Fix backend import by adding users router

Author: Uttam Singh

backend/app/routers/__init__.py

@@ -0,0 +1 @@
+from .users import *

backend/app/routers/users.py

@@ -0,0 +1,17 @@
+from fastapi import APIRouter, HTTPException, Depends
+from sqlalchemy.orm import Session
+from app.main import get_db
+
+router = APIRouter(prefix="/users", tags=["Users"])
+
+@router.get("/")
+def list_users(db: Session = Depends(get_db)):
+    # For now, just a placeholder
+    return {"message": "User list (placeholder)"}
+
+@router.post("/login")
+def login(username: str, password: str, db: Session = Depends(get_db)):
+    # Simple fake login logic (replace later)
+    if username == "admin" and password == "admin123":
+        return {"message": "Login successful", "role": "admin"}
+    raise HTTPException(status_code=401, detail="Invalid credentials")