Function retryWithBackoff

retryWithBackoff<T>(
    operation: () => Promise<T>,
    config?: RetryConfig,
    context?: string,
): Promise<T>
Execute an async operation with automatic retry on transient failures.

NEVER retries:
- Rate-limit errors (code 2028, 85131, HTTP 429)
- CAPTCHA errors (code 9001, 12087)
- Permanent errors (4xx client errors except 408)
DOES retry:
- Network errors (ECONNRESET, ETIMEDOUT, ENOTFOUND)
- Server errors (5xx)
- Timeout errors (408, ECONNABORTED)
- Custom retryable errors in config
Type Parameters
- T
Parameters
- operation: () => Promise<T>
  Async function to execute
- config: RetryConfig = DEFAULT_RETRY_CONFIG
  Retry configuration (uses DEFAULT_RETRY_CONFIG if not provided)
- context: string = 'Operation'
  Human-readable context for logging (e.g., "Upload file abc.txt")
Returns Promise<T>
Promise resolving to operation result

Throws
Last error if all retry attempts fail
- Defined in utils/retry.ts:117