Point QR Plus app at qrplus.ladill.com.

Update defaults, SSO redirect, and deploy runbook for the new subdomain.

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

config/app.php

@@ -123,11 +123,11 @@ return [
         'store' => env('APP_MAINTENANCE_STORE', 'database'),
     ],
 
-    // Platform identity surfaces (Zoho One model). Ladill QR Plus (qr.ladill.com).
+    // Platform identity surfaces (Zoho One model). Ladill QR Plus (qrplus.ladill.com).
     'platform_domain' => env('PLATFORM_DOMAIN', parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com'),
     'auth_domain' => env('AUTH_DOMAIN', 'auth.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
     'account_domain' => env('ACCOUNT_DOMAIN', 'account.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
-    'qr_domain' => env('QR_DOMAIN', parse_url((string) env('APP_URL', 'https://qr.ladill.com'), PHP_URL_HOST) ?: 'qr.ladill.com'),
+    'qr_domain' => env('QR_DOMAIN', parse_url((string) env('APP_URL', 'https://qrplus.ladill.com'), PHP_URL_HOST) ?: 'qrplus.ladill.com'),
     'servers_domain' => env('SERVERS_DOMAIN', 'servers.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
     'domains_domain' => env('DOMAINS_DOMAIN', 'domains.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
 

config/services.php

@@ -23,7 +23,7 @@ return [
         'issuer' => 'https://'.config('app.auth_domain'),
         'client_id' => env('LADILL_SSO_CLIENT_ID'),
         'client_secret' => env('LADILL_SSO_CLIENT_SECRET'),
-        'redirect' => rtrim((string) env('APP_URL', 'https://bird.ladill.com'), '/').'/sso/callback',
+        'redirect' => rtrim((string) env('APP_URL', 'https://qrplus.ladill.com'), '/').'/sso/callback',
     ],
 
     'ladill_webmail' => [