fix: resolve frontend routing, API mismatches, and missing UI components

- Add servers list page and missing routes (servers, settings redirect, account security)
- Fix members page .map error (API returns { data } wrapper, not flat array)
- Fix auth store fetchUser expecting flat User but API returns { user } wrapper
- Add node token display dialog after creation
- Add allocation management UI to node detail page
- Add account security page with password change
- Add change-password API endpoint
- Add node servers and stats API endpoints
- Fix config save using PATCH instead of PUT, add api.put method
- Fix audit logs field name mismatch (userName vs username)
- Replace admin nodes page to avoid orgId dependency
- Remove duplicate sidebar nav items

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/src/components/layout/sidebar.tsx

@@ -32,8 +32,7 @@ export function Sidebar() {
         { label: 'Dashboard', href: `/org/${orgId}/dashboard`, icon: LayoutDashboard },
         { label: 'Servers', href: `/org/${orgId}/servers`, icon: Server },
         { label: 'Nodes', href: `/org/${orgId}/nodes`, icon: Network },
-        { label: 'Members', href: `/org/${orgId}/settings/members`, icon: Users },
-        { label: 'Settings', href: `/org/${orgId}/settings`, icon: Settings },
+        { label: 'Settings', href: `/org/${orgId}/settings/members`, icon: Settings },
       ]
     : [];