Add join token TTL policy and Live Show link sharing

tests/Feature/Tenant/EventJoinTokenTtlPolicyTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Tests\Feature\Tenant;
+
+use App\Models\Event;
+use Carbon\Carbon;
+
+class EventJoinTokenTtlPolicyTest extends TenantTestCase
+{
+    public function test_join_token_defaults_to_policy_ttl_when_expiry_missing(): void
+    {
+        Carbon::setTestNow(Carbon::parse('2026-01-05 12:00:00'));
+
+        $event = Event::factory()
+            ->for($this->tenant)
+            ->create([
+                'name' => ['de' => 'Token TTL Test', 'en' => 'Token TTL Test'],
+                'slug' => 'token-ttl-test',
+            ]);
+
+        $response = $this->authenticatedRequest('POST', "/api/v1/tenant/events/{$event->slug}/join-tokens");
+
+        $response->assertCreated();
+
+        $expectedExpiry = now()->addDays(7)->toIso8601String();
+
+        $this->assertSame($expectedExpiry, $response->json('data.expires_at'));
+
+        Carbon::setTestNow();
+    }
+}