feat: Delete POST endpoint signup

endpoints/signup.post.py

@@ -1,33 +0,0 @@
-from fastapi import APIRouter, HTTPException
-from core.database import fake_users_db
-import uuid
-
-router = APIRouter()
-
-@router.post("/signup")
-async def signup_demo(
-    username: str = "new_user",
-    email: str = "user@example.com",
-    password: str = "securepassword123"
-):
-    """Demo signup endpoint"""
-    if username in fake_users_db:
-        raise HTTPException(status_code=400, detail="Username already exists")
-    
-    user_id = str(uuid.uuid4())
-    fake_users_db[username] = {
-        "id": user_id,
-        "email": email,
-        "password": password,
-        "disabled": False
-    }
-    
-    return {
-        "message": "User created successfully",
-        "user_id": user_id,
-        "username": username,
-        "next_steps": [
-            "Verify your email (demo)",
-            "Complete profile setup"
-        ]
-    }