Release Notes v1.3.0: Redis-Backed Quota Tracking & Rate Limiting

Solidrix Send v1.3.0 addresses rate-limiting issues when sending high-volume campaigns through third-party gateways. ### What is New: - **Atomic Redis Quota Tracking**: Track daily/monthly limits of all connected gateway accounts in real-time. - **Auto-Failover on Quota Expiry**: If your connected AWS SES account hits its daily limit, Solidrix Send automatically pauses routing through that gateway and cascades traffic to the next active provider. - **Rate Limit Adjusters**: Set custom messages-per-second values per gateway to respect third-party warm-up requirements.