// Two-sided private settlement (relayer-only). Verifies maker + taker
// half-proofs and writes both payout commitments atomically.
function settleAuth(SettleAuthParams calldata p) external;
 
// Single private settlement against a whitelisted external DEX router.
function settleWithDex(SettleDexParams calldata p) external;
 
// Cancel an active order — spends maker's leaf, writes a fresh
// change commitment for the unspent balance.
function cancelPrivate(CancelParams calldata p) external;
 
// Claim a stealth-addressed payout. Verifier checks the `claim`
// circuit; the contract enforces `releaseTime`.
function claimWithProof(
  uint[2]    calldata proofA,
  uint[2][2] calldata proofB,
  uint[2]    calldata proofC,
  bytes32             claimsRoot,
  bytes32             claimNullifier,
  uint256             amount,
  address             token,
  address             recipient,
  uint256             releaseTime
) external;
 
// Batch up to MAX_CLAIM_BATCH_SIZE claims atomically.
function claimWithProofBatch(ClaimParams[] calldata claims) external;

PrivateSettlement
├── claimVerifier            (immutable)
├── authorizeVerifier        (admin-settable via setAuthorizeVerifier)
├── cancelVerifier           (admin-settable via setCancelVerifier)
└── batchAuthorizeVerifier   (admin-settable via setBatchAuthorizeVerifier)

Deposit verifier lives on `CommitmentPool` and is called via that
contract's `deposit` entry — settlement does not see it directly.

event PrivateClaim(
  bytes32 indexed claimsRoot,
  bytes32 indexed nullifier,
  address indexed recipient,
  address         token,
  uint256         amount
);
 
event PrivateCancel(
  bytes32 indexed escrowNullifier,
  bytes32 indexed nonceNullifier,
  bytes32         newCommitment,
  address indexed relayer
);
 
event PrivateSettledAuth(
  bytes32 indexed makerNullifier,
  bytes32 indexed takerNullifier,
  bytes32         claimsRootMaker,
  bytes32         claimsRootTaker,
  address indexed makerRelayer,
  address         takerRelayer,
  address         submitter,
  uint96          feeTokenMaker,
  uint96          feeTokenTaker
);
 
event SettledWithDex(/* …see contract source for full shape… */);