Add complete fiat withdrawal feature that allows users to withdraw
green credits (绿积分) to their bank card, Alipay, or WeChat account
with 1:1 CNY conversion. Key changes:
Backend (wallet-service):
- Update Prisma schema with fiat withdrawal fields (paymentMethod,
bankName, bankCardNo, cardHolderName, alipay*, wechat*, review fields)
- Rewrite withdrawal status enum for fiat flow: PENDING → FROZEN →
REVIEWING → APPROVED → PAYING → COMPLETED (or REJECTED/FAILED)
- Add PaymentMethod enum: BANK_CARD, ALIPAY, WECHAT
- Update WithdrawalOrderAggregate with new fiat withdrawal methods
- Add review/payment workflow methods in WalletApplicationService
- Add internal API endpoints for admin withdrawal management
- Remove blockchain withdrawal event handler (no longer needed)
Frontend (admin-web):
- Add withdrawal review management page at /withdrawals
- Add tabs for reviewing/approved/paying order states
- Add withdrawal service and React Query hooks
- Add types for withdrawal orders and payment methods
- Add sidebar menu item for withdrawal review
Frontend (mobile-app):
- Add withdrawFiat() method to WalletService
- Add PaymentMethod enum with BANK_CARD/ALIPAY/WECHAT
- Create new WithdrawFiatPage for fiat withdrawal input
- Create WithdrawFiatConfirmPage with SMS + password verification
- Add routes for /withdraw/fiat and /withdraw/fiat/confirm
- Keep existing withdraw/usdt (划转) pages unchanged
Note: The existing withdraw_usdt_page.dart is for point-to-point
transfer (划转), which is a different feature from fiat withdrawal.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin
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