v3.0.16 — bug fixes (#964)

* fix(mcp): MCP RFC compliant for more strict clients * fix(mcp): serve flat /.well-known/oauth-protected-resource for ChatGPT reconnect Clients such as ChatGPT probe the flat well-known URL on every fresh discovery cycle (i.e. after a full disconnect/reconnect where cached OAuth state is cleared). The SDK's mcpAuthMetadataRouter only serves the path-based form /.well-known/oauth-protected-resource/mcp, so the flat probe returned 404. Without the resource metadata, ChatGPT fell back to the issuer URL as the resource parameter (https://…/ instead of https://…/mcp). The authorize handler then rejected it with invalid_target and redirected back to ChatGPT's callback with an error — showing the user the TREK home page instead of the consent form. Add an explicit GET handler for the flat URL that returns the same protected resource metadata, so the resource URI is discovered correctly on the first probe. * fix(mcp): fix OAuth popup blank page — SW denylist and COOP header Service worker was intercepting /oauth/authorize navigate requests (not in denylist), serving index.html, and React Router's catch-all redirected to / instead of the SDK authorize handler. Helmet's default COOP: same-origin isolated the /oauth/consent popup from its cross-origin opener, making window.opener null and breaking the popup-based OAuth completion signal for ChatGPT and similar clients. * fix(ntfy): encode non-Latin-1 header values with RFC 2047 to prevent ByteString crash Todo/trip names containing chars like → or € (and non-Latin-1 locale templates for Czech, Chinese, Russian, etc.) caused the Fetch API to throw when setting the ntfy Title header. Apply RFC 2047 base64 encoded-word encoding for any header value containing chars above U+00FF; ntfy decodes this automatically. * docs(mcp): document Cloudflare bot detection blocking ChatGPT MCP requests Add Cloudflare WAF note to MCP-Setup and a full troubleshooting entry covering root cause (IP reputation + UA heuristics), free-plan limitation (disable Bot Fight Mode entirely, with explicit warning), and paid-plan WAF skip rule with the full expression syntax and path table for all MCP/OAuth/.well-known routes. * fix(pwa): detect upstream proxy auth challenges and recover gracefully Behind Cloudflare Zero Trust or Pangolin, cross-origin auth redirects on /api/* calls surface as CORS errors (error.response === undefined) that the existing 401 interceptor never catches, leaving the PWA stuck with network-error toasts instead of re-authenticating. New connectivity module probes /api/health every 30s using fetch with cache:no-store and inspects Content-Type to reliably detect whether the server is reachable vs intercepted by an upstream proxy. axios interceptor changes: - On !error.response + navigator.onLine: run probeNow(); if the health probe also fails (proxy is intercepting all requests), trigger a guarded window.location.reload() so the edge proxy can intercept the top-level navigation and run its auth flow (covers CF Access and Pangolin 302 mode) - On error.response status 401 with text/html body: same reload path, covering Pangolin header-auth extended compatibility mode which returns 401+HTML instead of a 302 redirect. TREK own 401s are always JSON so there is no collision with the existing AUTH_REQUIRED branch. - sessionStorage flag prevents reload loops; cleared on any successful response so the guard resets after re-auth. /api/health excluded from SW NetworkFirst cache (vite.config.js regex) and Cache-Control: no-store added server-side so probes always hit the network and cannot be served stale from the 24h api-data cache. LoginPage caches last-known appConfig in localStorage so the SSO button renders in OIDC+UN/PW dual mode even when the config fetch is intercepted by the proxy. Auto-redirect to IdP skipped when config comes from cache to avoid redirect loops while the proxy is challenging. Fixes discussion #836. * fix(files): add bottom-nav padding to files tab wrapper on mobile * fix(budget): expose toolbar on mobile so users can add budget categories * fix(pwa): unregister SW before proxy-reauth reload so Pangolin can challenge WorkBox's NavigationRoute served the cached SPA shell on window.location.reload(), meaning Pangolin/CF Access never saw the navigation and the app was left stuck showing stale offline data. Unregistering the SW first lets the navigation reach the network so the upstream proxy can run its auth flow. Also rebuilds server/public with corrected sw.js (health excluded from NetworkFirst, /oauth/ and /.well-known/ added to NavigationRoute denylist). * chore: remove committed build artifacts from server/public Dockerfile and Proxmox community script both rebuild client/dist and copy it into server/public at build time — committed artifacts were never used. Replace with .gitkeep and add server/public/* to .gitignore. * chore: add build-from-sources script
2026-06-19 05:11:46 +00:00 · 2026-05-06 21:38:40 +02:00
parent 418f3e0bb2
commit 25f326a659
46 changed files with 2005 additions and 3149 deletions
@@ -218,7 +218,7 @@ export default function App() {
        <Route path="/forgot-password" element={<ForgotPasswordPage />} />
        <Route path="/reset-password" element={<ResetPasswordPage />} />
        {/* OAuth 2.1 consent page — intentionally outside ProtectedRoute */}
-        <Route path="/oauth/authorize" element={<OAuthAuthorizePage />} />
+        <Route path="/oauth/consent" element={<OAuthAuthorizePage />} />
        <Route
          path="/dashboard"
          element={
@@ -1,5 +1,6 @@
 import axios, { AxiosInstance } from 'axios'
 import { getSocketId } from './websocket'
+import { isReachable, probeNow } from '../sync/connectivity'
 import en from '../i18n/translations/en'
 import br from '../i18n/translations/br'
 import de from '../i18n/translations/de'
@@ -33,6 +34,7 @@ function translateRateLimit(): string {
 export const apiClient: AxiosInstance = axios.create({
  baseURL: '/api',
  withCredentials: true,
+  timeout: 8000,
  headers: {
    'Content-Type': 'application/json',
  },
@@ -42,24 +44,24 @@ const MUTATING_METHODS = new Set(['post', 'put', 'patch', 'delete'])

 // Request interceptor - add socket ID + idempotency key for mutating requests
 apiClient.interceptors.request.use(
-  (config) => {
-    const sid = getSocketId()
-    if (sid) {
-      config.headers['X-Socket-Id'] = sid
-    }
-    // Attach a per-request idempotency key to all write operations so the
-    // server can deduplicate retried requests (e.g. network blips).
-    // The mutation queue sets its own pre-generated key; skip if already set.
-    const method = (config.method ?? '').toLowerCase()
-    if (MUTATING_METHODS.has(method) && !config.headers['X-Idempotency-Key']) {
-      const key = typeof crypto !== 'undefined' && crypto.randomUUID
-        ? crypto.randomUUID()
-        : Math.random().toString(36).slice(2)
-      config.headers['X-Idempotency-Key'] = key
-    }
-    return config
-  },
-  (error) => Promise.reject(error)
+    (config) => {
+      const sid = getSocketId()
+      if (sid) {
+        config.headers['X-Socket-Id'] = sid
+      }
+      // Attach a per-request idempotency key to all write operations so the
+      // server can deduplicate retried requests (e.g. network blips).
+      // The mutation queue sets its own pre-generated key; skip if already set.
+      const method = (config.method ?? '').toLowerCase()
+      if (MUTATING_METHODS.has(method) && !config.headers['X-Idempotency-Key']) {
+        const key = typeof crypto !== 'undefined' && crypto.randomUUID
+            ? crypto.randomUUID()
+            : Math.random().toString(36).slice(2)
+        config.headers['X-Idempotency-Key'] = key
+      }
+      return config
+    },
+    (error) => Promise.reject(error)
 )

 export function isAuthPublicPath(pathname: string): boolean {
@@ -68,36 +70,84 @@ export function isAuthPublicPath(pathname: string): boolean {
  return publicPaths.includes(pathname) || publicPrefixes.some((p) => pathname.startsWith(p))
 }

-// Response interceptor - handle 401, 403 MFA, 429 rate limit
+// Unregisters the SW before reloading so the navigation reaches the network.
+// Without this, WorkBox's NavigationRoute serves the cached SPA shell and the
+// upstream proxy (CF Access / Pangolin) never gets to challenge the user.
+async function unregisterSWAndReload(): Promise<void> {
+  try {
+    const reg = await navigator.serviceWorker?.getRegistration()
+    if (reg) await reg.unregister()
+  } catch { /* ignore */ }
+  window.location.reload()
+}
+
+// Response interceptor - handle 401, 403 MFA, 429 rate limit, proxy auth challenges
 apiClient.interceptors.response.use(
-  (response) => response,
-  (error) => {
-    if (error.response?.status === 401 && (error.response?.data as { code?: string } | undefined)?.code === 'AUTH_REQUIRED') {
-      const { pathname } = window.location
-      if (!isAuthPublicPath(pathname)) {
-        const currentPath = pathname + window.location.search + window.location.hash
-        window.location.href = '/login?redirect=' + encodeURIComponent(currentPath)
+    (response) => {
+      sessionStorage.removeItem('proxy_reauth_attempted')
+      return response
+    },
+    async (error) => {
+      // CF Access / Pangolin / similar: cross-origin redirect from /api/* surfaces
+      // as a CORS error with no response object. Probe the health endpoint to
+      // distinguish a proxy auth challenge from a genuine outage. If the server
+      // is reachable, a top-level reload lets the edge proxy run its auth flow.
+      if (!error.response && navigator.onLine) {
+        await probeNow()
+        // Both the original request and the health probe failed while the device
+        // has a network interface. This matches the proxy-auth-challenge pattern
+        // (CF Access / Pangolin intercept all requests and CORS-block XHR).
+        // Guard with sessionStorage to prevent reload loops (server genuinely
+        // down would also land here, but only reloads once).
+        if (!isReachable()) {
+          const { pathname } = window.location
+          if (!isAuthPublicPath(pathname) && !sessionStorage.getItem('proxy_reauth_attempted')) {
+            sessionStorage.setItem('proxy_reauth_attempted', '1')
+            await unregisterSWAndReload()
+            return Promise.reject(error)
+          }
+        }
      }
-    }
-    if (
-      error.response?.status === 403 &&
-      (error.response?.data as { code?: string } | undefined)?.code === 'MFA_REQUIRED' &&
-      !window.location.pathname.startsWith('/settings')
-    ) {
-      window.location.href = '/settings?mfa=required'
-    }
-    if (error.response?.status === 429) {
-      const translated = translateRateLimit()
-      const data = error.response.data as { error?: string } | undefined
-      if (data && typeof data === 'object') {
-        data.error = translated
-      } else {
-        error.response.data = { error: translated }
+      // Pangolin header-auth extended compatibility mode: returns 401 with an
+      // HTML body (a JS redirect page) instead of a 302. TREK's own 401s are
+      // always application/json, so checking for text/html is unambiguous.
+      if (error.response?.status === 401) {
+        const ct = (error.response.headers?.['content-type'] as string | undefined) ?? ''
+        if (ct.includes('text/html')) {
+          const { pathname } = window.location
+          if (!isAuthPublicPath(pathname) && !sessionStorage.getItem('proxy_reauth_attempted')) {
+            sessionStorage.setItem('proxy_reauth_attempted', '1')
+            await unregisterSWAndReload()
+            return Promise.reject(error)
+          }
+        }
      }
-      error.message = translated
+      if (error.response?.status === 401 && (error.response?.data as { code?: string } | undefined)?.code === 'AUTH_REQUIRED') {
+        const { pathname } = window.location
+        if (!isAuthPublicPath(pathname)) {
+          const currentPath = pathname + window.location.search + window.location.hash
+          window.location.href = '/login?redirect=' + encodeURIComponent(currentPath)
+        }
+      }
+      if (
+          error.response?.status === 403 &&
+          (error.response?.data as { code?: string } | undefined)?.code === 'MFA_REQUIRED' &&
+          !window.location.pathname.startsWith('/settings')
+      ) {
+        window.location.href = '/settings?mfa=required'
+      }
+      if (error.response?.status === 429) {
+        const translated = translateRateLimit()
+        const data = error.response.data as { error?: string } | undefined
+        if (data && typeof data === 'object') {
+          data.error = translated
+        } else {
+          error.response.data = { error: translated }
+        }
+        error.message = translated
+      }
+      return Promise.reject(error)
    }
-    return Promise.reject(error)
-  }
 )

 export const authApi = {
@@ -142,6 +192,7 @@ export const oauthApi = {
    state?: string
    code_challenge: string
    code_challenge_method: string
+    resource?: string
  }) => apiClient.get('/oauth/authorize/validate', { params }).then(r => r.data),

  /** Submit user consent (approve or deny) */
@@ -153,12 +204,13 @@ export const oauthApi = {
    code_challenge: string
    code_challenge_method: string
    approved: boolean
+    resource?: string
  }) => apiClient.post('/oauth/authorize', body).then(r => r.data),

  clients: {
    list: () => apiClient.get('/oauth/clients').then(r => r.data),
    create: (data: { name: string; redirect_uris: string[]; allowed_scopes: string[] }) =>
-      apiClient.post('/oauth/clients', data).then(r => r.data),
+        apiClient.post('/oauth/clients', data).then(r => r.data),
    rotate: (id: string) => apiClient.post(`/oauth/clients/${id}/rotate`).then(r => r.data),
    delete: (id: string) => apiClient.delete(`/oauth/clients/${id}`).then(r => r.data),
  },
@@ -215,11 +267,11 @@ export const placesApi = {
    return apiClient.post(`/trips/${tripId}/places/import/map`, fd, { headers: { 'Content-Type': 'multipart/form-data' } }).then(r => r.data)
  },
  importGoogleList: (tripId: number | string, url: string) =>
-    apiClient.post(`/trips/${tripId}/places/import/google-list`, { url }).then(r => r.data),
+      apiClient.post(`/trips/${tripId}/places/import/google-list`, { url }).then(r => r.data),
  importNaverList: (tripId: number | string, url: string) =>
-    apiClient.post(`/trips/${tripId}/places/import/naver-list`, { url }).then(r => r.data),
+      apiClient.post(`/trips/${tripId}/places/import/naver-list`, { url }).then(r => r.data),
  bulkDelete: (tripId: number | string, ids: number[]) =>
-    apiClient.post(`/trips/${tripId}/places/bulk-delete`, { ids }).then(r => r.data),
+      apiClient.post(`/trips/${tripId}/places/bulk-delete`, { ids }).then(r => r.data),
 }

 export const assignmentsApi = {
@@ -313,7 +365,7 @@ export const adminApi = {
  createInvite: (data: { max_uses: number; expires_in_days?: number }) => apiClient.post('/admin/invites', data).then(r => r.data),
  deleteInvite: (id: number) => apiClient.delete(`/admin/invites/${id}`).then(r => r.data),
  auditLog: (params?: { limit?: number; offset?: number }) =>
-    apiClient.get('/admin/audit-log', { params }).then(r => r.data),
+      apiClient.get('/admin/audit-log', { params }).then(r => r.data),
  mcpTokens: () => apiClient.get('/admin/mcp-tokens').then(r => r.data),
  deleteMcpToken: (id: number) => apiClient.delete(`/admin/mcp-tokens/${id}`).then(r => r.data),
  oauthSessions: () => apiClient.get('/admin/oauth-sessions').then(r => r.data),
@@ -322,7 +374,7 @@ export const adminApi = {
  updatePermissions: (permissions: Record<string, string>) => apiClient.put('/admin/permissions', { permissions }).then(r => r.data),
  rotateJwtSecret: () => apiClient.post('/admin/rotate-jwt-secret').then(r => r.data),
  sendTestNotification: (data: Record<string, unknown>) =>
-    apiClient.post('/admin/dev/test-notification', data).then(r => r.data),
+      apiClient.post('/admin/dev/test-notification', data).then(r => r.data),
  getNotificationPreferences: () => apiClient.get('/admin/notification-preferences').then(r => r.data),
  updateNotificationPreferences: (prefs: Record<string, Record<string, boolean>>) => apiClient.put('/admin/notification-preferences', prefs).then(r => r.data),
  getDefaultUserSettings: () => apiClient.get('/admin/default-user-settings').then(r => r.data),
@@ -387,7 +439,7 @@ export const journeyApi = {
 export const mapsApi = {
  search: (query: string, lang?: string) => apiClient.post(`/maps/search?lang=${lang || 'en'}`, { query }).then(r => r.data),
  autocomplete: (input: string, lang?: string, locationBias?: { low: { lat: number; lng: number }; high: { lat: number; lng: number } }, signal?: AbortSignal) =>
-    apiClient.post('/maps/autocomplete', { input, lang, locationBias }, { signal }).then(r => r.data),
+      apiClient.post('/maps/autocomplete', { input, lang, locationBias }, { signal }).then(r => r.data),
  details: (placeId: string, lang?: string) => apiClient.get(`/maps/details/${encodeURIComponent(placeId)}`, { params: { lang } }).then(r => r.data),
  placePhoto: (placeId: string, lat?: number, lng?: number, name?: string) => apiClient.get(`/maps/place-photo/${encodeURIComponent(placeId)}`, { params: { lat, lng, name } }).then(r => r.data),
  reverse: (lat: number, lng: number, lang?: string) => apiClient.get('/maps/reverse', { params: { lat, lng, lang } }).then(r => r.data),
@@ -443,7 +495,7 @@ export const weatherApi = {

 export const configApi = {
  getPublicConfig: (): Promise<{ defaultLanguage: string }> =>
-    apiClient.get('/config').then(r => r.data),
+      apiClient.get('/config').then(r => r.data),
 }

 export const settingsApi = {
@@ -529,21 +581,21 @@ export const notificationsApi = {

 export const inAppNotificationsApi = {
  list: (params?: { limit?: number; offset?: number; unread_only?: boolean }) =>
-    apiClient.get('/notifications/in-app', { params }).then(r => r.data),
+      apiClient.get('/notifications/in-app', { params }).then(r => r.data),
  unreadCount: () =>
-    apiClient.get('/notifications/in-app/unread-count').then(r => r.data),
+      apiClient.get('/notifications/in-app/unread-count').then(r => r.data),
  markRead: (id: number) =>
-    apiClient.put(`/notifications/in-app/${id}/read`).then(r => r.data),
+      apiClient.put(`/notifications/in-app/${id}/read`).then(r => r.data),
  markUnread: (id: number) =>
-    apiClient.put(`/notifications/in-app/${id}/unread`).then(r => r.data),
+      apiClient.put(`/notifications/in-app/${id}/unread`).then(r => r.data),
  markAllRead: () =>
-    apiClient.put('/notifications/in-app/read-all').then(r => r.data),
+      apiClient.put('/notifications/in-app/read-all').then(r => r.data),
  delete: (id: number) =>
-    apiClient.delete(`/notifications/in-app/${id}`).then(r => r.data),
+      apiClient.delete(`/notifications/in-app/${id}`).then(r => r.data),
  deleteAll: () =>
-    apiClient.delete('/notifications/in-app/all').then(r => r.data),
+      apiClient.delete('/notifications/in-app/all').then(r => r.data),
  respond: (id: number, response: 'positive' | 'negative') =>
-    apiClient.post(`/notifications/in-app/${id}/respond`, { response }).then(r => r.data),
+      apiClient.post(`/notifications/in-app/${id}/respond`, { response }).then(r => r.data),
 }

-export default apiClient
+export default apiClient
@@ -719,8 +719,8 @@ export default function BudgetPanel({ tripId, tripMembers = [] }: BudgetPanelPro
          <h2 style={{ margin: 0, fontSize: 18, fontWeight: 600, color: 'var(--text-primary)', letterSpacing: '-0.01em', flexShrink: 0 }}>
            {t('budget.title')}
          </h2>
-          <div className="hidden md:flex" style={{ alignItems: 'center', gap: 8, marginLeft: 'auto', flexShrink: 0 }}>
-            <div style={{ width: 150 }}>
+          <div className="flex flex-wrap max-md:!w-full max-md:!mt-2" style={{ alignItems: 'center', gap: 8, marginLeft: 'auto', flexShrink: 0 }}>
+            <div className="max-md:!w-full" style={{ width: 150 }}>
              <CustomSelect
                value={currency}
                onChange={setCurrency}
@@ -730,7 +730,7 @@ export default function BudgetPanel({ tripId, tripMembers = [] }: BudgetPanelPro
              />
            </div>
            {canEdit && (
-              <div style={{ display: 'flex', gap: 6, width: 260 }}>
+              <div className="max-md:!w-full" style={{ display: 'flex', gap: 6, width: 260 }}>
                <input
                  value={newCategoryName}
                  onChange={e => setNewCategoryName(e.target.value)}
@@ -763,7 +763,7 @@ export default function BudgetPanel({ tripId, tripMembers = [] }: BudgetPanelPro
              onMouseEnter={e => e.currentTarget.style.opacity = '0.88'}
              onMouseLeave={e => e.currentTarget.style.opacity = '1'}
            >
-              <Download size={14} strokeWidth={2.5} /> CSV
+              <Download size={14} strokeWidth={2.5} /> <span className="hidden sm:inline">CSV</span>
            </button>
          </div>
        </div>
@@ -3,6 +3,9 @@ import ReactDOM from 'react-dom/client'
 import { BrowserRouter } from 'react-router-dom'
 import App from './App'
 import './index.css'
+import { startConnectivityProbe } from './sync/connectivity'
+
+startConnectivityProbe()

 ReactDOM.createRoot(document.getElementById('root')!).render(
  <React.StrictMode>
@@ -39,11 +39,11 @@ describe('LoginPage — OIDC redirect preservation', () => {

  describe('FE-PAGE-LOGIN-022: redirect param stashed in sessionStorage on mount', () => {
    it('saves decoded redirect to sessionStorage when ?redirect= is present', async () => {
-      setSearch('?redirect=%2Foauth%2Fauthorize%3Fclient_id%3Dfoo');
+      setSearch('?redirect=%2Foauth%2Fconsent%3Fclient_id%3Dfoo');
      render(<LoginPage />);

      await waitFor(() => {
-        expect(sessionStorage.getItem('oidc_redirect')).toBe('/oauth/authorize?client_id=foo');
+        expect(sessionStorage.getItem('oidc_redirect')).toBe('/oauth/consent?client_id=foo');
      });
    });

@@ -60,21 +60,21 @@ describe('LoginPage — OIDC redirect preservation', () => {
  describe('FE-PAGE-LOGIN-023: OIDC code exchange navigates to sessionStorage redirect', () => {
    beforeEach(() => {
      server.use(
-        http.get('/api/auth/oidc/exchange', () =>
-          HttpResponse.json({ token: 'mock-oidc-token' })
-        ),
+          http.get('/api/auth/oidc/exchange', () =>
+              HttpResponse.json({ token: 'mock-oidc-token' })
+          ),
      );
    });

    it('navigates to the saved sessionStorage redirect after successful OIDC exchange', async () => {
-      sessionStorage.setItem('oidc_redirect', '/oauth/authorize?client_id=foo&state=xyz');
+      sessionStorage.setItem('oidc_redirect', '/oauth/consent?client_id=foo&state=xyz');
      setSearch('?oidc_code=testcode123');
      render(<LoginPage />);

      await waitFor(() => {
        expect(mockNavigate).toHaveBeenCalledWith(
-          '/oauth/authorize?client_id=foo&state=xyz',
-          { replace: true },
+            '/oauth/consent?client_id=foo&state=xyz',
+            { replace: true },
        );
      });

@@ -93,7 +93,7 @@ describe('LoginPage — OIDC redirect preservation', () => {

  describe('FE-PAGE-LOGIN-024: OIDC error clears sessionStorage redirect', () => {
    it('removes oidc_redirect from sessionStorage on OIDC error', async () => {
-      sessionStorage.setItem('oidc_redirect', '/oauth/authorize?client_id=foo');
+      sessionStorage.setItem('oidc_redirect', '/oauth/consent?client_id=foo');
      setSearch('?oidc_error=token_failed');
      render(<LoginPage />);

@@ -102,4 +102,4 @@ describe('LoginPage — OIDC redirect preservation', () => {
      });
    });
  });
-});
+});
@@ -117,15 +117,29 @@ export default function LoginPage(): React.ReactElement {
      return
    }

-    authApi.getAppConfig?.().catch(() => null).then((config: AppConfig | null) => {
-      if (config) {
-        setAppConfig(config)
-        if (!config.has_users) setMode('register')
-        if (!config.password_login && config.oidc_login && config.oidc_configured && config.has_users && !invite && !noRedirect) {
-          window.location.href = '/api/auth/oidc/login'
+    const CONFIG_CACHE_KEY = 'trek_app_config_cache'
+    authApi.getAppConfig?.()
+      .then((config: AppConfig) => {
+        try { localStorage.setItem(CONFIG_CACHE_KEY, JSON.stringify(config)) } catch { /* ignore quota errors */ }
+        return { config, fromCache: false }
+      })
+      .catch(() => {
+        try {
+          const raw = localStorage.getItem(CONFIG_CACHE_KEY)
+          return raw ? { config: JSON.parse(raw) as AppConfig, fromCache: true } : { config: null as AppConfig | null, fromCache: false }
+        } catch { return { config: null as AppConfig | null, fromCache: false } }
+      })
+      .then(({ config, fromCache }) => {
+        if (config) {
+          setAppConfig(config)
+          if (!config.has_users) setMode('register')
+          // Skip auto-redirect when config is from cache — network is unreliable
+          // and auto-redirecting to the IdP could loop if the proxy changed.
+          if (!fromCache && !config.password_login && config.oidc_login && config.oidc_configured && config.has_users && !invite && !noRedirect) {
+            window.location.href = '/api/auth/oidc/login'
+          }
        }
-      }
-    })
+      })
  }, [navigate, t, noRedirect])

  // Language detection chain (runs once on mount, only if user has no saved preference):
@@ -12,7 +12,7 @@ import OAuthAuthorizePage from './OAuthAuthorizePage';
 const DEFAULT_SEARCH = '?client_id=test-client&redirect_uri=http%3A%2F%2Flocalhost%3A4000%2Fcallback&scope=trips%3Aread&state=abc&code_challenge=challenge&code_challenge_method=S256';

 function setSearchParams(search: string) {
-  window.history.pushState({}, '', '/oauth/authorize' + search);
+  window.history.pushState({}, '', '/oauth/consent' + search);
 }

 const VALIDATE_OK = {
@@ -34,6 +34,7 @@ export default function OAuthAuthorizePage(): React.ReactElement {
  const state          = params.get('state') || ''
  const codeChallenge  = params.get('code_challenge') || ''
  const ccMethod       = params.get('code_challenge_method') || ''
+  const resource       = params.get('resource') || undefined

  // Load auth state once, then validate
  useEffect(() => {
@@ -43,7 +44,7 @@ export default function OAuthAuthorizePage(): React.ReactElement {
  useEffect(() => {
    if (authLoading) return
    validateRequest()
-  // eslint-disable-next-line react-hooks/exhaustive-deps
+    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [authLoading, isAuthenticated])

  async function validateRequest() {
@@ -57,6 +58,7 @@ export default function OAuthAuthorizePage(): React.ReactElement {
        code_challenge: codeChallenge,
        code_challenge_method: ccMethod,
        response_type: 'code',
+        resource,
      })
      setValidation(result)

@@ -99,6 +101,7 @@ export default function OAuthAuthorizePage(): React.ReactElement {
        code_challenge: codeChallenge,
        code_challenge_method: ccMethod,
        approved,
+        resource,
      })
      setPageState('done')
      window.location.href = result.redirect
@@ -111,20 +114,20 @@ export default function OAuthAuthorizePage(): React.ReactElement {

  function toggleScope(s: string) {
    setSelectedScopes(prev =>
-      prev.includes(s) ? prev.filter(x => x !== s) : [...prev, s]
+        prev.includes(s) ? prev.filter(x => x !== s) : [...prev, s]
    )
  }

  function toggleGroup(groupScopes: string[], allSelected: boolean) {
    setSelectedScopes(prev =>
-      allSelected
-        ? prev.filter(s => !groupScopes.includes(s))
-        : [...new Set([...prev, ...groupScopes])]
+        allSelected
+            ? prev.filter(s => !groupScopes.includes(s))
+            : [...new Set([...prev, ...groupScopes])]
    )
  }

  function handleLoginRedirect() {
-    const next = '/oauth/authorize?' + params.toString() + window.location.hash
+    const next = '/oauth/consent?' + params.toString() + window.location.hash
    window.location.href = '/login?redirect=' + encodeURIComponent(next)
  }

@@ -145,212 +148,212 @@ export default function OAuthAuthorizePage(): React.ReactElement {

  if (pageState === 'loading' || pageState === 'auto_approving') {
    return (
-      <div className="min-h-screen flex items-center justify-center" style={{ background: 'var(--bg-primary)' }}>
-        <div className="flex flex-col items-center gap-3">
-          <Loader2 className="w-8 h-8 animate-spin" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
-          <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
-            {pageState === 'auto_approving' ? 'Authorizing…' : 'Loading…'}
-          </p>
+        <div className="min-h-screen flex items-center justify-center" style={{ background: 'var(--bg-primary)' }}>
+          <div className="flex flex-col items-center gap-3">
+            <Loader2 className="w-8 h-8 animate-spin" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
+            <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
+              {pageState === 'auto_approving' ? 'Authorizing…' : 'Loading…'}
+            </p>
+          </div>
        </div>
-      </div>
    )
  }

  if (pageState === 'error') {
    return (
-      <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
-        <div className="w-full max-w-sm rounded-xl shadow-lg p-8 space-y-4 text-center" style={{ background: 'var(--bg-card)' }}>
-          <AlertTriangle className="w-10 h-10 mx-auto text-red-500" />
-          <h1 className="text-xl font-semibold" style={{ color: 'var(--text-primary)' }}>Authorization Error</h1>
-          <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>{errorMsg}</p>
+        <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
+          <div className="w-full max-w-sm rounded-xl shadow-lg p-8 space-y-4 text-center" style={{ background: 'var(--bg-card)' }}>
+            <AlertTriangle className="w-10 h-10 mx-auto text-red-500" />
+            <h1 className="text-xl font-semibold" style={{ color: 'var(--text-primary)' }}>Authorization Error</h1>
+            <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>{errorMsg}</p>
+          </div>
        </div>
-      </div>
    )
  }

  if (pageState === 'login_required') {
    return (
-      <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
-        <div className="w-full max-w-sm rounded-xl shadow-lg p-8 space-y-5" style={{ background: 'var(--bg-card)' }}>
-          <div className="text-center space-y-2">
-            <Lock className="w-10 h-10 mx-auto" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
-            <h1 className="text-xl font-semibold" style={{ color: 'var(--text-primary)' }}>Sign in to continue</h1>
-            <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
-              <strong>{validation?.client?.name || clientId}</strong> wants access to your TREK account. Please sign in first.
-            </p>
+        <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
+          <div className="w-full max-w-sm rounded-xl shadow-lg p-8 space-y-5" style={{ background: 'var(--bg-card)' }}>
+            <div className="text-center space-y-2">
+              <Lock className="w-10 h-10 mx-auto" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
+              <h1 className="text-xl font-semibold" style={{ color: 'var(--text-primary)' }}>Sign in to continue</h1>
+              <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
+                <strong>{validation?.client?.name || clientId}</strong> wants access to your TREK account. Please sign in first.
+              </p>
+            </div>
+            <button
+                onClick={handleLoginRedirect}
+                className="w-full flex items-center justify-center gap-2 px-4 py-2.5 rounded-lg text-sm font-medium text-white"
+                style={{ background: 'var(--accent-primary, #4f46e5)' }}>
+              <LogIn className="w-4 h-4" />
+              Sign in to TREK
+            </button>
          </div>
-          <button
-            onClick={handleLoginRedirect}
-            className="w-full flex items-center justify-center gap-2 px-4 py-2.5 rounded-lg text-sm font-medium text-white"
-            style={{ background: 'var(--accent-primary, #4f46e5)' }}>
-            <LogIn className="w-4 h-4" />
-            Sign in to TREK
-          </button>
        </div>
-      </div>
    )
  }

  // pageState === 'consent'
  return (
-    <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
-      <div className="w-full max-w-2xl rounded-xl shadow-lg overflow-hidden flex flex-col sm:flex-row" style={{ background: 'var(--bg-card)' }}>
+      <div className="min-h-screen flex items-center justify-center p-4" style={{ background: 'var(--bg-primary)' }}>
+        <div className="w-full max-w-2xl rounded-xl shadow-lg overflow-hidden flex flex-col sm:flex-row" style={{ background: 'var(--bg-card)' }}>

-        {/* Left panel — app identity + actions */}
-        <div className="sm:w-64 sm:flex-shrink-0 flex flex-col px-8 py-8 sm:border-r" style={{ borderColor: 'var(--border-primary)' }}>
-          <div className="flex-1 space-y-4">
-            <div className="w-12 h-12 rounded-full flex items-center justify-center" style={{ background: 'var(--bg-secondary)' }}>
-              <ShieldCheck className="w-6 h-6" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
-            </div>
-            <div>
-              <p className="text-xs font-medium uppercase tracking-wide mb-1" style={{ color: 'var(--text-tertiary)' }}>Authorization Request</p>
-              <h1 className="text-lg font-semibold leading-snug" style={{ color: 'var(--text-primary)' }}>
-                {validation?.client?.name || clientId}
-              </h1>
-              <p className="text-sm mt-2" style={{ color: 'var(--text-secondary)' }}>
-                This application is requesting access to your TREK account.
-              </p>
-            </div>
-          </div>
-
-          <div className="mt-8 space-y-2">
-            <p className="text-xs mb-3" style={{ color: 'var(--text-tertiary)' }}>
-              Only grant access to applications you trust. Your data stays on your server.
-            </p>
-            <button
-              onClick={() => submitConsent(true)}
-              disabled={submitting || (validation?.scopeSelectable === true && selectedScopes.length === 0)}
-              className="w-full px-4 py-2.5 rounded-lg text-sm font-medium text-white disabled:opacity-60 transition-opacity"
-              style={{ background: 'var(--accent-primary, #4f46e5)' }}>
-              {submitting
-                ? 'Authorizing…'
-                : validation?.scopeSelectable && selectedScopes.length === 0
-                  ? 'Select at least one scope'
-                  : validation?.scopeSelectable
-                    ? `Approve (${selectedScopes.length} scope${selectedScopes.length !== 1 ? 's' : ''})`
-                    : 'Approve Access'}
-            </button>
-            <button
-              onClick={() => submitConsent(false)}
-              disabled={submitting}
-              className="w-full px-4 py-2.5 rounded-lg text-sm font-medium border transition-colors hover:bg-slate-50 dark:hover:bg-slate-800 disabled:opacity-60"
-              style={{ borderColor: 'var(--border-primary)', color: 'var(--text-secondary)' }}>
-              Deny
-            </button>
-          </div>
-        </div>
-
-        {/* Right panel — selectable scopes */}
-        <div className="flex-1 px-6 py-8 overflow-y-auto max-h-[80vh] sm:max-h-[600px]">
-          <div className="space-y-6">
-            {Object.keys(scopesByGroup).length > 0 && (
+          {/* Left panel — app identity + actions */}
+          <div className="sm:w-64 sm:flex-shrink-0 flex flex-col px-8 py-8 sm:border-r" style={{ borderColor: 'var(--border-primary)' }}>
+            <div className="flex-1 space-y-4">
+              <div className="w-12 h-12 rounded-full flex items-center justify-center" style={{ background: 'var(--bg-secondary)' }}>
+                <ShieldCheck className="w-6 h-6" style={{ color: 'var(--accent-primary, #4f46e5)' }} />
+              </div>
              <div>
-                <p className="text-xs font-medium uppercase tracking-wide mb-4" style={{ color: 'var(--text-tertiary)' }}>
-                  {validation?.scopeSelectable ? 'Choose which permissions to grant' : 'Permissions requested'}
+                <p className="text-xs font-medium uppercase tracking-wide mb-1" style={{ color: 'var(--text-tertiary)' }}>Authorization Request</p>
+                <h1 className="text-lg font-semibold leading-snug" style={{ color: 'var(--text-primary)' }}>
+                  {validation?.client?.name || clientId}
+                </h1>
+                <p className="text-sm mt-2" style={{ color: 'var(--text-secondary)' }}>
+                  This application is requesting access to your TREK account.
                </p>
+              </div>
+            </div>

-                {validation?.scopeSelectable ? (
-                  /* DCR client — user selects which scopes to grant */
-                  <div className="space-y-3">
-                    {Object.entries(scopesByGroup).map(([group, groupScopes]) => {
-                      const allGroupSelected = groupScopes.every(s => selectedScopes.includes(s))
-                      const someGroupSelected = groupScopes.some(s => selectedScopes.includes(s))
-                      return (
-                        <div key={group} className="rounded-lg border overflow-hidden" style={{ borderColor: 'var(--border-primary)' }}>
-                          <label className="flex items-center gap-2.5 px-3 py-2 cursor-pointer" style={{ background: 'var(--bg-secondary)' }}>
-                            <input
-                              type="checkbox"
-                              checked={allGroupSelected}
-                              ref={el => { if (el) el.indeterminate = someGroupSelected && !allGroupSelected }}
-                              onChange={() => toggleGroup(groupScopes, allGroupSelected)}
-                              className="rounded flex-shrink-0"
-                            />
-                            <span className="text-xs font-semibold" style={{ color: 'var(--text-secondary)' }}>{group}</span>
-                            <span className="ml-auto text-xs" style={{ color: 'var(--text-tertiary)' }}>
+            <div className="mt-8 space-y-2">
+              <p className="text-xs mb-3" style={{ color: 'var(--text-tertiary)' }}>
+                Only grant access to applications you trust. Your data stays on your server.
+              </p>
+              <button
+                  onClick={() => submitConsent(true)}
+                  disabled={submitting || (validation?.scopeSelectable === true && selectedScopes.length === 0)}
+                  className="w-full px-4 py-2.5 rounded-lg text-sm font-medium text-white disabled:opacity-60 transition-opacity"
+                  style={{ background: 'var(--accent-primary, #4f46e5)' }}>
+                {submitting
+                    ? 'Authorizing…'
+                    : validation?.scopeSelectable && selectedScopes.length === 0
+                        ? 'Select at least one scope'
+                        : validation?.scopeSelectable
+                            ? `Approve (${selectedScopes.length} scope${selectedScopes.length !== 1 ? 's' : ''})`
+                            : 'Approve Access'}
+              </button>
+              <button
+                  onClick={() => submitConsent(false)}
+                  disabled={submitting}
+                  className="w-full px-4 py-2.5 rounded-lg text-sm font-medium border transition-colors hover:bg-slate-50 dark:hover:bg-slate-800 disabled:opacity-60"
+                  style={{ borderColor: 'var(--border-primary)', color: 'var(--text-secondary)' }}>
+                Deny
+              </button>
+            </div>
+          </div>
+
+          {/* Right panel — selectable scopes */}
+          <div className="flex-1 px-6 py-8 overflow-y-auto max-h-[80vh] sm:max-h-[600px]">
+            <div className="space-y-6">
+              {Object.keys(scopesByGroup).length > 0 && (
+                  <div>
+                    <p className="text-xs font-medium uppercase tracking-wide mb-4" style={{ color: 'var(--text-tertiary)' }}>
+                      {validation?.scopeSelectable ? 'Choose which permissions to grant' : 'Permissions requested'}
+                    </p>
+
+                    {validation?.scopeSelectable ? (
+                        /* DCR client — user selects which scopes to grant */
+                        <div className="space-y-3">
+                          {Object.entries(scopesByGroup).map(([group, groupScopes]) => {
+                            const allGroupSelected = groupScopes.every(s => selectedScopes.includes(s))
+                            const someGroupSelected = groupScopes.some(s => selectedScopes.includes(s))
+                            return (
+                                <div key={group} className="rounded-lg border overflow-hidden" style={{ borderColor: 'var(--border-primary)' }}>
+                                  <label className="flex items-center gap-2.5 px-3 py-2 cursor-pointer" style={{ background: 'var(--bg-secondary)' }}>
+                                    <input
+                                        type="checkbox"
+                                        checked={allGroupSelected}
+                                        ref={el => { if (el) el.indeterminate = someGroupSelected && !allGroupSelected }}
+                                        onChange={() => toggleGroup(groupScopes, allGroupSelected)}
+                                        className="rounded flex-shrink-0"
+                                    />
+                                    <span className="text-xs font-semibold" style={{ color: 'var(--text-secondary)' }}>{group}</span>
+                                    <span className="ml-auto text-xs" style={{ color: 'var(--text-tertiary)' }}>
                              {groupScopes.filter(s => selectedScopes.includes(s)).length}/{groupScopes.length}
                            </span>
-                          </label>
-                          <div className="divide-y" style={{ borderColor: 'var(--border-primary)' }}>
-                            {groupScopes.map(s => {
-                              const keys = SCOPE_GROUPS[s]
-                              return (
-                                <label
-                                  key={s}
-                                  className="flex items-start gap-2.5 px-3 py-2 cursor-pointer transition-colors hover:bg-slate-50 dark:hover:bg-slate-800/50">
-                                  <input
-                                    type="checkbox"
-                                    checked={selectedScopes.includes(s)}
-                                    onChange={() => toggleScope(s)}
-                                    className="mt-0.5 rounded flex-shrink-0"
-                                  />
-                                  <span className="mt-0.5 text-base leading-none flex-shrink-0">
+                                  </label>
+                                  <div className="divide-y" style={{ borderColor: 'var(--border-primary)' }}>
+                                    {groupScopes.map(s => {
+                                      const keys = SCOPE_GROUPS[s]
+                                      return (
+                                          <label
+                                              key={s}
+                                              className="flex items-start gap-2.5 px-3 py-2 cursor-pointer transition-colors hover:bg-slate-50 dark:hover:bg-slate-800/50">
+                                            <input
+                                                type="checkbox"
+                                                checked={selectedScopes.includes(s)}
+                                                onChange={() => toggleScope(s)}
+                                                className="mt-0.5 rounded flex-shrink-0"
+                                            />
+                                            <span className="mt-0.5 text-base leading-none flex-shrink-0">
                                    {s.endsWith(':delete') ? '🗑️' : s.endsWith(':write') ? '✏️' : '👁️'}
                                  </span>
-                                  <div className="min-w-0">
-                                    <p className="text-sm font-medium" style={{ color: 'var(--text-primary)' }}>{keys ? t(keys.labelKey) : s}</p>
-                                    <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{keys ? t(keys.descriptionKey) : ''}</p>
+                                            <div className="min-w-0">
+                                              <p className="text-sm font-medium" style={{ color: 'var(--text-primary)' }}>{keys ? t(keys.labelKey) : s}</p>
+                                              <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{keys ? t(keys.descriptionKey) : ''}</p>
+                                            </div>
+                                          </label>
+                                      )
+                                    })}
                                  </div>
-                                </label>
-                              )
-                            })}
-                          </div>
-                        </div>
-                      )
-                    })}
-                  </div>
-                ) : (
-                  /* Settings-created client — scopes are fixed, show read-only */
-                  <div className="space-y-5">
-                    {Object.entries(scopesByGroup).map(([group, groupScopes]) => (
-                      <div key={group}>
-                        <p className="text-xs font-semibold mb-2" style={{ color: 'var(--text-secondary)' }}>{group}</p>
-                        <div className="space-y-1.5">
-                          {groupScopes.map(s => {
-                            const keys = SCOPE_GROUPS[s]
-                            return (
-                              <div key={s} className="flex items-start gap-2.5 px-3 py-2 rounded-lg" style={{ background: 'var(--bg-secondary)' }}>
-                                <span className="mt-0.5 text-base leading-none flex-shrink-0">
-                                  {s.endsWith(':delete') ? '🗑️' : s.endsWith(':write') ? '✏️' : '👁️'}
-                                </span>
-                                <div className="min-w-0">
-                                  <p className="text-sm font-medium" style={{ color: 'var(--text-primary)' }}>{keys ? t(keys.labelKey) : s}</p>
-                                  <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{keys ? t(keys.descriptionKey) : ''}</p>
                                </div>
-                              </div>
                            )
                          })}
                        </div>
-                      </div>
-                    ))}
+                    ) : (
+                        /* Settings-created client — scopes are fixed, show read-only */
+                        <div className="space-y-5">
+                          {Object.entries(scopesByGroup).map(([group, groupScopes]) => (
+                              <div key={group}>
+                                <p className="text-xs font-semibold mb-2" style={{ color: 'var(--text-secondary)' }}>{group}</p>
+                                <div className="space-y-1.5">
+                                  {groupScopes.map(s => {
+                                    const keys = SCOPE_GROUPS[s]
+                                    return (
+                                        <div key={s} className="flex items-start gap-2.5 px-3 py-2 rounded-lg" style={{ background: 'var(--bg-secondary)' }}>
+                                <span className="mt-0.5 text-base leading-none flex-shrink-0">
+                                  {s.endsWith(':delete') ? '🗑️' : s.endsWith(':write') ? '✏️' : '👁️'}
+                                </span>
+                                          <div className="min-w-0">
+                                            <p className="text-sm font-medium" style={{ color: 'var(--text-primary)' }}>{keys ? t(keys.labelKey) : s}</p>
+                                            <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{keys ? t(keys.descriptionKey) : ''}</p>
+                                          </div>
+                                        </div>
+                                    )
+                                  })}
+                                </div>
+                              </div>
+                          ))}
+                        </div>
+                    )}
                  </div>
-                )}
-              </div>
-            )}
+              )}

-            {/* Always-available tools — granted regardless of scopes */}
-            <div>
-              <p className="text-xs font-medium uppercase tracking-wide mb-3" style={{ color: 'var(--text-tertiary)' }}>
-                Always included
-              </p>
-              <div className="space-y-1.5">
-                {[
-                  { name: 'list_trips',       desc: 'List your trips so the AI can discover trip IDs' },
-                  { name: 'get_trip_summary', desc: 'Read a trip overview needed to use any other tool' },
-                ].map(({ name, desc }) => (
-                  <div key={name} className="flex items-start gap-2.5 px-3 py-2 rounded-lg" style={{ background: 'var(--bg-secondary)' }}>
-                    <span className="mt-0.5 text-base leading-none flex-shrink-0">👁️</span>
-                    <div className="min-w-0">
-                      <p className="text-sm font-medium font-mono" style={{ color: 'var(--text-primary)' }}>{name}</p>
-                      <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{desc}</p>
-                    </div>
-                  </div>
-                ))}
+              {/* Always-available tools — granted regardless of scopes */}
+              <div>
+                <p className="text-xs font-medium uppercase tracking-wide mb-3" style={{ color: 'var(--text-tertiary)' }}>
+                  Always included
+                </p>
+                <div className="space-y-1.5">
+                  {[
+                    { name: 'list_trips',       desc: 'List your trips so the AI can discover trip IDs' },
+                    { name: 'get_trip_summary', desc: 'Read a trip overview needed to use any other tool' },
+                  ].map(({ name, desc }) => (
+                      <div key={name} className="flex items-start gap-2.5 px-3 py-2 rounded-lg" style={{ background: 'var(--bg-secondary)' }}>
+                        <span className="mt-0.5 text-base leading-none flex-shrink-0">👁️</span>
+                        <div className="min-w-0">
+                          <p className="text-sm font-medium font-mono" style={{ color: 'var(--text-primary)' }}>{name}</p>
+                          <p className="text-xs mt-0.5" style={{ color: 'var(--text-tertiary)' }}>{desc}</p>
+                        </div>
+                      </div>
+                  ))}
+                </div>
              </div>
            </div>
          </div>
-        </div>

+        </div>
      </div>
-    </div>
  )
-}
+}
@@ -1174,7 +1174,7 @@ export default function TripPlannerPage(): React.ReactElement | null {
        )}

        {activeTab === 'dateien' && (
-          <div style={{ height: '100%', overflow: 'hidden', overscrollBehavior: 'contain' }}>
+          <div style={{ height: '100%', overflow: 'hidden', overscrollBehavior: 'contain', paddingBottom: 'var(--bottom-nav-h)' }}>
            <FileManager
              files={files || []}
              onUpload={(fd) => tripActions.addFile(tripId, fd)}
@@ -0,0 +1,47 @@
+const PROBE_INTERVAL_MS = 30_000
+const PROBE_TIMEOUT_MS = 1_500
+
+let reachable = true
+const listeners = new Set<(v: boolean) => void>()
+
+function setReachable(v: boolean): void {
+  if (reachable === v) return
+  reachable = v
+  listeners.forEach(fn => fn(v))
+}
+
+async function probe(): Promise<void> {
+  if (!navigator.onLine) { setReachable(false); return }
+  try {
+    const ctrl = new AbortController()
+    const t = setTimeout(() => ctrl.abort(), PROBE_TIMEOUT_MS)
+    const res = await fetch('/api/health', {
+      method: 'GET',
+      credentials: 'include',
+      cache: 'no-store',
+      signal: ctrl.signal,
+    })
+    clearTimeout(t)
+    // /api/health returns JSON. CF Access / Pangolin will either return HTML
+    // (Pangolin 200 auth wall) or trigger a cross-origin redirect that throws
+    // below. Both proxy-auth scenarios resolve to reachable = false.
+    const ct = res.headers.get('content-type') || ''
+    setReachable(res.ok && ct.includes('application/json'))
+  } catch {
+    setReachable(false)
+  }
+}
+
+export function startConnectivityProbe(): void {
+  probe()
+  setInterval(probe, PROBE_INTERVAL_MS)
+  window.addEventListener('online', probe)
+  window.addEventListener('offline', () => setReachable(false))
+}
+
+export function isReachable(): boolean { return reachable }
+export function probeNow(): Promise<void> { return probe() }
+export function onChange(fn: (v: boolean) => void): () => void {
+  listeners.add(fn)
+  return () => listeners.delete(fn)
+}
@@ -11,7 +11,7 @@ export default defineConfig({
        maximumFileSizeToCacheInBytes: 10 * 1024 * 1024,
        globPatterns: ['**/*.{js,css,html,svg,png,woff,woff2,ttf}'],
        navigateFallback: 'index.html',
-        navigateFallbackDenylist: [/^\/api/, /^\/uploads/, /^\/mcp/],
+        navigateFallbackDenylist: [/^\/api/, /^\/uploads/, /^\/mcp/, /^\/oauth\//, /^\/.well-known\//],
        runtimeCaching: [
          {
            // Carto map tiles (default provider)
@@ -46,7 +46,7 @@ export default defineConfig({
          {
            // API calls — prefer network, fall back to cache
            // Exclude sensitive endpoints (auth, admin, backup, settings)
-            urlPattern: /\/api\/(?!auth|admin|backup|settings).*/i,
+            urlPattern: /\/api\/(?!auth|admin|backup|settings|health).*/i,
            handler: 'NetworkFirst',
            options: {
              cacheName: 'api-data',
@@ -110,7 +110,30 @@ export default defineConfig({
      '/mcp': {
        target: 'http://localhost:3001',
        changeOrigin: true,
-      }
+      },
+      // OAuth 2.1 endpoints handled by backend (SDK authorize handler + token/revoke)
+      // /oauth/authorize goes to backend so the SDK can redirect to /oauth/consent
+      // /oauth/consent is served by Vite as a SPA route (no proxy entry needed)
+      '/oauth/authorize': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+      '/oauth/token': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+      '/oauth/register': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+      '/oauth/revoke': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+      '/.well-known': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
    }
  }
 })