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/__init__.py

@@ -0,0 +1,19 @@
+from app.models.user import User
+from app.models.server import Server, ServerProtocol
+from app.models.tariff import Tariff
+from app.models.payment import Payment, PaymentStatus
+from app.models.notification import Notification, NotificationType
+from app.models.admin import Admin, AdminRole
+
+__all__ = [
+    "User",
+    "Server",
+    "ServerProtocol",
+    "Tariff",
+    "Payment",
+    "PaymentStatus",
+    "Notification",
+    "NotificationType",
+    "Admin",
+    "AdminRole",
+]