How fast can you fix a Hyvä bug?

Emergency triage starts within 4 hours; most well-defined bugs are fixed in 24-48 hours. Hyvä front-end bugs are usually fast to root-cause because the stack is transparent, no RequireJS bundling to untangle. Once we reproduce it on staging with devtools open, the cause (purged class, dead Alpine component, resolver mismatch) is normally clear within hours.