTEMPTS - 1 && !init.signal?.aborted) {
        await sleep(backoffMs(attempt));
        return this.fetchWithRetry(url, init, attempt + 1);
      }
      return res;
    } catch (err) {
      if (!isAbortError(err) && attempt < MAX_RETRY_ATTEMPTS - 1) {
        await sleep(backoffMs(attempt));
        return this.fetchWithRetry(url, init, attempt + 1);
      }
      throw err;
    }
  }

  /**
   * Core fetch method. Applies auth headers, timeout, and retry logic.