feat: Delete POST endpoint login

endpoints/login.post.py

@@ -1,25 +0,0 @@
-from fastapi import APIRouter, Depends, HTTPException
-from core.auth import get_current_user_dummy
-from core.database import fake_users_db
-
-router = APIRouter()
-
-@router.post("/login")
-async def login_demo(
-    username: str = "demo",
-    password: str = "password"
-):
-    """Demo login endpoint"""
-    user = fake_users_db.get(username)
-    if not user or user["password"] != password:
-        raise HTTPException(status_code=400, detail="Invalid credentials")
-    
-    return {
-        "message": "Login successful (demo)",
-        "user": username,
-        "token": "dummy_jwt_token_123",
-        "features": {
-            "rate_limit": 100,
-            "expires_in": 3600
-        }
-    }