The working model puts the statement, approved historical treatment and current decision side by side. Every displayed transaction and precedent is synthetic.
Inspect suggestions, account and GST treatment. Weak or conflicting history is held. A reviewer can approve, correct or reject; approved-only journal rows appear before the CSV download.
Decisions are session-local and reset on reload. A production workflow would need its own chart of accounts, approved history, GST practice and import template.