Post Export

The account's data as a JSON file to save (ExportOut), camelCase like every answer here. A POST, as lib/api.ts asks for it: a per-user file is not something a link, a prefetch or another site's <img> should fetch. The wishlist is read from its tables directly, with each game's slug and title, and every alert that went out for it; the reviews likewise, each with the slug and title of the game it is kept on; the email switches exactly as the account page shows them (_notifications).