Fix column names in send-notification and migration

Updated to use the correct database column names:
- email_subject (not subject)
- email_body_html (not body_html)

Changes:
- send-notification/index.ts: Added fallback to check both email_subject/subject
  and email_body_html/body_html for compatibility
- Migration: Updated to use correct column names (email_subject, email_body_html)

This matches the actual database schema shown in the notification_templates table.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

supabase/functions/send-notification/index.ts

@@ -265,8 +265,8 @@ serve(async (req: Request): Promise<Response> => {
       }
     }
 
-    const subject = replaceVariables(template.subject, allVariables);
-    const htmlContent = replaceVariables(template.body_html || template.body_text || "", allVariables);
+    const subject = replaceVariables(template.email_subject || template.subject || "", allVariables);
+    const htmlContent = replaceVariables(template.email_body_html || template.body_html || template.body_text || "", allVariables);
 
     // Wrap with master template for consistent branding
     const htmlBody = EmailTemplateRenderer.render({

supabase/migrations/20250103000001_update_order_created_template_with_qr.sql

@@ -3,7 +3,8 @@
 
 UPDATE notification_templates
 SET
-  body_html = '
+  email_subject = 'Konfirmasi Pesanan - Order #{order_id}',
+  email_body_html = '
 <div style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;">
   <h2 style="color: #333;">Konfirmasi Pesanan</h2>
 
@@ -78,9 +79,9 @@ WHERE key = 'order_created';
 -- Verify the update
 SELECT
   key,
-  subject,
+  email_subject,
   is_active,
-  LEFT(body_html, 100) as body_preview,
+  LEFT(email_body_html, 100) as body_preview,
   updated_at
 FROM notification_templates
 WHERE key = 'order_created';