themes how part of site settings

Modules/Settings/Services/SettingsRepository.php

@@ -14,17 +14,21 @@ final class SettingsRepository
             return $default;
         }
 
+        /** @var array{value: ?string, type: string}|null $setting */
         $setting = Cache::rememberForever(
-            "settings.$group.$key",
-            fn (): ?Setting => Setting::query()
+            "settings.value.v2.$group.$key",
+            fn (): ?array => Setting::query()
                 ->where([
                     'group' => $group,
                     'key' => $key,
                 ])
-                ->first()
+                ->first(['value', 'type'])
+                ?->only(['value', 'type'])
         );
 
-        return $setting ? $this->decode($setting->value, $setting->type) : $default;
+        return $setting !== null
+            ? $this->decode($setting['value'], $setting['type'])
+            : $default;
     }
 
     /** @return array<string, mixed> */
@@ -70,6 +74,8 @@ final class SettingsRepository
             'registration_label' => 'Get started',
             'default_meta_title' => '',
             'default_meta_description' => '',
+            'backend_theme' => config('stylist.default_backend_theme', 'admin'),
+            'frontend_theme' => config('stylist.default_frontend_theme', 'saasland'),
         ];
 
         return array_replace($defaults, $this->group('site'));
@@ -86,7 +92,9 @@ final class SettingsRepository
             ]
         );
 
+        // Remove both the legacy model cache and the scalar-only cache.
         Cache::forget("settings.$group.$key");
+        Cache::forget("settings.value.v2.$group.$key");
         Cache::forget("settings.group.$group");
 
         return $setting;