fix + vershions configs

API/routers/user.py

@@ -29,7 +29,10 @@ async def signup(body: UserCreate, db: AsyncSession = Depends(get_db)):
             detail="Promo-code is not valid"
         )
     existing = await db.execute(
-        select(User).where(User.email == body.email)
+        select(User).where(
+            User.email == body.email,
+            User.deleted_at.is_(None)
+        )
     )
     if existing.scalar_one_or_none():
         raise HTTPException(