Cache integration API reads and refresh them on a schedule

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

app/Providers/AppServiceProvider.php

@@ -2,6 +2,7 @@
 
 namespace App\Providers;
 
+use App\Services\IntegrationCache;
 use Illuminate\Support\ServiceProvider;
 
 class AppServiceProvider extends ServiceProvider
@@ -11,7 +12,7 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register(): void
     {
-        //
+        $this->app->singleton(IntegrationCache::class);
     }
 
     /**