Add freemium plans, wallet-billed host notifications, and Pro upgrades.

Host alerts use email/phone on the host record without requiring a Ladill
account link; SMS and over-quota emails debit the org wallet at platform rates.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Frontdesk/IntegrationController.php

@@ -17,6 +17,15 @@ class IntegrationController extends Controller
     {
         $this->authorizeAbility($request, 'settings.view');
         $organization = $this->organization($request);
+        $plans = app(\App\Services\Frontdesk\PlanService::class);
+
+        if (! $plans->hasFeature($organization, 'integrations')) {
+            return view('frontdesk.integrations.upgrade', [
+                'organization' => $organization,
+                'proPriceMinor' => $plans->proPriceMinor(),
+            ]);
+        }
+
         $canManage = app(\App\Services\Frontdesk\FrontdeskPermissions::class)
             ->isAdmin($this->member($request));
 
@@ -39,6 +48,10 @@ class IntegrationController extends Controller
         $this->authorizeAbility($request, 'settings.manage');
         $organization = $this->organization($request);
 
+        if (! app(\App\Services\Frontdesk\PlanService::class)->hasFeature($organization, 'integrations')) {
+            return back()->with('error', 'Webhooks and calendar feeds require Frontdesk Pro.');
+        }
+
         $validated = $request->validate([
             'webhook_url' => ['nullable', 'url', 'max:500'],
             'webhook_secret' => ['nullable', 'string', 'max:128'],