feat: add software subscription orders

apps/billing/services.py

@@ -2,7 +2,6 @@ from __future__ import annotations
 
 import secrets
 from dataclasses import dataclass
-from datetime import datetime
 from decimal import Decimal, InvalidOperation
 
 from django.db import transaction
@@ -18,6 +17,7 @@ from .models import (
     SignupBonusGrant,
     normalize_resolution,
 )
+from .payment_gateways import PaymentReceipt
 from .pricing import quote_recharge_points
 
 
@@ -127,13 +127,7 @@ class BalanceSnapshot:
     ledger_balance: int
 
 
-@dataclass(frozen=True)
-class RechargePayment:
-    order_no: str
-    pay_method: str
-    amount: Decimal
-    transaction_id: str
-    paid_at: datetime | None = None
+RechargePayment = PaymentReceipt
 
 
 @dataclass(frozen=True)