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* feat: add Bitcoin Testnet4 blockchain support - Add BitcoinTestnet4 blockchain type and service - Refactor NodeClient to use explicit config injection - Update exchange services for Testnet4 support * feat: add payout strategies for Bitcoin Testnet4 Add payout infrastructure to enable BTC purchases on Testnet4: - PayoutBitcoinTestnet4Service for handling payouts - BitcoinTestnet4Strategy (payout) for buy order execution - BitcoinTestnet4Strategy (prepare) for auto-confirm workflow * refactor: extract BitcoinBasedClient base class Extract shared code from BitcoinClient into abstract BitcoinBasedClient: - Move common methods (send, sendMany, testMempoolAccept, etc.) to base class - Make walletAddress abstract for network-specific implementation - BitcoinClient and BitcoinTestnet4Client now inherit from BitcoinBasedClient - Reduces code duplication by ~120 lines * test: fix error message assertion in bitcoin-client tests * feat: add DEX strategies for Bitcoin Testnet4 - Add BitcoinTestnet4FeeService with caching support - Add DexBitcoinTestnet4Service for liquidity operations - Add check-liquidity strategy for Bitcoin Testnet4 - Add purchase-liquidity strategy (NoPurchaseStrategy) - Add sell-liquidity strategy (not supported) - Add supplementary strategy for transfers - Register all strategies in dex.module.ts
davidleomay
approved these changes
Feb 3, 2026
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