Add comprehensive tests for Parks API and models

- Implemented extensive test cases for the Parks API, covering endpoints for listing, retrieving, creating, updating, and deleting parks.
- Added tests for filtering, searching, and ordering parks in the API.
- Created tests for error handling in the API, including malformed JSON and unsupported methods.
- Developed model tests for Park, ParkArea, Company, and ParkReview models, ensuring validation and constraints are enforced.
- Introduced utility mixins for API and model testing to streamline assertions and enhance test readability.
- Included integration tests to validate complete workflows involving park creation, retrieval, updating, and deletion.

.env.example

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+# [AWS-SECRET-REMOVED]===========================
+# ThrillWiki Environment Configuration
+# [AWS-SECRET-REMOVED]===========================
+# Copy this file to ***REMOVED*** and fill in your actual values
+
+# [AWS-SECRET-REMOVED]===========================
+# Core Django Settings
+# [AWS-SECRET-REMOVED]===========================
+SECRET_KEY=your-secret-key-here-generate-a-new-one
+DEBUG=True
+ALLOWED_HOSTS=localhost,127.0.0.1,beta.thrillwiki.com
+CSRF_TRUSTED_ORIGINS=https://beta.thrillwiki.com,http://localhost:8000
+
+# [AWS-SECRET-REMOVED]===========================
+# Database Configuration
+# [AWS-SECRET-REMOVED]===========================
+# PostgreSQL with PostGIS for production/development
+DATABASE_URL=postgis://username:password@localhost:5432/thrillwiki
+
+# SQLite for quick local development (uncomment to use)
+# DATABASE_URL=spatialite:///path/to/your/db.sqlite3
+
+# [AWS-SECRET-REMOVED]===========================
+# Cache Configuration
+# [AWS-SECRET-REMOVED]===========================
+# Local memory cache for development
+CACHE_URL=locmem://
+
+# Redis for production (uncomment and configure for production)
+# CACHE_URL=redis://localhost:6379/1
+# REDIS_URL=redis://localhost:6379/0
+
+CACHE_MIDDLEWARE_SECONDS=300
+CACHE_MIDDLEWARE_KEY_PREFIX=thrillwiki
+
+# [AWS-SECRET-REMOVED]===========================
+# Email Configuration
+# [AWS-SECRET-REMOVED]===========================
+EMAIL_BACKEND=django.core.mail.backends.console.EmailBackend
+SERVER_EMAIL=django_webmaster@thrillwiki.com
+
+# ForwardEmail configuration (uncomment to use)
+# EMAIL_BACKEND=email_service.backends.ForwardEmailBackend
+# FORWARD_EMAIL_BASE_URL=https://api.forwardemail.net
+
+# SMTP configuration (uncomment to use)
+# EMAIL_URL=smtp://username:password@smtp.example.com:587
+
+# [AWS-SECRET-REMOVED]===========================
+# Security Settings
+# [AWS-SECRET-REMOVED]===========================
+# Cloudflare Turnstile (get keys from Cloudflare dashboard)
+TURNSTILE_SITE_KEY=your-turnstile-site-key
+TURNSTILE_SECRET_KEY=your-turnstile-secret-key
+TURNSTILE_VERIFY_URL=https://challenges.cloudflare.com/turnstile/v0/siteverify
+
+# Security headers (set to True for production)
+SECURE_SSL_REDIRECT=False
+SESSION_COOKIE_SECURE=False
+CSRF_COOKIE_SECURE=False
+SECURE_HSTS_SECONDS=31536000
+SECURE_HSTS_INCLUDE_SUBDOMAINS=True
+
+# [AWS-SECRET-REMOVED]===========================
+# GeoDjango Settings (macOS with Homebrew)
+# [AWS-SECRET-REMOVED]===========================
+GDAL_LIBRARY_PATH=/opt/homebrew/lib/libgdal.dylib
+GEOS_LIBRARY_PATH=/opt/homebrew/lib/libgeos_c.dylib
+
+# Linux alternatives (uncomment if on Linux)
+# GDAL_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/libgdal.so
+# GEOS_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/libgeos_c.so
+
+# [AWS-SECRET-REMOVED]===========================
+# Optional: Third-party Integrations
+# [AWS-SECRET-REMOVED]===========================
+# Sentry for error tracking (uncomment to use)
+# SENTRY_DSN=https://your-sentry-dsn-here
+
+# Google Analytics (uncomment to use)
+# GOOGLE_ANALYTICS_ID=GA-XXXXXXXXX
+
+# [AWS-SECRET-REMOVED]===========================
+# Development/Debug Settings
+# [AWS-SECRET-REMOVED]===========================
+# Set to comma-separated list for debug toolbar
+# INTERNAL_IPS=127.0.0.1,::1
+
+# Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
+LOG_LEVEL=INFO