1.0.0-rc82

(feat): Implement HTTP status code-based retry logic with exponential backoff. The SDK now automatically retries requests that fail with retryable HTTP status codes (408, 429, 500, 502, 503, 504, 521, 522, 524) using exponential backoff with jitter. The retry logic respects Retry-After headers when present. This addresses the feature gap where the SDK previously only used Net::HTTP’s network-level retries, which don’t handle HTTP status codes like 429 (Too Many Requests). The max_retries parameter now controls application-level retries with proper backoff, enabling compliance with rate-limiting requirements like Square App Marketplace.