refactor(backend): refactor project, add database migrations support

backend/app/app.py

@@ -1,9 +1,10 @@
 from fastapi import Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
-from .db import User, create_db_and_tables
-from .schemas import UserCreate, UserRead, UserUpdate
-from .users import auth_backend, current_active_verified_user, fastapi_users
+from app.models.user import User
+
+from app.schemas.user import UserCreate, UserRead, UserUpdate
+from app.services.user_service import auth_backend, current_active_verified_user, fastapi_users
 
 app = FastAPI()
 
@@ -53,9 +54,3 @@ async def root():
 @app.get("/authenticated-route")
 async def authenticated_route(user: User = Depends(current_active_verified_user)):
     return {"message": f"Hello {user.email}!"}
-
-
-@app.on_event("startup")
-async def on_startup():
-    # Not needed if you setup a migration system like Alembic
-    await create_db_and_tables()