Backend:
- Add personalOrders and teamOrders to adoption stats
- Return order count alongside tree count in user list API
Frontend:
- Add personalAdoptionOrders and teamAdoptionOrders to UserOverview type
- Display format: "树数量(订单数)" e.g. "6(3单)"
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>