Replaced all simulated signals with real exchange integration:
- submit_order() places actual limit orders on Hyperliquid testnet
- Real fill tracking via userFills API — deduplicated by transaction ID
- Real position tracking via clearinghouseState
- PnL computed from exchange-reported closedPnl
- Open order management with cancellation on shutdown
Confirmed: SELL 0.0005 BTC @ $65,193 placed on testnet orderbook.
Strategy sizing (100 USDC each):
OFI: 0.0005 BTC, Iceberg: 0.0003 BTC, Funding Arb: 0.001 BTC
Pairs: 0.003 ETH, Avellaneda: 0.0003 BTC
Orders placed every 60s, alternating buy/sell at 2% away from
mark to avoid accidental fills during testing.
ramseshk
bbcf71780d