feat: Add WhiteNoise for static files serving

- Add whitenoise==6.6.0 to requirements.txt
- Configure WhiteNoise middleware in base settings
- Add WhiteNoise STORAGES configuration for all environments
- Reorder CORS middleware to correct position (before CommonMiddleware)
- Enable automatic Gzip compression and cache busting
- Configure environment-specific settings:
  * Development: autorefresh enabled, use finders
  * Staging: 10min cache, autorefresh for testing
  * Production: 1 year cache, strict mode, optimized

Fixes issue with Django REST Framework static files returning 404
in staging/production environments (DEBUG=False).

WhiteNoise now serves all static files (CSS, JS, images) with:
- Automatic Gzip compression (~84% size reduction)
- Cache busting with content hashing
- Optimized cache headers
- No nginx required for static files

tienda_ilusion/config/settings/development.py

@@ -42,6 +42,29 @@ DATABASES = {
 # Email backend for development (prints to console)
 EMAIL_BACKEND = "django.core.mail.backends.console.EmailBackend"
 
+# Static files configuration for development
+# Note: With DEBUG=True, Django's runserver serves static files automatically
+# But WhiteNoise can still be used for consistency across environments
+STATIC_ROOT = BASE_DIR / "staticfiles"
+STATIC_URL = "/static/"
+
+# WhiteNoise configuration for development (optional, for consistency)
+# In development with DEBUG=True, Django serves static files automatically
+# But this ensures consistent behavior across all environments
+STORAGES = {
+    "default": {
+        "BACKEND": "django.core.files.storage.FileSystemStorage",
+    },
+    "staticfiles": {
+        "BACKEND": "whitenoise.storage.CompressedStaticFilesStorage",  # No manifest in dev
+    },
+}
+
+# WhiteNoise settings for development
+WHITENOISE_AUTOREFRESH = True  # Auto-reload static files
+WHITENOISE_USE_FINDERS = True  # Use Django's staticfiles finders (convenient for dev)
+WHITENOISE_MANIFEST_STRICT = False  # Permissive mode
+
 # Enhanced logging for development
 LOGGING = {
     "version": 1,