fix(ui): align contextual documentation with headings

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/postbox/PostboxAdminPanel.tsx

@@ -21,6 +21,7 @@ import { FormGrid,
   ConfirmDialog,
   Dialog,
   DocumentationHelpLink,
+  TextWithHelp,
   FormField,
   IconButton,
   MetricCard,
@@ -794,7 +795,7 @@ export default function PostboxAdminPanel({
 
   return (
     <AdminPageLayout
-      title="Postboxes"
+      title="Postboxes" titleHelp={<DocumentationHelpLink reference={POSTBOX_ADMIN_DOCUMENTATION} />}
       description="Manage durable organization-function addresses and reusable templates."
       loading={loading}
       error={error}
@@ -809,7 +810,7 @@ export default function PostboxAdminPanel({
             disabled={loading || busy}
             disabledReason={postboxBusyReason(loading, busy)}
           />
-          <DocumentationHelpLink reference={POSTBOX_ADMIN_DOCUMENTATION} />
+
           {mode === "templates" && canManageTemplates ? (
             <Button variant="primary" onClick={openNewTemplate} disabled={busy} disabledReason={postboxBusyReason(false, busy)}>
               <Plus size={16} /> New template
@@ -1525,9 +1526,10 @@ function TemplateDialog({
         <div className="postbox-routing-section">
           <div className="postbox-routing-heading">
             <div>
-              <strong>Hierarchy linked copies</strong>
+              <TextWithHelp as="div" help={<DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />}>
+                <strong>Hierarchy linked copies</strong>
+              </TextWithHelp>
               <span>Copy to explicitly bounded function Postboxes in one selected structure.</span>
-              <DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />
             </div>
             <ToggleSwitch
               label="Enable hierarchy linked copies"
@@ -1948,11 +1950,12 @@ function ProtectionConfigurationFields({
     <div className="postbox-routing-section">
       <div className="postbox-routing-heading">
         <div>
-          <strong>Content protection and hand-over policy</strong>
+          <TextWithHelp as="div" help={<DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />}>
+            <strong>Content protection and hand-over policy</strong>
+          </TextWithHelp>
           <span>
             The institution chooses the protection boundary. Managed envelope encryption is the recommended standard.
           </span>
-          <DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />
         </div>
         {selected?.standard ? <StatusBadge status="recommended" label="Standard" /> : null}
       </div>
@@ -2156,9 +2159,10 @@ function GroupingPolicyFields({
     <div className="postbox-protection-section">
       <div className="postbox-routing-heading">
         <div>
-          <strong>Unified-inbox separation</strong>
+          <TextWithHelp as="div" help={<DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />}>
+            <strong>Unified-inbox separation</strong>
+          </TextWithHelp>
           <span>Keep source containers and institutional responsibilities visibly separated where required.</span>
-          <DocumentationHelpLink reference={POSTBOX_FIELD_DOCUMENTATION} />
         </div>
       </div>
       <FormGrid>

webui/src/features/postbox/PostboxPage.tsx

@@ -680,11 +680,11 @@ export default function PostboxPage({
             refreshable
             reloadAction={{ onReload: () => void loadDirectory(), loading: loadingDirectory || busy }}
             className="postbox-bar"
-            contextActions={<div className="postbox-bar-title">
+            title={<span className="postbox-bar-title">
               <Inbox size={17} aria-hidden="true" />
               <strong>Postbox</strong>
-            </div>}
-            helpAction={<DocumentationHelpLink reference={POSTBOX_DOCUMENTATION} />}
+            </span>}
+            titleHelp={<DocumentationHelpLink reference={POSTBOX_DOCUMENTATION} />}
             createAction={<IconButton
                 label="New unified view"
                 icon={<Plus size={16} />}