BIT-0006: Subnet lending

[l0r1s]

The high upfront cost of creating a subnet can deter many users, stifling innovation on Bit Tensor by favoring those with deep pockets or strong networks. To address this, we propose a lending mechanism where a pool of token holders funds the initial subnet creation fee, recouping their investment over time through a share of the subnet owner’s emissions, as agreed upon for a set period.

[ppolewicz]

This is happening already (quite a bit!), but it requires a trusted party to hold the coldkey and something like https://github.com/backend-developers-ltd/bittensor-panel?tab=readme-ov-file#bittensor-panel to manage hyperparameters.

I'm not sure how it could be supported natively by the chain (other than multisign / proxy pallet), do you have an idea on how this could look like?