fix(ui): keep dashboard configuration exit available and align heading help

Verified with the coordinated workspace changes by devkit full run
2026-09-08T225814-186389-0000-3e3ed7cd (all seven phases passed).
This shared UI pass does not mark the individual module reviews complete.

webui/src/features/dashboard/DashboardPage.tsx

@@ -6,7 +6,6 @@ import {
   type DragEvent as ReactDragEvent
 } from "react";
 import {
-  RefreshCw,
   Save,
   SlidersHorizontal,
   X
@@ -24,6 +23,7 @@ import {
   isApiError,
   useEffectiveView,
   usePlatformModules,
+  useUnsavedChanges,
   useUnsavedDraftGuard,
   type ApiSettings,
   type AuthInfo,
@@ -185,6 +185,7 @@ export default function DashboardPage({
   ]);
 
   const dirty = configuring && !layoutsEqual(savedLayout, draftLayout);
+  const { requestDiscard } = useUnsavedChanges();
   useUnsavedDraftGuard({
     dirty,
     onSave: persistLayout,
@@ -253,12 +254,21 @@ export default function DashboardPage({
 
   function discardChanges() {
     setDraftLayout(savedLayout);
+    exitConfiguration();
+  }
+
+  function exitConfiguration() {
     setConfiguring(false);
     setEditingInstanceId(null);
     setDragItem(null);
     setDropTarget(null);
   }
 
+  function cancelConfiguration() {
+    if (dirty) requestDiscard(exitConfiguration);
+    else exitConfiguration();
+  }
+
   function beginConfiguration() {
     setDraftLayout(savedLayout);
     setConfiguring(true);
@@ -447,6 +457,7 @@ export default function DashboardPage({
       archetype={configuring ? "editor" : "overview"}
       className="dashboard-page"
       title="i18n:govoplan-dashboard.dashboard.3f8b4df2"
+      titleHelp={<DocumentationHelpLink reference={DASHBOARD_DOCUMENTATION} />}
       description="Personal workspace assembled from installed module widgets."
       error={error}
       success={error ? "" : notice}
@@ -454,8 +465,7 @@ export default function DashboardPage({
         <PageActionBar
           variant="editor"
           state={saving ? "saving" : dirty ? "dirty" : "clean"}
-          helpAction={<DocumentationHelpLink reference={DASHBOARD_DOCUMENTATION} />}
-          discardAction={{ label: <><X size={16} /> Cancel</>, onClick: discardChanges }}
+          discardAction={{ label: <><X size={16} /> Cancel</>, behavior: "exit", onClick: cancelConfiguration }}
           saveAction={{ label: <><Save size={16} /> Save layout</>, onClick: () => void persistLayout() }}
         />
       ) : (
@@ -467,7 +477,6 @@ export default function DashboardPage({
             loading,
             disabledReason: loading ? DASHBOARD_I18N.loading : undefined
           }}
-          helpAction={<DocumentationHelpLink reference={DASHBOARD_DOCUMENTATION} />}
           primaryActions={(
             <Button
               onClick={beginConfiguration}