Sign-in no longer hangs on phones: the callback and sign-out stop sending Clear-Site-Data, which Chrome holds (with the session cookie) until the cache is cleared (#124)

ddiff --git a/server/auth/sso.js b/server/auth/sso.js
iindex d5a5995..94aa7d7 100644
---- a/server/auth/sso.js
++++ b/server/auth/sso.js
@@@ -94,8 +94,8 @@ function createSsoRoutes({ config, auth, fetchImpl = globalThis.fetch }) {
          try {
              const data = await tokenGrant({ grant_type: 'authorization_code', redirect_uri: config.oauth.redirectUri, code });
              setSession(res, data.access_token, data.refresh_token);
--            // Whatever this browser kept of the site was drawn for a guest: drop it.
--            res.set('Clear-Site-Data', '"cache"');
++            // No Clear-Site-Data here or on sign-out: Chrome holds such an answer (and the cookies it sets) until the
++            // cache is cleared, which on phones left people on the account chooser with no session (2026-10-28).
              return res.redirect(next);
          } catch (err) {
              return res.status(502).type('text/plain').send(`Sign-in failed: ${err.message}`);
@@@ -106,7 +106,6 @@ function createSsoRoutes({ config, auth, fetchImpl = globalThis.fetch }) {
          res.clearCookie(ACCESS, { path: '/' });
          res.clearCookie(REFRESH, { path: '/auth' });
          res.cookie(HINT, 'guest', { ...base, httpOnly: false, path: '/', maxAge: 365 * 24 * 60 * 60 * 1000 });
--        res.set('Clear-Site-Data', '"cache"');
          res.redirect(sanitizeNext(req.query.next, config));
      });