Check withdraw status via clearing library deployed on neutron

[elenamik]

The UI currently mocks the completion of the withdraw with a timer. The status should be queried from the chain

1. obtain the ID on the withdraw request. Can be done one of two ways:

• read the ID from the event WithdrawRequested(currentWithdrawRequestId, owner, receiver, postFeeShares)
• (WIP) read the ID from the indexer /vaultAddress/withdrawRequest?ethereum_address=${EVM_ADDRESS}

2. Check the status of the withdraw ID in the clearing library deployed on neutron along with the vault

• the status can be checked with the ObligationStatus query. settled=true means it is completed, settled=false means its in progress.

{
 "obligation_status": {
  "id": u64
 }
}

• FYI IMPORTANT NOTE: it will take some time for the withdraw ID created on EVM to be queriable on neutron. In the meantime the query will error, so this should be handled somehow.

[elenamik]

Schema of obligation status query will change to

pub enum ObligationStatus {
    InQueue,
    Processed,
    Error(String),
}

Relevant PR: https://github.com/timewave-computer/valence-protocol/pull/368/files#diff-c5e6227e287b3af390e04eca3f9db822e9d7e193f9046d514a923ce8f1eb15ef

[elenamik]

calling this indexer with withdraw requests added in #19.

STILL TODO: fetch status from clearing library for each request