Settings: Dotfiles file-browser workspace

- New Settings → Dotfiles section: a mini-workspace rooted at home/{firstName}
  reusing FileTree + the Monaco CodeEditor
- Drag-and-drop files/folders (FileSystem entries API) or upload a folder
  (webkitdirectory) / files; edit in-place; new file; delete
- Files stored relative to HOME via the encrypted userDotfiles API
- Repo & setup panel (public repo URL + ref + setup script path) writing
  userEnvironment; secrets nudge toward the Secrets feature

apps/next/src/app/(app)/settings/dotfiles/page.tsx

@@ -0,0 +1,22 @@
+'use server';
+
+import { DotfilesManager } from '@/components/settings/dotfiles/dotfiles-manager';
+
+const SettingsDotfilesPage = () => {
+  return (
+    <section className='space-y-4'>
+      <div>
+        <h2 className='text-xl font-semibold'>Dotfiles</h2>
+        <p className='text-muted-foreground mt-1 text-sm'>
+          Your personal shell, editor, and tool config — applied to the
+          workspace terminal in every thread. Files are placed relative to your
+          home directory (e.g. <code>.bashrc</code>,{' '}
+          <code>.config/nvim/init.lua</code>).
+        </p>
+      </div>
+      <DotfilesManager />
+    </section>
+  );
+};
+
+export default SettingsDotfilesPage;

apps/next/src/app/(app)/settings/layout.tsx

@@ -3,7 +3,7 @@
 import type { ReactNode } from 'react';
 import Link from 'next/link';
 import { usePathname } from 'next/navigation';
-import { Brain, Github, ServerCog, Shield, User } from 'lucide-react';
+import { Brain, FileCog, Github, ServerCog, Shield, User } from 'lucide-react';
 
 import { cn } from '@spoon/ui';
 
@@ -11,6 +11,7 @@ const settingsItems = [
   { href: '/settings/profile', label: 'Profile', icon: User },
   { href: '/settings/integrations', label: 'Integrations', icon: Github },
   { href: '/settings/ai-providers', label: 'AI providers', icon: Brain },
+  { href: '/settings/dotfiles', label: 'Dotfiles', icon: FileCog },
   { href: '/settings/worker', label: 'Worker', icon: ServerCog },
   { href: '/settings/security', label: 'Security', icon: Shield },
 ];