Add Staking related APIs to Exchange: Transfer from Spot -> Staking and Staking Delegation

[perplover]

Summary

Add staking APIs for

• transferring from spot to staking
• staking delegation

Transferring from Spot to Staking

Message payload looks like:

{
    "types": {
        ...
        "HyperLiquidTransaction:CDeposit": [
            {"name": "hyperliquidChain", "type": "string"},
            {"name": "wei", "type": "uint64"},
            {"name": "nonce", "type": "uint64"},
        ],
        ...
     },
    "primaryType": "HyperliquidTransaction:CDeposit",
    "domain": {
        ...
        "chainId": 1,
        ...
    },
    "message": {
        "type": "cDeposit",
        "wei": 100000000,
        "nonce": <timestamp>,
        "signatureChainId": "0x1",
        "hyperliquidChain": "Mainnet"
    }
}

The key differences are the message, the signatureChainId and chainId

img1	img2

Staking Delegation

Message payload looks like:

{
    "types": {
        ...
        "HyperLiquidTransaction:TokenDelegate": [
            {"name": "hyperliquidChain", "type": "string"},
            {"name": "validator", "type": "address"},
            {"name": "wei", "type": "uint64"},
            {"name": "isUndelegate", "type": "bool"},
            {"name": "nonce", "type": "uint64"},
        ],
        ...
     },
    "primaryType": "HyperliquidTransaction:TokenDelegate",
    "domain": {
        ...
        "chainId": 1,
        ...
    },
    "message": {
        "type": "tokenDelegate",
        "validator": "0x..x",
        "wei": 100000000,
        "isUndelegate": false,
        "nonce": <timestamp>,
        "signatureChainId": "0x1",
        "hyperliquidChain": "Mainnet"
    }
}

The key differences are the message, the signatureChainId and chainId

img1	img2	img3

[cr0fx]

Thank you, very helpful. :) Would the opposite be easy to add as well in another PR (I imagine it involves the same but with reversal)?

1. Undelegate stake from a validator
2. Transfer from Staking to spot