Add POST endpoint for /signup

endpoints/signup.post.py

@@ -3,8 +3,8 @@
 from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.orm import Session
 from core.database import get_db
-from models.user import User
-from schemas.user import UserSchema, UserCreate
+from core.models.user import User
+from core.schemas.user import UserSchema, UserCreate
 
 router = APIRouter()
 
@@ -13,8 +13,8 @@ async def signup_user(
     user_data: UserCreate,
     db: Session = Depends(get_db)
 ):
-    db_user = db.query(User).filter(User.email == user_data.email).first()
-    if db_user:
+    existing_user = db.query(User).filter(User.email == user_data.email).first()
+    if existing_user:
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail="Email already registered"