List RHC price alerts (PRO+)

List every Robinhood Chain market-cap price alert you own, active and paused, newest first. Each alert carries its token, the baseline market cap captured at creation, the drop_pct / recovery_pct thresholds, its current status (watching, then dipped, then recovered), the dip low, delivery config and expiry. Alerts are evaluated as trades land (event-driven off the chain trade feed, a few seconds of latency), with periodic table polls as a safety net. The quota counts active alerts only and is separate from Solana: PRO 5, ULTRA 50, BUSINESS 150.