Introduce AKSRT_Balance (user_meta aksrt_balance + balance_log) for
Zibll-like pay_balance wallet. User center assets panel shows wallet
and points; balance gateway/card-pass/refunds credit cash when enabled.
Point OrderDetailDrawer at /shop/shipping and /shop/after-sale with
carrier/tracking_no and amount payloads matching backend contracts.
Map order detail context.buyer/address/shipping/after_sale for the
drawer, and include after-sale reason in summary items.