fix(email): use client/org name as From display, not Ladill product

Customer-facing outbound mail should appear from the business (organizer,
clinic, company, location), not the Ladill product brand.

app/Services/Comms/EmailService.php

@@ -27,9 +27,11 @@ class EmailService
             $logoUrl = OrganizationBranding::emailLogoUrl($organization);
             $companyName = $organization->name;
         }
+        // Client-facing From display: org/company name, never the Ladill product brand.
+        $displayName = trim((string) ($fromName ?: $companyName)) ?: null;
 
         try {
-            Mail::to($to)->send(new ContactMessageMail($subject, $body, $fromName, $replyTo, $logoUrl, $companyName));
+            Mail::to($to)->send(new ContactMessageMail($subject, $body, $displayName, $replyTo, $logoUrl, $companyName));
 
             return true;
         } catch (\Throwable $e) {

app/Services/Qms/QueueNotificationService.php

@@ -77,7 +77,8 @@ class QueueNotificationService
             $this->sms->send($phone, $message);
         }
         if ($email) {
-            $this->email->send($email, 'Ladill Queue update', $message, null, null, $organization);
+            $orgName = trim((string) ($organization?->name ?? '')) ?: 'Queue';
+            $this->email->send($email, $orgName.' — queue update', $message, $orgName, null, $organization);
         }
     }