DeFi Skill Provides DeFi operations across two protocols: - ALEX DEX — Automated Market Maker (AMM) on Stacks for token swaps. Uses the alex-sdk for routing and price discovery. Mainnet-only. - Zest Protocol — Lending and borrowing protocol on Stacks. Supply assets to earn interest, borrow against collateral. Mainnet-only. Write operations (swap, supply, withdraw, borrow, repay, claim-rewards) require an unlocked wallet (use first). Read operations (get-swap-quote, get-pool-info, list-pools, list-assets, get-position) also require an unlocked wallet for routing context. Usage Subcommands alex…