Execution Flow

1. User signs intent
   └─ EIP-712 typed data, bound to deadline + nonce + fee/swap hashes
2. Intent posted to relay
   └─ POST /v1/bundle (signature + intent body)
3. Solver picks intent
   └─ Solver verifies signature, simulates the bundle, locks fee
4. Solver submits source-chain tx
   └─ Source: ERC20 pull (Permit2/permit), swap, bridge-emit
5. Cross-chain message in flight
   └─ Bridge relayer (Across/Mayan/CCTP/...) carries the message
6. Solver submits destination-chain tx
   └─ Destination: receive, swap (if any), final action (LP/deposit/transfer)
7. Status updated
   └─ getZapTxnStatus() returns step-level status until "completed"

const status = await dzap.getZapTxnStatus({
  txId: '...',           // Returned at quote time
});

// status.steps[i] => { protocol, status, txHash, ... }