Fix thread ID matching for email replies

supabase/functions/send-contact-message/index.ts

@@ -232,6 +232,13 @@ const handler = async (req: Request): Promise<Response> => {
         }
       });
 
+    // Update thread_id with Message-ID format (always, not just when email is sent)
+    const threadId = `${ticketNumber}.${submission.id}`;
+    await supabase
+      .from('contact_submissions')
+      .update({ thread_id: threadId })
+      .eq('id', submission.id);
+
     if (forwardEmailKey) {
       // Send admin notification
       fetch('https://api.forwardemail.net/v1/emails', {
@@ -302,12 +309,6 @@ The ThrillWiki Team`,
       }).catch(err => {
         edgeLogger.error('Failed to send confirmation email', { requestId, error: err.message });
       });
-
-      // Update thread_id with ticket number
-      await supabase
-        .from('contact_submissions')
-        .update({ thread_id: `ticket-${ticketNumber}` })
-        .eq('id', submission.id);
     }
 
     const duration = Date.now() - startTime;