Add GET endpoint for /new

endpoints/new.get.py

@@ -0,0 +1,31 @@
+# Entity: User
+
+```python
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+from typing import List
+from core.database import get_db
+from models.user import User
+from schemas.user import UserSchema, UserCreate
+from helpers.user_helpers import create_user, get_user_by_email
+
+router = APIRouter()
+
+@router.get("/new", status_code=201, response_model=UserSchema)
+async def signup_user(
+    email: str,
+    password: str,
+    username: str,
+    db: Session = Depends(get_db)
+):
+    """Create a new user account"""
+    existing_user = get_user_by_email(db, email)
+    if existing_user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Email already registered"
+        )
+    
+    user = create_user(db, email=email, password=password, username=username)
+    return user
+```