I found this in "C:users(username)AppDataLocalArcanaHeatnColdStoriesUser DataDefaultWeb Data.file

CREATE TABLE credit_cards ( guid VARCHAR PRIMARY KEY, name_on_card VARCHAR, expiration_month INTEGER, expiration_year INTEGER, card_number_encrypted BLOB, date_modified INTEGER NOT NULL DEFAULT 0, origin VARCHAR DEFAULT '', use_count INTEGER NOT NULL DEFAULT 0, use_date INTEGER NOT NULL DEFAULT 0, billing_address_id VARCHAR)

Developer response from Arcana: Heat and Cold. Season 1
I confirmed what the files are. Construct's desktop exports use NW.js, which is based on the Chromium browser engine. So these are the files used by Chromium to work properly.