fix(events): point Messaging settings at suite defaults, not API keys

Mirror Care: suite platform keys count as ready for attendee email/SMS;
Account Messaging is primary, product Bird/SMS keys are advanced.
SmsService now prefers channel=suite before customer API keys.

app/Services/Billing/SmsService.php

@@ -5,6 +5,10 @@ namespace App\Services\Billing;
 use App\Services\Messaging\CustomerSmsClient;
 use App\Services\Messaging\MessagingCredentialsService;
 
+/**
+ * Attendee SMS: prefer platform suite messaging (zero-config), fall back to
+ * product SMS API keys when suite is unavailable.
+ */
 class SmsService
 {
     private ?string $lastError = null;
@@ -12,6 +16,7 @@ class SmsService
     public function __construct(
         private readonly CustomerSmsClient $customer,
         private readonly MessagingCredentialsService $credentials,
+        private readonly PlatformSmsClient $platformSms,
     ) {}
 
     public function lastError(): ?string
@@ -19,6 +24,15 @@ class SmsService
         return $this->lastError;
     }
 
+    public function isConfiguredForOwner(string $ownerPublicId): bool
+    {
+        if ($this->platformSms->isConfigured()) {
+            return true;
+        }
+
+        return $this->credentials->forOwner($ownerPublicId)->hasValidSms();
+    }
+
     public function send(string $ownerPublicId, string $to, string $message): bool
     {
         $this->lastError = null;
@@ -37,15 +51,43 @@ class SmsService
         }
 
         $credential = $this->credentials->forOwner($ownerPublicId);
+
+        if ($this->platformSms->isConfigured()) {
+            $sender = $credential->sms_sender_id ?: null;
+            $sent = $this->platformSms->send(
+                $ownerPublicId,
+                $phone,
+                $message,
+                $sender ? (string) $sender : null,
+            );
+            if ($sent) {
+                return true;
+            }
+
+            $suiteError = $this->platformSms->lastError();
+            if ($this->tryCustomerSms($credential, $phone, $message)) {
+                return true;
+            }
+
+            $this->lastError = $suiteError ?: $this->lastError;
+
+            return false;
+        }
+
+        return $this->tryCustomerSms($credential, $phone, $message);
+    }
+
+    private function tryCustomerSms(object $credential, string $phone, string $message): bool
+    {
         if (! $credential->hasValidSms()) {
-            $this->lastError = 'Connect Ladill SMS in Integrations before sending attendee SMS.';
+            $this->lastError = 'SMS is not available (platform SMS key missing and no product SMS credentials).';
 
             return false;
         }
 
         $apiKey = $credential->smsApiKey();
         if (! $apiKey) {
-            $this->lastError = 'SMS credentials could not be decrypted. Reconnect SMS in Integrations.';
+            $this->lastError = 'SMS credentials could not be decrypted. Reconnect SMS under Advanced keys.';
 
             return false;
         }