fix: adminPath reroute — move to hooks.ts universal hook, read config.json directly

src/routes/admin/+page.svelte

@@ -771,6 +771,8 @@
             >
               <span
                 class="drag-handle"
+                role="button"
+                tabindex="0"
                 draggable="true"
                 ondragstart={(e) => onUnitDragStart(e, unit.id, null)}
                 ondragend={onUnitDragEnd}