Remote access device tree, issue terminology, hide main-pane scrollbar.

Devices dashboard uses an issues-style expandable tree with whitelist cues
and links to related issues/graphs; user-facing crash wording becomes issue.

Co-authored-by: Cursor <cursoragent@cursor.com>

examples/app_hub/assets/i18n/hub-en.json

@@ -17,11 +17,11 @@
   "nav.remote": "Remote access",
   "nav.short_links": "Short links",
   "nav.short_links_desc": "Mint bearer tokens and shorten URLs for s.f0xx.org.",
-  "nav.console_desc": "Crash triage home and workspace cards.",
+  "nav.console_desc": "Issue triage home and workspace cards.",
   "nav.git_desc": "Browse repos, branches, and tags.",
-  "nav.issues_desc": "Browse and triage crash reports.",
+  "nav.issues_desc": "Browse and triage issues.",
   "nav.tickets_desc": "Roadmap tasks, QA items, and tags.",
-  "nav.graphs_desc": "Sessions, crashes, and device activity.",
+  "nav.graphs_desc": "Sessions, issues, and device activity.",
   "nav.remote_desc": "WireGuard sessions and device reachability.",
   "nav.builder_desc": "Docker CI for APK baking and OTA artifacts.",
   "nav.builder": "Builder",

examples/app_hub/assets/i18n/hub-ru.json

@@ -19,9 +19,9 @@
   "nav.short_links_desc": "Токены и сокращение URL для s.f0xx.org.",
   "nav.console_desc": "Главная консоли и карточки разделов.",
   "nav.git_desc": "Репозитории, ветки и теги.",
-  "nav.issues_desc": "Просмотр и разбор отчётов о сбоях.",
+  "nav.issues_desc": "Просмотр и разбор issues.",
   "nav.tickets_desc": "Задачи roadmap, QA и теги.",
-  "nav.graphs_desc": "Сессии, сбои и активность устройств.",
+  "nav.graphs_desc": "Сессии, issues и активность устройств.",
   "nav.remote_desc": "Сессии WireGuard и доступ к устройствам.",
   "nav.builder_desc": "Docker CI для сборки APK и OTA.",
   "nav.builder": "Сборщик",

examples/app_hub/landing-pages.inc.php

@@ -17,7 +17,7 @@
         <p class="muted">Wi‑Fi and USB transport with adaptive bitrate and session metrics.</p>
       </article>
       <article class="card card--lift">
-        <h3>Crashes</h3>
+        <h3>Issues</h3>
         <p class="muted">Ingest, triage tickets, and correlate fingerprints across releases.</p>
       </article>
       <article class="card card--lift">