feat(billing): 计费商业化重构(积分制)+ 团队差异化调价

统一计价引擎 apps/billing/pricing.py:1积分=¥0.1,平台成本(¥)与用户价(积分)双记账,
视频按火山真实 usage.total_tokens 结算(true-up,终结¥1/段倒贴)+ 首发×1.5毛利系数。
Team.price_multiplier 差异化调价(jimeng同款):挂牌价×系数两步HALF_UP取整,视频类
按下单时的价格/汇率快照结算(中途改配不影响在途任务)。

BillingConfig 单例(汇率/毛利系数/预留buffer,admin可调即刻生效)。存量数据 ×10 rescale
迁移(RunPython+atomic,MySQL 迁移不可中断重跑)。开户赠送归零(DEFAULT_TRIAL_CREDITS=0,
商业决策)。audit_billing 加 I9(卖亏审计)。271 条测试 + tsc/build 全绿。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

core/frontend/src/App.tsx

@@ -850,7 +850,7 @@ export function App() {
             billing={billing}
             projects={projects}
             team={currentTeam}
-            onRecharge={(amount, bonus) => action(() => api.recharge({ amount, bonus }), "充值成功")}
+            onRecharge={(amount, bonusPoints) => action(() => api.recharge({ amount, bonus_points: bonusPoints }), "充值成功")}
           />
         );
       case "team":
@@ -864,7 +864,7 @@ export function App() {
             onUpdateMember={(id, payload) => action(() => api.updateTeamMember(id, payload), "成员已更新")}
             onRemoveMember={(id) => action(() => api.removeTeamMember(id), "成员已移除")}
             onResetPassword={(id, password) => action(() => api.resetMemberPassword(id, password), "密码已重置")}
-            onRecharge={(amount, bonus) => action(() => api.recharge({ amount, bonus }), "充值成功")}
+            onRecharge={(amount, bonusPoints) => action(() => api.recharge({ amount, bonus_points: bonusPoints }), "充值成功")}
           />
         );
       case "messages":