fix(security): add error logging to JsonException catch blocks

Author: gr8man

system/Security/Security.php

@@ -295,6 +295,7 @@ private function removeTokenInRequest(IncomingRequest $request): void
         try {
             $json = json_decode($body, flags: JSON_THROW_ON_ERROR);
         } catch (JsonException) {
+            log_message('error', 'Invalid JSON in request body during CSRF token removal');
             $json = null;
         }
 
@@ -346,6 +347,7 @@ private function getPostedToken(IncomingRequest $request): ?string
         try {
             $json = json_decode($body, flags: JSON_THROW_ON_ERROR);
         } catch (JsonException) {
+            log_message('error', 'Invalid JSON in request body during CSRF token retrieval');
             $json = null;
         }