Move desktop and e2e into examples/ directory

- desktop/ → examples/django-react-desktop-app/
- e2e/ → examples/django-react-site/
- example/ → examples/django-react-site/backend/
- Update Dockerfile.test, Makefile, playwright config, and
  django.config.mjs path references

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

examples/django-react-desktop-app/backend/settings.py

@@ -0,0 +1,49 @@
+"""
+Django settings for the mizan desktop integration test app.
+
+Runs entirely local: SQLite database, in-memory channel layer,
+no external services required.
+"""
+
+import os
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+SECRET_KEY = "desktop-app-local-only-secret-key"
+
+DEBUG = True
+
+ALLOWED_HOSTS = ["127.0.0.1", "localhost"]
+
+INSTALLED_APPS = [
+    "django.contrib.contenttypes",
+    "backend",
+]
+
+MIDDLEWARE = []
+
+ROOT_URLCONF = "backend.urls"
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.path.join(BASE_DIR, "app.db"),
+    }
+}
+
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+ASGI_APPLICATION = "backend.asgi.application"
+
+CHANNEL_LAYERS = {
+    "default": {
+        "BACKEND": "channels.layers.InMemoryChannelLayer",
+    },
+}
+
+# Serve the built frontend
+STATIC_URL = "/static/"
+STATICFILES_DIRS = [os.path.join(BASE_DIR, "frontend", "dist")]
+
+# No auth, no CSRF — local desktop app
+CSRF_COOKIE_HTTPONLY = False