fix: display username in UI, fix license limits key mismatch

- Read user profile from Logto ID token in OrgResolver, store in
  Zustand org store, display in sidebar footer and TopBar avatar
- Fix license limits showing "—" by aligning frontend LIMIT_LABELS
  keys with backend snake_case convention (max_agents, retention_days,
  max_environments)
- Bump @cameleer/design-system to v0.1.38 (font-size floor)
- Add dev volume mount for local UI hot-reload without image rebuild

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/components/Layout.tsx

@@ -7,6 +7,7 @@ import {
 } from '@cameleer/design-system';
 import { useAuth } from '../auth/useAuth';
 import { useScopes } from '../auth/useScopes';
+import { useOrgStore } from '../auth/useOrganization';
 import { EnvironmentTree } from './EnvironmentTree';
 import cameleerLogo from '@cameleer/design-system/assets/cameleer3-logo.svg';
 
@@ -93,6 +94,7 @@ export function Layout() {
   const navigate = useNavigate();
   const { logout } = useAuth();
   const scopes = useScopes();
+  const { username } = useOrgStore();
 
   const [envSectionOpen, setEnvSectionOpen] = useState(true);
   const [collapsed, setCollapsed] = useState(false);
@@ -158,7 +160,7 @@ export function Layout() {
         {/* User info + logout */}
         <Sidebar.FooterLink
           icon={<UserIcon />}
-          label="Account"
+          label={username ?? 'Account'}
           onClick={logout}
         />
       </Sidebar.Footer>
@@ -169,7 +171,7 @@ export function Layout() {
     <AppShell sidebar={sidebar}>
       <TopBar
         breadcrumb={[]}
-        user={undefined}
+        user={username ? { name: username } : undefined}
         onLogout={logout}
       />
       <Outlet />