Перенос части логики на бекенд rest api и изменение логики работы бота так же из за бекенда

instences/config.py

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+import os
+
+# Настройки PostgreSQL из переменных окружения
+BASE_URL_FASTAPI = os.getenv("BASE_URL")

instences/model.py

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+from sqlalchemy import Column, String, Numeric, DateTime, Boolean, ForeignKey, Integer
+from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
+from sqlalchemy.orm import declarative_base, relationship, sessionmaker
+from datetime import datetime
+import uuid
+
+Base = declarative_base()
+
+def generate_uuid():
+    return str(uuid.uuid4())
+
+"""Пользователи"""
+class User(Base):
+    __tablename__ = 'users'
+
+    id = Column(String, primary_key=True, default=generate_uuid)
+    telegram_id = Column(Integer, unique=True, nullable=False)
+    username = Column(String)
+    balance = Column(Numeric(10, 2), default=0.0)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    subscriptions = relationship("Subscription", back_populates="user")
+    transactions = relationship("Transaction", back_populates="user")
+    admins = relationship("Administrators", back_populates="user")
+
+"""Подписки"""
+class Subscription(Base):
+    __tablename__ = 'subscriptions'
+
+    id = Column(String, primary_key=True, default=generate_uuid)
+    user_id = Column(String, ForeignKey('users.id'))
+    vpn_server_id = Column(String)
+    plan = Column(String)
+    expiry_date = Column(DateTime)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    user = relationship("User", back_populates="subscriptions")
+
+"""Транзакции"""
+class Transaction(Base):
+    __tablename__ = 'transactions'
+
+    id = Column(String, primary_key=True, default=generate_uuid)
+    user_id = Column(String, ForeignKey('users.id'))
+    amount = Column(Numeric(10, 2))
+    transaction_type = Column(String)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+    user = relationship("User", back_populates="transactions")
+
+"""Администраторы"""
+class Administrators(Base):
+    __tablename__ = 'admins'
+
+    id = Column(String, primary_key=True, default=generate_uuid)
+    user_id = Column(String, ForeignKey('users.id'))
+    
+    user = relationship("User", back_populates="admins")