Refactor admin namespace logic into middleware

- Moved the `get_admin_namespace` function from `admin_access.py` to a new `config.middleware` module for better organization and reusability.
- Updated `AdminAccessMiddleware` to utilize the centralized `get_admin_namespace` function, enhancing code maintainability.
- Improved documentation for the `get_admin_namespace` function to clarify its usage and purpose.

apps/account/middleware/admin_access.py

@@ -5,20 +5,7 @@ from django.shortcuts import redirect
 from django.urls import reverse
 from django.contrib import messages
 from django.utils.translation import gettext_lazy as _
-
-
-def get_admin_namespace(request):
-    """
-    Determine the admin namespace based on the request domain.
-    Returns the appropriate admin namespace for use in reverse() calls.
-    """
-    host = request.get_host()
-    
-    # Check if the request is from Dovoodi domain
-    if 'dovodi' in host or 'dovoodi' in host:
-        return 'dovoodi_admin'
-    else:
-        return 'imam_javad_admin'
+from config.middleware import get_admin_namespace
 
 
 class AdminAccessMiddleware:

config/middleware/__init__.py

@@ -0,0 +1,22 @@
+"""
+Middleware utilities and helpers
+"""
+
+
+def get_admin_namespace(request):
+    """
+    Determine the admin namespace based on the request domain.
+    Returns the appropriate admin namespace for use in reverse() calls.
+    
+    Usage:
+        from config.middleware import get_admin_namespace
+        admin_ns = get_admin_namespace(request)
+        url = reverse(f'{admin_ns}:model_changelist')
+    """
+    host = request.get_host()
+    
+    # Check if the request is from Dovoodi domain
+    if 'dovodi' in host or 'dovoodi' in host:
+        return 'dovoodi_admin'
+    else:
+        return 'imam_javad_admin'