Add daily-stone page showing a different mineral each day

New dailystone app with 207 minerals scraped from Wikipedia.
Each day displays a different mineral with photos, formula,
properties, description, and history. Page theme color matches
the mineral's typical appearance.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kboris/settings.py

@@ -30,6 +30,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'core',
     'backlogger',
+    'dailystone',
 ]
 
 LOGIN_REDIRECT_URL = '/backlogger/'

kboris/urls.py

@@ -7,5 +7,6 @@ urlpatterns = [
     path('accounts/login/', auth_views.LoginView.as_view(template_name='backlogger/login.html'), name='login'),
     path('accounts/logout/', auth_views.LogoutView.as_view(), name='logout'),
     path('backlogger/', include('backlogger.urls')),
+    path('daily-stone/', include('dailystone.urls')),
     path('', include('core.urls')),
 ]