Add secret management guide, client-side performance monitoring, and search accessibility enhancements

- Introduced a comprehensive Secret Management Guide detailing best practices, secret classification, development setup, production management, rotation procedures, and emergency protocols.
- Implemented a client-side performance monitoring script to track various metrics including page load performance, paint metrics, layout shifts, and memory usage.
- Enhanced search accessibility with keyboard navigation support for search results, ensuring compliance with WCAG standards and improving user experience.

backend/tests/test_runner.py

@@ -2,13 +2,18 @@
 import os
 import sys
 import django
-from django.conf import settings
 from django.test.runner import DiscoverRunner
 import coverage  # type: ignore
 
 
 def setup_django():
-    """Set up Django test environment"""
+    """Set up Django test environment.
+
+    Uses config.django.test settings which configures:
+    - PostGIS database for GeoDjango support
+    - In-memory cache for test isolation
+    - Fast password hashing for speed
+    """
     # Add the project root directory to Python path
     project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
     sys.path.insert(0, project_root)
@@ -16,32 +21,6 @@ def setup_django():
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "config.django.test")
     django.setup()
 
-    # Use PostGIS for GeoDjango support
-    settings.DATABASES = {
-        "default": {
-            "ENGINE": "django.contrib.gis.db.backends.postgis",
-            "NAME": "test_thrillwiki",
-            "USER": "postgres",
-            "PASSWORD": "postgres",
-            "HOST": "localhost",
-            "PORT": "5432",
-            "TEST": {
-                "NAME": "test_thrillwiki",
-            },
-        }
-    }
-    settings.DEBUG = False
-
-    # Skip problematic migrations during tests
-    settings.MIGRATION_MODULES = {
-        "parks": None,
-        "operators": None,
-        "property_owners": None,
-        "location": None,
-        "rides": None,
-        "reviews": None,
-    }
-
 
 class CustomTestRunner(DiscoverRunner):
     def __init__(self, *args, **kwargs):