fix: add missing imports and routes for password setup flow

- Added get_user_model import in accounts/views.py
- Fixed User variable scope in password_setup_confirm view
- Added accounts URLs to urls_public.py for password setup on main domain
- Password setup link now accessible from public schema

Technical details:
- get_user_model() needed to be imported from django.contrib.auth
- User model reference moved outside try block to fix UnboundLocalError
- accounts.urls included in public URLconf for /accounts/setup-password/ route

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

myproject/accounts/views.py

@@ -1,5 +1,5 @@
 from django.shortcuts import render, redirect, get_object_or_404
-from django.contrib.auth import login, authenticate, logout
+from django.contrib.auth import login, authenticate, logout, get_user_model
 from django.contrib import messages
 from django.core.mail import send_mail
 from django.conf import settings
@@ -239,8 +239,8 @@ def password_setup_confirm(request, token):
 
     # Переключиться на схему тенанта чтобы найти владельца
     connection.set_tenant(tenant)
+    User = get_user_model()
     try:
-        User = get_user_model()
         owner = User.objects.get(email=registration.owner_email)
     except User.DoesNotExist:
         connection.set_schema_to_public()