fix payment

managers/storage.py

@@ -341,3 +341,41 @@ class PaymentStorage:
                 if data.get("user_id") == user_id:
                     return {**data, "payment_id": pid}
             return None
+
+
+class PaymentHistoryStorage:
+    """История завершённых платежей (последние N на пользователя)."""
+
+    MAX_PER_USER = 20
+
+    def __init__(self, file_path: str = "data/payment_history.json"):
+        self.file_path = Path(file_path)
+        self.file_path.parent.mkdir(parents=True, exist_ok=True)
+        self._lock = asyncio.Lock()
+
+    def _load_sync(self) -> dict:
+        if not self.file_path.exists():
+            return {}
+        try:
+            with open(self.file_path, "r", encoding="utf-8") as f:
+                return json.load(f)
+        except (json.JSONDecodeError, IOError):
+            return {}
+
+    def _save_sync(self, data: dict) -> None:
+        with open(self.file_path, "w", encoding="utf-8") as f:
+            json.dump(data, f, ensure_ascii=False, indent=2)
+
+    async def add(self, user_id: int, record: dict) -> None:
+        async with self._lock:
+            data = await asyncio.to_thread(self._load_sync)
+            key = str(user_id)
+            history = data.get(key, [])
+            history.append(record)
+            data[key] = history[-self.MAX_PER_USER:]
+            await asyncio.to_thread(self._save_sync, data)
+
+    async def get_user_history(self, user_id: int) -> list:
+        async with self._lock:
+            data = await asyncio.to_thread(self._load_sync)
+            return list(reversed(data.get(str(user_id), [])))