Integrated budget constraints

[bedeho]

Background

Funds are minted and spent for lots of different purposes that needs to be constrained

a. funding proposals
b. council member rewards
c. worker rewards
d. working group discretionary spending
e. channel rewards (WIP)

Currently, there the spending constraints around these are not integrated.

Proposal

There is one single top level budget. This budget is updated whenever

1. council member rewards are paid: budfgt reduced
2. working group budgets are changed: budget is reduced if group budget is increaed, otherwise it is increased
3. funding proposals are paid out: budfgt reduced

This budget is increased by a given amount X (storage parameter) every certain blocks Y (hard coded constant) blocks.
Whenever actions 1-3 are attempted, they will fail if it requires more resources than the budget. If a working group budget is reduced, then the budget is actually increased.

The value X can be changed with a proposal, but only within certain hard coded bounds. Notice that when spending occurs within working groups (c,d above), that does nothing, because that is out of a separate budget.

We could also have a cutoff where budget cannot increase beyond a certain level L, but that is not important.