Warn me before I get liquidated on Hyperliquid

Reads the user's public wallet positions on Hyperliquid using a read-only scanner — no private keys required. It monitors open perp positions, tracks the current mark price against each position's liquidation price, and calculates the margin ratio in real time. When any position's margin ratio falls below a configurable warning threshold (e.g. within 10% of liquidation), it fires an alert with the affected position, current price, liquidation price, and estimated time to liquidation at current trend. It can also suggest safer options (reduce size, add margin) but any transaction requires explicit user approval.