Strip trailing whitespace failing phpcs (unblocks CI/deploy)

CI has been red since the CSRF-drift changes landed a trailing space on the
'success' => false line in these two endpoints, which blocks the deploy job
(and therefore beta/prod). No logic change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

api/add_comment.php

@@ -53,7 +53,7 @@ try {
             http_response_code(403);
             header('Content-Type: application/json');
             echo json_encode([
-                'success' => false, 
+                'success' => false,
                 'error' => 'Invalid CSRF token',
                 'csrf_token' => CsrfMiddleware::getToken()
             ]);

api/update_ticket.php

@@ -49,7 +49,7 @@ try {
             http_response_code(403);
             header('Content-Type: application/json');
             echo json_encode([
-                'success' => false, 
+                'success' => false,
                 'error' => 'Invalid CSRF token',
                 'csrf_token' => CsrfMiddleware::getToken()
             ]);