The vote resolution fund fees exactly as every pre-1.4 release serialized them inside
the platform state’s fee versions (3 fields). VoteResolutionFundFees gained
moderation_vote_resolution_fund_required_amount in 4.2; embedding the live struct in
FeeVersionFieldsBeforeVersion4 would shift that frozen wire format. Any future field
added to VoteResolutionFundFees must NOT be added here.