fix: isolate public subscribe from integration job failures

Queue Weeztix/Mailwizz after the HTTP response and catch dispatch errors.
Jobs log Mailwizz/Weeztix API failures without rethrowing so sync driver
and terminating callbacks do not surface 500s after a successful create.

Add JS fallback for non-JSON error responses, deployment note, and a
regression test for failing Mailwizz under QUEUE_CONNECTION=sync.

Made-with: Cursor

tests/Feature/SyncSubscriberToMailwizzTest.php

@@ -19,6 +19,27 @@ class SyncSubscriberToMailwizzTest extends TestCase
 {
     use RefreshDatabase;
 
+    public function test_subscribe_returns_ok_when_mailwizz_api_fails_under_sync_queue(): void
+    {
+        Http::fake([
+            '*' => Http::response(['status' => 'error', 'message' => 'service unavailable'], 503),
+        ]);
+
+        $page = $this->makePageWithMailwizz();
+
+        $this->postJson(route('public.subscribe', ['publicPage' => $page->slug]), [
+            'first_name' => 'Broken',
+            'last_name' => 'Mailwizz',
+            'email' => 'broken-mailwizz@example.com',
+        ])
+            ->assertOk()
+            ->assertJson(['success' => true]);
+
+        $subscriber = Subscriber::query()->where('email', 'broken-mailwizz@example.com')->first();
+        $this->assertNotNull($subscriber);
+        $this->assertFalse($subscriber->synced_to_mailwizz);
+    }
+
     public function test_subscribe_with_mailwizz_config_runs_sync_create_path_and_marks_synced(): void
     {
         Http::fake(function (Request $request) {