- Move cari-master, master-sheet-form, and hapus-master-button into
app/(dashboard)/master/_components since only master pages use them
- Merge MasterSheetForm and MasterMultiFieldSheetForm into one form that
accepts multiple fields; forms needing select/textarea stay custom
- Drop the initial prop and hardcode { ok: false } as the action state seed
- Blur number inputs on wheel to prevent accidental value changes
- Update CLAUDE.md to describe the new layout and rules