feat(admin): Weeztix setup wizard, integration status badges

- Summary view when Weeztix is configured; edits only via 3-step wizard
- Step 1: reuse or replace OAuth client ID/secret; callback URL shown
- Step 2: OAuth connect (resume wizard after callback when started from wizard)
- Step 3: coupon, prefix, usage; finishing exits wizard
- PreregistrationPage: mailwizz/weeztix integration status helpers
- Pages index: Integrations column with MW/WZ badges; edit page: status cards

Made-with: Cursor

app/Models/PreregistrationPage.php

@@ -204,4 +204,56 @@ class PreregistrationPage extends Model
 
         return 'active';
     }
+
+    /**
+     * Mailwizz setup depth for admin UI (API key + list + email field = ready to sync).
+     *
+     * @return 'none'|'partial'|'ready'
+     */
+    public function mailwizzIntegrationStatus(): string
+    {
+        $c = $this->mailwizzConfig;
+        if ($c === null) {
+            return 'none';
+        }
+
+        $key = $c->api_key;
+        if (! is_string($key) || $key === '') {
+            return 'partial';
+        }
+
+        if (! is_string($c->list_uid) || $c->list_uid === '' || ! is_string($c->field_email) || $c->field_email === '') {
+            return 'partial';
+        }
+
+        return 'ready';
+    }
+
+    /**
+     * Weeztix setup depth for admin UI.
+     *
+     * @return 'none'|'credentials'|'connected'|'ready'
+     */
+    public function weeztixIntegrationStatus(): string
+    {
+        $c = $this->weeztixConfig;
+        if ($c === null) {
+            return 'none';
+        }
+
+        $hasClient = is_string($c->client_id) && $c->client_id !== '';
+        if (! $hasClient) {
+            return 'none';
+        }
+
+        if (! $c->is_connected) {
+            return 'credentials';
+        }
+
+        if (! is_string($c->coupon_guid) || $c->coupon_guid === '') {
+            return 'connected';
+        }
+
+        return 'ready';
+    }
 }