fix: properly check email send result in admin test endpoint

send_raw() returns EmailLog, not boolean - check status=="sent" and
return error_message on failure instead of always reporting success.

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

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

app/api/v1/admin/settings.py

@@ -659,7 +659,7 @@ def send_test_email(
         email_service = EmailService(db)
 
         # Send test email using platform configuration
-        success = email_service.send_raw(
+        email_log = email_service.send_raw(
             to_email=request.to_email,
             to_name=None,
             subject="Wizamart Platform - Test Email",
@@ -684,7 +684,8 @@ def send_test_email(
             is_platform_email=True,
         )
 
-        if success:
+        # Check if email was actually sent (send_raw returns EmailLog, not boolean)
+        if email_log.status == "sent":
             # Log action
             admin_audit_service.log_action(
                 db=db,
@@ -703,7 +704,7 @@ def send_test_email(
         else:
             return TestEmailResponse(
                 success=False,
-                message="Failed to send test email. Check server logs for details.",
+                message=email_log.error_message or "Failed to send test email. Check server logs for details.",
             )
 
     except Exception as e: