fix: apply change requests from PR review, resolve rebase conflicts, …

…style fixes

* change `performAction.js` name to `submitBid.js`
* remove `Math.round` from `scale6`
* update indexing of bids and other constants in `config` object to improve readability (`auction.test.js`)
* move helper functions in `auction.test.js` to `test-lib/auction-lib.js`
* move `lib/vaults.mts` to `test-lib/vaults.mts`  and remove empty `lib` directory
* let it be known `sync-tools.js` is a stand-in code for Agoric#10171

Refs: Agoric/BytePitchPartnerEng#8

fix: style fixes

a3p-integration/proposals/n:upgrade-next/use.sh

@@ -8,3 +8,4 @@ node ./addGov4
 
 ./verifyPushedPrice.js 'ATOM' 12.01
 ./verifyPushedPrice.js 'stATOM' 12.01
+./submitBid.js