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/apps/parks/tests_disabled/README.md

@@ -1,5 +1,39 @@
 # Park Search Tests
 
+## Why These Tests Are Disabled
+
+These tests were disabled because they need updating to work with the new `ParkLocation` model instead of the generic `Location` model. The model refactoring changed how location data is stored and accessed for parks.
+
+## Re-enabling These Tests
+
+To re-enable these tests, follow these steps:
+
+1. **Update model imports** in `test_filters.py` and `test_models.py`:
+   - Replace `from apps.locations.models import Location` with `from apps.parks.models import ParkLocation`
+   - Update any other location-related imports
+
+2. **Update test fixtures** to use `ParkLocation` instead of `Location`:
+   - Change factory classes to create `ParkLocation` instances
+   - Update fixture data to match the new model structure
+
+3. **Update assertions** to match new model structure:
+   - Adjust field references (e.g., `park.location` may now be `park.park_location`)
+   - Update any serializer-based assertions
+
+4. **Move files** back to the active test directory:
+   ```bash
+   mv backend/apps/parks/tests_disabled/*.py backend/apps/parks/tests/
+   ```
+
+5. **Run tests** to verify they pass:
+   ```bash
+   uv run pytest backend/apps/parks/tests/
+   ```
+
+**Tracking**: See TODO(THRILLWIKI-XXX) for tracking issue
+
+---
+
 ## Overview
 
 Test suite for the park search functionality including: