fix: frontend error reporting route - bypass auth middleware

- Create handle/controller/Log.php (no auth) for dealer error reports
- Update error-report.js URL: /index/log_report → /log/report
- index app already has Log controller at /log/report

public/static/handle/js/error-report.js

@@ -1,5 +1,5 @@
 (function() {
-    var reportUrl = '/index/log_report';
+    var reportUrl = '/log/report';
     var queue = [];
     var sending = false;