feat: add full pay path

src/application/domain/entities/payment.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+from dataclasses import dataclass
+from datetime import datetime
+from decimal import Decimal
+from src.application.domain.enums import PaymentStatus
+
+
+@dataclass(slots=True)
+class PaymentEntity:
+    user_id: str | None = None
+
+    order_id: str | None = None
+    status: PaymentStatus | None = None
+
+    receipt_cloudekassir_link: str | None = None
+
+    itpay_payment_id: str | None = None
+    transaction_id: str | None = None
+    web3_transaction_hash: str | None = None
+    paid_at: str | None = None
+    expired_date: str | None = None