DetermineProposalOutcome determines the outcome of the proposal votes.

GetProposalOutcome returns the current outcome of a proposal whose voters are only network stakeholders; If the proposal requires a proposer max join height, only stakeholders whose tickets became mature before the proposer max join height.

MaybeApplyProposal attempts to apply the action of a proposal.

MaybeProcessProposalFee determines and execute proposal fee refund or distribution.