remove the onboarding flow and the accountMode leftover

Onboarding was dead in three layers:

- The OnboardingAdmin screen was only reachable from a route block in App.tsx
  that has been commented out, so it never rendered. Its ServerTypeCard carried
  accountMode ('organization' | 'single'), inherited from the codebase this was
  based on and meaningless for a single-user platform.
- Two /onboarding-complete endpoints, one public and one protected, that no
  frontend code called. Both read a server_config key that was never written, so
  both answered false while the app's own path defaulted to true.
- HomeScreen gated on settings.onboarding.complete to show a welcome panel, and
  seedHomeDir created an Onboarding folder from DATA_PATH/Onboarding and
  /Onboarding_Admin — neither seed directory exists, so it only ever produced an
  empty folder.

Also drops the onboarding key from UserSettings and the now-empty home-header
panel from the default home layout.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/apps/officer-web/Screens/Dashboard/Home/HomeScreen.tsx

@@ -1,61 +1,14 @@
-import type { LayoutNode, PanelComponents, DefaultFileSort } from 'officerdev';
-import { WorkspaceView, useFileViewerPanels } from 'officerdev';
+import type { LayoutNode } from 'officerdev';
+import { WorkspaceView } from 'officerdev';
 import { useDashboardState } from 'state/useDashboardState';
-import { useSettings } from 'state/useSettings';
-import { Button } from '@/components/ui/button';
 import { defaultLayout } from './defaultLayout';
 
-const HomeHeader = () => {
-  const { settings, saveSettings } = useSettings();
-
-  const completeOnboarding = () => {
-    saveSettings({ ...settings, onboarding: { complete: true } });
-  };
-
-  return (
-    <div className="flex h-full items-center justify-center p-6 text-center">
-      <div>
-        <h1 className="text-2xl font-bold">Welcome to your Officer.dev platform</h1>
-        <p className="mt-2 text-sm opacity-70">
-          Please follow the video instructions below in order to get familiar with all that is possible.
-        </p>
-        <Button className="mt-6" onClick={completeOnboarding}>
-          I'm ready
-        </Button>
-      </div>
-    </div>
-  );
-};
-
-const components: PanelComponents = {
-  'home-header': HomeHeader,
-};
-
-const defaultSort: DefaultFileSort = { field: 'type', direction: 'desc' };
-
 export const HomeScreen = () => {
   const workspace = useDashboardState<LayoutNode>('screens/home', defaultLayout);
-  const ephemeral = useFileViewerPanels();
-  const { settings } = useSettings();
-
-  if (settings.onboarding.complete) {
-    return (
-      <div className="h-full w-full">
-        <WorkspaceView workspace={workspace} />
-      </div>
-    );
-  }
 
   return (
     <div className="h-full w-full">
-      <WorkspaceView
-        workspace={workspace}
-        locked
-        initialFilePath="/Onboarding"
-        defaultFileSort={defaultSort}
-        components={components}
-        ephemeral={ephemeral}
-      />
+      <WorkspaceView workspace={workspace} />
     </div>
   );
 };

src/apps/officer-web/Screens/Dashboard/Home/defaultLayout.tsx

@@ -4,9 +4,5 @@ export const defaultLayout: LayoutNode = {
   type: 'group',
   id: 'home-root',
   direction: 'vertical',
-  children: [
-    { node: { type: 'panel', id: 'home-header', appType: null }, size: 30 },
-    { node: { type: 'panel', id: 'home-files', appType: 'officerdev/file-browser' }, size: 70 },
-  ],
+  children: [{ node: { type: 'panel', id: 'home-files', appType: 'officerdev/file-browser' }, size: 100 }],
 };
-