HANDLE TOKEN EXCEPTIONS

Summary from the TLDR Design newsletter

Hardcoded values become valid token exceptions only with a reason, a defined scope, an owner, and an end date. Without a date, they're permanent technical debt. Valid cases include time-boxed campaigns, tokens awaiting release, and urgent accessibility fixes. A register tracks each exception's location, value, reason, approver, and expiration date, and when the date arrives, it's promoted to a token or removed.