Function isInsufficientCreditsMessage

src/utils/engineErrorHandler.ts:104–115

* Checks if the error message indicates insufficient credits

(message: string)

 * Checks if the error message indicates insufficient credits
 */
function isInsufficientCreditsMessage(message: string): boolean {
  const lowerMessage = message.toLowerCase();
  return (
    lowerMessage.includes('insufficient') ||
    lowerMessage.includes('credit') ||
    lowerMessage.includes('quota') ||
    lowerMessage.includes('balance too low') ||
    lowerMessage.includes('billing') ||
    lowerMessage.includes('payment required') ||
    lowerMessage.includes('exceeded')
  );
}

/**
 * Normalizes raw API errors into typed error classes.