feat(payment): implement coffee tip plans and update payment flow

src/data/repositories/payment_repository.ts

@@ -39,6 +39,27 @@ export class PaymentRepository implements IPaymentRepository {
     });
   }
 
+  /** 获取咖啡打赏套餐列表，不写入通用套餐缓存。 */
+  async getTipPlans(): Promise<Result<PaymentPlansResponse>> {
+    return Result.wrap(async () => {
+      const response = await this.api.getTipPlans();
+      return PaymentPlansResponse.from({
+        plans: response.plans.map((plan) => ({
+          ...plan.toJson(),
+          orderType: "tip",
+          vipDays: null,
+          dolAmount: null,
+          creditBalance: 0,
+          originalAmountCents: null,
+          dailyPriceCents: null,
+          isFirstRechargeOffer: false,
+          firstRechargeDiscountPercent: null,
+          promotionType: null,
+        })),
+      });
+    });
+  }
+
   /** 清除本地缓存套餐列表。 */
   async clearCachedPlans(): Promise<Result<void>> {
     return Result.wrap(async () => {