Who can register aggregator on XAPI?

[jiguantong]

https://github.com/ringecosystem/xapi-contracts/blob/main/xapi/contracts/XAPI.sol#L95

XAPI Community MultiSig?

Or Aggregator owner?

• This will become chaotic, as anyone can register an Aggregator, just like AssetHub that anyone can register asset.
• Nonce conflict with publish if using mpc.

[jiguantong]

Anyone (Aggregator via mpc) https://github.com/ringecosystem/xapi-contracts/pull/5