refactor: renombrar proyecto principal api_config → api_hub_dispatcher

- Renombrar carpeta app/api_config/ → app/api_hub_dispatcher/
- Actualizar DJANGO_SETTINGS_MODULE en asgi.py, wsgi.py, manage.py
- Actualizar ROOT_URLCONF y WSGI_APPLICATION en settings.py

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/api_config/urls.py

@@ -1,10 +0,0 @@
-from django.urls import path, include
-from backend_admin import views as admin_views
-
-urlpatterns = [
-    path('admin/', include('backend_admin.urls')),
-    path('api/general/', include('general.urls')),
-    path('api/promociones/', include('promociones.urls')),
-    path('api/automatizados/', include('automatizados.urls')),
-    path('api/token/', admin_views.api_token, name='token_obtain_pair'),
-]