Initial commit: VPN Control Panel

- FastAPI REST API with JWT auth
- aiogram 3 Telegram bot with admin middleware
- APScheduler daily tasks (expiry, reminders, revoke, sync)
- SQLAlchemy 2 async ORM with Alembic migrations
- Jinja2 admin panel (Dashboard, Users, Payments, Servers, Tariffs)
- VPN provider abstraction with MockProvider
- Stats service with revenue/subscription analytics
- Docker Compose (PostgreSQL + Redis + app)
- Healthcheck endpoint

app/models/admin.py

@@ -0,0 +1,34 @@
+import enum
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, Enum, Integer, String, Text, BigInteger, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.database import Base
+
+
+class AdminRole(str, enum.Enum):
+    SUPERADMIN = "superadmin"
+    MODERATOR = "moderator"
+
+
+class Admin(Base):
+    __tablename__ = "admins"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True)
+    telegram_id: Mapped[int] = mapped_column(BigInteger, unique=True, nullable=False)
+    username: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    role: Mapped[AdminRole] = mapped_column(
+        Enum(AdminRole, name="admin_role"), default=AdminRole.MODERATOR
+    )
+    permissions: Mapped[str | None] = mapped_column(Text, nullable=True)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now()
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+    def __repr__(self) -> str:
+        return f"<Admin id={self.id} tg={self.telegram_id} role={self.role.value}>"