nBTC Redeem: use events to handle recordIkaSignature

[robert-zaremba]

1. query all redeem request inputs that are ready to sign
2. for each input
   2.1 if sing request wasn't sent: create a tx to request ika signature
   2.2 otehrwise: optimistically try to call smart contract to finalize the signature (recordIkaSig)

we want to change step 2. to

2.1 keep
2.2 remove - and instead move the logic to sui-indexer event handler -- when Ika made a signature, it creates an event with signature result (we need to check the status if it was successful or not)

Context: https://github.com/gonative-cc/workers/blob/master/packages/redeem_solver/src/service.ts#L67

[robert-zaremba]

Depends on gonative-cc/sui-native#289

[Rcc999]

Event for reject signature from ika: https://github.com/dwallet-labs/ika/blob/main/deployed_contracts/testnet/ika_dwallet_2pc_mpc/sources/coordinator_inner.move#L1918

[robert-zaremba]

ETA: Mon Jan 19