chore: change bridge-tax to be per token

[maharifu]

Related Github tickets

• Closes https://github.com/VolumeFi/paloma/issues/1815

Background

We want bridge taxes to be per token, instead of global.

• Change bridge tax setter and getter to include token
• Change bridge tax proposal to include token
• Change query RPC to return all bridge taxes, same as bridge transfer limits
• Update genesis
• Removed excluded_token setting as it doesn't make sense now

Testing completed

• [x] test coverage exists or has been added/updated
• [x] tested in a private testnet

Breaking changes

• [x] I have checked my code for breaking changes
• [x] If there are breaking changes, there is a supporting migration.

[maharifu]

Excellent work.

Blocking this until we're clear on what happens to live data. We have tax data in the keeper already: https://explorer.kjnodes.com/paloma/gov/57

So that means we'll need an upgrade path to ensure the upgrade from 1.15.1 to 1.15.2 won't crash due to type differences.

My suggestion would be to simply clear the store of tax data.

Won't the store be cleared with the rename of gravity to skyway in the 1.15.2 upgrade?

I tested the upgrade in local testnet and it worked fine afterward. I'll re-do the test to make sure I have bridge tax data before the upgrade.

[maharifu]

Of course the store will be cleared anyway. LGTM.

Thanks for checking.

I was just testing locally. The store works fine, but we have an issue with the proposal. Since the proposal changed, we can't decode the previous one anymore.

# palomad q gov proposals
Error: rpc error: code = Unknown desc = runtime error: invalid memory address or nil pointer dereference: panic

I'll look into it.