Separate class-creation screens
Replaced the single Add Class screen with two dedicated flows under Group Class and Personal Class in the sidebar. Each form shows only the fields relevant to that class type.

Why it matters
A group class needs capacity, slots and enrolment. A personal class needs one coach and a price. One shared form showed every field to everyone, so admins had to work out which ones to skip. Two forms mean every field on screen is one they need.

