Improve logout patch debug and tighten detection

- Add debugMode parameter to initLogoutPatch with structured console logging
- Pass MODE_DEBUG into logout_one_liner init call
- Exclude <form> elements and large text blocks from logout candidates to avoid mapping LAM user list form as logout

Ref: https://chatgpt.com/share/692b325e-37c0-800f-bb5a-129aae4c65f8

roles/sys-front-inj-logout/templates/logout_one_liner.js.j2

@@ -2,6 +2,7 @@ document.addEventListener('DOMContentLoaded', function() {
     initLogoutPatch(
         '{{ OIDC.CLIENT.LOGOUT_URL }}',
         '{{ WEB_PROTOCOL }}',
-        '{{ PRIMARY_DOMAIN }}'
+        '{{ PRIMARY_DOMAIN }}',
+        {{ MODE_DEBUG | lower }}
     );
-});
+});