Feat: Change position of item of Action enum

[magj2006]

Considering that the items in the Action enum may change, I propose moving Respond and AddToken to the front of the Action enum. The main reason for this proposal is that the Solana client, upon receiving messages from the ExocoreGateway, executes logic based on the action in the message. If there are changes to the items in the Action enum, it may affect the values of these two items, forcing the Solana client to update accordingly to accommodate such changes.

expect:
enum Action {
Respond,
REQUEST_ADD_WHITELIST_TOKEN,
...
}

[MaxMustermann2]

Is the idea that we fix the position of the enum items forever, with those two items in the front? Related: #26

[adu-web3]

I think the things that really matter is that we should agree on a stable version for Action and use github CI to check that existed actions can not be changed anymore and only appending new ones are allowed

[adu-web3]

enum Action {
    RESPOND,
    REQUEST_ADD_WHITELIST_TOKEN,
    REQUEST_DEPOSIT_LST,
    REQUEST_DEPOSIT_NST,
    REQUEST_WITHDRAW_LST,
    REQUEST_WITHDRAW_NST,
    REQUEST_SUBMIT_REWARD,
    REQUEST_CLAIM_REWARD,
    REQUEST_DELEGATE_TO,
    REQUEST_UNDELEGATE_FROM,
    REQUEST_DEPOSIT_THEN_DELEGATE_TO,
    REQUEST_MARK_BOOTSTRAP,
    REQUEST_ASSOCIATE_OPERATOR,
    REQUEST_DISSOCIATE_OPERATOR
}

this could be a possibly stable version for Action

[magj2006]

enum Action {
    RESPOND,
    REQUEST_ADD_WHITELIST_TOKEN,
    REQUEST_DEPOSIT_LST,
    REQUEST_DEPOSIT_NST,
    REQUEST_WITHDRAW_LST,
    REQUEST_WITHDRAW_NST,
    REQUEST_SUBMIT_REWARD,
    REQUEST_CLAIM_REWARD,
    REQUEST_DELEGATE_TO,
    REQUEST_UNDELEGATE_FROM,
    REQUEST_DEPOSIT_THEN_DELEGATE_TO,
    REQUEST_MARK_BOOTSTRAP,
    REQUEST_ASSOCIATE_OPERATOR,
    REQUEST_DISSOCIATE_OPERATOR
}

this could be a possibly stable version for Action

Yeah, stable it like this. and we can only add new item, not allow to delete.