feat(helpdesk): align module with core list/drawer standards

- add helpdesk module pages, services, settings and tests

- standardize debtor list on drawer/grid contracts and robust filter drawer behavior

- add helpdesk aside panel navigation and settings visibility provider

- switch primary list slug to helpdesk/debitor and remove helpdesk/search compatibility

- include required core contract updates for list contracts and detail/drawer integration

web/js/core/app-grid-factory.js

@@ -1370,6 +1370,35 @@ const normalizeListMode = (value) => {
   return 'drawer';
 };
 
+const resolveDrawerRoot = (gridConfig, filterOptions = {}) => {
+  const explicitRoot = filterOptions?.drawerRoot;
+  if (explicitRoot) {
+    return resolveDomQueryElement(explicitRoot) || document;
+  }
+
+  const containerEl = gridConfig?.container instanceof Element
+    ? gridConfig.container
+    : null;
+  if (!containerEl) {
+    return document;
+  }
+
+  const drawerSelector = String(filterOptions?.drawer?.drawerSelector || '[data-filter-drawer]').trim() || '[data-filter-drawer]';
+  const openSelector = String(filterOptions?.drawer?.openSelector || '[data-filter-drawer-open]').trim() || '[data-filter-drawer-open]';
+
+  let current = containerEl;
+  while (current && current !== document.documentElement) {
+    const hasDrawer = Boolean(current.querySelector(drawerSelector));
+    const hasOpenButton = Boolean(current.querySelector(openSelector));
+    if (hasDrawer && hasOpenButton) {
+      return current;
+    }
+    current = current.parentElement;
+  }
+
+  return containerEl.parentElement || document;
+};
+
 /**
  * Standardized list-page bootstrap:
  * - builds grid filters from schema (or uses explicit filters)
@@ -1425,7 +1454,7 @@ export function initStandardListPage(options = {}) {
     const chipUiConfig = filterOptions.chips && typeof filterOptions.chips === 'object'
       ? filterOptions.chips
       : {};
-    const drawerRoot = filterOptions.drawerRoot || document;
+    const drawerRoot = resolveDrawerRoot(gridConfig, filterOptions);
     const domLabels = readDomLabelDefaults({
       drawerRoot,
       chipsSelector: chipUiConfig.container || '[data-active-filter-chips]',