feat: Update endpoint /signup

app/api/endpoints/signup.py

@@ -1,13 +1,13 @@
-from fastapi import APIRouter, HTTPException
-from pydantic import BaseModel
-
-router = APIRouter()
-
-class UserRegistration(BaseModel):
-    username: str
-    password: str
-    email: str
-
-@router.post("/signup")
-async def signup(user: UserRegistration):
-    return {"message": "User registered successfully", "user": user.username}
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+
+router = APIRouter()
+
+class UserRegistration(BaseModel):
+    username: str
+    password: str
+    email: str
+
+@router.post("/signup")
+async def signup(user: UserRegistration):
+    return {"message": "User registered successfully",