提现档位后端权威化:withdraw-info按source下发tiers,新人档历史一次性+常规档每日限次/选一额度,下单加档位闸防绕过(7-9)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/api/v1/wallet.py

@@ -43,6 +43,7 @@ from app.schemas.welfare import (
     WithdrawRequest,
     WithdrawResultOut,
     WithdrawStatusOut,
+    WithdrawTierOut,
 )
 
 logger = logging.getLogger("shagua.wallet")
@@ -173,8 +174,15 @@ def unbind_wechat(
     return UnbindWechatResultOut(bound=False)
 
 
-@router.get("/withdraw-info", response_model=WithdrawInfoOut, summary="提现额度/绑定状态/免确认开关")
-def withdraw_info(user: CurrentUser, db: DbSession) -> WithdrawInfoOut:
+@router.get("/withdraw-info", response_model=WithdrawInfoOut, summary="提现额度/绑定状态/免确认开关/档位")
+def withdraw_info(
+    user: CurrentUser,
+    db: DbSession,
+    source: str = Query(
+        "coin_cash",
+        description="提现账户:coin_cash(福利页,下发 tiers 档位) / invite_cash(邀请页,tiers 为空走旧逻辑)",
+    ),
+) -> WithdrawInfoOut:
     u = db.get(User, user.id)
     # 顺带同步免确认授权状态(捕获首单确认后已生效的授权 pending→active),让开关展示实时
     auth = crud_wallet.sync_transfer_auth(db, user.id)
@@ -185,6 +193,7 @@ def withdraw_info(user: CurrentUser, db: DbSession) -> WithdrawInfoOut:
         wechat_nickname=u.wechat_nickname if u else None,
         wechat_avatar_url=u.wechat_avatar_url if u else None,
         transfer_auth_enabled=bool(auth and auth.state == "active"),
+        tiers=[WithdrawTierOut(**t) for t in crud_wallet.withdraw_tier_states(db, user.id, source)],
     )
 
 
@@ -218,6 +227,9 @@ def withdraw(req: WithdrawRequest, user: CurrentUser, db: DbSession) -> Withdraw
             status_code=status.HTTP_409_CONFLICT,
             detail="已有提现申请正在审核或打款中,请处理完成后再申请",
         ) from e
+    except crud_wallet.WithdrawTierUnavailableError as e:
+        # 福利页档位闸(7-9):次数满/已选其他额度。正常客户端已按 tiers 预拦,此处兜底防绕过。
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="今日额度已达上限") from e
     except crud_wallet.InsufficientCashError as e:
         raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="现金余额不足") from e