Add django-waffle for feature flagging: update dependencies and middleware configuration.

uv.lock

@@ -318,6 +318,18 @@ honcho = [
     { name = "honcho" },
 ]
 
+[[package]]
+name = "django-waffle"
+version = "5.0.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "django" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/22/e1/6f533da0d4ac89f427dfd9410e39bfc14ae3a23335ecd549d76be4b2a834/django_waffle-5.0.0.tar.gz", hash = "sha256:62f9d00eedf68dafb82657beab56e601bddedc1ea1ccfef91d83df8658708509", size = 37761, upload-time = "2025-06-12T07:38:54.895Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/7a/d2/6f0d664bd35a3fdd0403655c7c32ec290704923f11541ef356b180cd8fbf/django_waffle-5.0.0-py3-none-any.whl", hash = "sha256:3312851d9d926b76b9e90712355781700a383b82b5bf2b61e1f1be97532c0f3d", size = 48137, upload-time = "2025-06-12T07:38:53.698Z" },
+]
+
 [[package]]
 name = "honcho"
 version = "2.0.0"
@@ -701,6 +713,7 @@ dependencies = [
     { name = "django-htmx" },
     { name = "django-phonenumber-field", extra = ["phonenumbers"] },
     { name = "django-tailwind", extra = ["cookiecutter", "honcho"] },
+    { name = "django-waffle" },
     { name = "pillow" },
     { name = "psycopg2-binary" },
     { name = "python-decouple" },
@@ -723,6 +736,7 @@ requires-dist = [
     { name = "django-htmx", specifier = ">=1.27.0" },
     { name = "django-phonenumber-field", extras = ["phonenumbers"], specifier = ">=8.4.0" },
     { name = "django-tailwind", extras = ["cookiecutter", "honcho"], specifier = ">=4.4.2" },
+    { name = "django-waffle", specifier = ">=5.0.0" },
     { name = "pillow", specifier = ">=12.1.0" },
     { name = "psycopg2-binary", specifier = ">=2.9.11" },
     { name = "python-decouple", specifier = ">=3.8" },