Open Cam messages in Dock Chats (#113)

ddiff --git a/deploy/nginx/openvibe.cam.conf b/deploy/nginx/openvibe.cam.conf
iindex dc17b74..30bbe46 100644
---- a/deploy/nginx/openvibe.cam.conf
++++ b/deploy/nginx/openvibe.cam.conf
@@@ -79,6 +79,13 @@ server {
          proxy_pass http://127.0.0.1:5160;
      }
  
++    # Give the Dock token the session probe's rate-limit budget.
++    location = /auth/navbar-token {
++        limit_req zone=cam_api burst=30 nodelay;
++        limit_req_status 429;
++        proxy_pass http://127.0.0.1:5160;
++    }
++
      location /auth/ {
          limit_req zone=cam_auth burst=10 nodelay;
          limit_req_status 429;
ddiff --git a/server/app.js b/server/app.js
iindex 39e6c09..74a7518 100644
---- a/server/app.js
++++ b/server/app.js
@@@ -118,7 +118,7 @@ async function createApp(opts = {}) {
      app.use(sso.middleware());
  
      // ── Sign-in (OAuth2 + PKCE client of OpenVibe.Network) ──
--    app.use('/auth/', rateLimit({ windowMs: 15 * 60_000, limit: 60, standardHeaders: true, legacyHeaders: false }));
++    app.use('/auth/', rateLimit({ windowMs: 15 * 60_000, limit: 60, skip: (req) => req.path === '/me' || req.path === '/navbar-token', standardHeaders: true, legacyHeaders: false }));
      app.use('/auth', sso.routes());
      { const legal = require('openvibe-shared/legal'); app.get(legal.PATHS, legal.handler({ id: 'cam', service: 'cam', host: 'openvibe.cam', name: 'OpenVibe.Cam', profile: 'ugc' })); }
  
ddiff --git a/server/auth/sso.js b/server/auth/sso.js
iindex a3b9dc2..1093903 100644
---- a/server/auth/sso.js
++++ b/server/auth/sso.js
@@@ -183,6 +183,14 @@ function createSso({ config, keys, fetchImpl = globalThis.fetch, now = () => Dat
              return res.json({ user: meOf(claims) });
          });
  
++        // The shared Dock needs a verified Network access token from this HTTP-only session.
++        r.get('/navbar-token', (req, res) => {
++            res.set('Cache-Control', cache.htmlHeaders({ private: true }));
++            const viewer = req.viewer;
++            if (!viewer || viewer.kind !== 'user' || !viewer.token) return res.status(401).json({ error: 'Not signed in' });
++            return res.json({ token: viewer.token });
++        });
++
          // Sign-out stays a same-site action: another site cannot sign a person out.
          const sameOriginRequest = (req) => {
              const site = String(req.get('sec-fetch-site') || '');
ddiff --git a/server/render/layout.js b/server/render/layout.js
iindex 4106cf8..81b6280 100644
---- a/server/render/layout.js
++++ b/server/render/layout.js
@@@ -59,6 +59,7 @@ function renderPage(o) {
          history: { type: 'page', title: o.title || SITE_NAME },
          silentLogin: `${o.config.baseUrl}/auth/login?silent=1&next={url}`,
          sessionUrl: '/auth/me',
++        tokenUrl: '/auth/navbar-token',
          loginUrl: '/auth/login?next={path}',
          logoutUrl: '/auth/logout?next={path}',
          notificationsRealtime: true,
ddiff --git a/test/sso.test.js b/test/sso.test.js
iindex 3417cce..f264c67 100644
---- a/test/sso.test.js
++++ b/test/sso.test.js
@@@ -53,6 +53,11 @@ const cookieJar = (res) => res.headers.getSetCookie().map((c) => c.split(';')[0]
          const me = await t.get('/auth/me', { cookie: `ov_token=${at}` });
          assert.strictEqual(me.json().user.username, 'kim');
          assert.ok(!me.text.includes(at), '/auth/me never returns the token');
++        const nav = await t.get('/auth/navbar-token', { cookie: `ov_token=${at}` });
++        assert.strictEqual(nav.status, 200);
++        assert.strictEqual(nav.json().token, at, 'the Dock receives the verified Network token');
++        assert.strictEqual(nav.headers.get('cache-control'), 'private, no-store');
++        assert.strictEqual((await t.get('/auth/navbar-token')).status, 401, 'a guest receives no token');
      });
  
      await check('the old cookie is still the session, so nobody is signed out by the move', async () => {