chore: updates README

chore: adds @payloadcms/eslint-config

chore: eslint and prettier

chore: restricts payload-admin-bar to admin role

chore: refines create account form and logout view

fix: adds cart to gql auth queries

chore: misc refinements

fix: build errors

chore: migrates auth to gql

feat: renders paywall blocks

feat: scaffolds order view

chore: clears cart on order confirmation

fix: ensures positive cart quantity

fix: cart initialization

feat: checkout workflow