feat: rebuild web UI on the shared theta42 app stack; OIDC + local admin auth

The web management UI was a bespoke minimal theme with LDAP-bind login.
Rebuild it to match the SSO Manager and Proxy — same stack, same look/feel,
same auth model. The SSH bridge, audit, metrics, and access logic are
unchanged; this is purely the web layer.

Frontend (mirrors proxy/sso):
- Express + EJS with the shared top.ejs/bottom.ejs shell, Bootstrap 5,
  jQuery, jq-repeat, FontAwesome, Socket.IO, and the shared app-base.js /
  val.js client framework (copied verbatim). Vendor libs served from
  node_modules via /static-modules; app assets via /static.
- Dashboard / Sessions / Audit pages render in the common look/feel,
  loading data through the authenticated /api/* endpoints.

Auth (mirrors proxy):
- OIDC against the SSO (utils/oidc.js + routes/auth.js + models/oidc_state)
  plus a local anti-lockout admin (models/user_redis.js, bootstrapped from
  auth.adminUsers[0] / auth.localAdminPass). AuthToken sessions carry the
  group snapshot; middleware gates the data API on adminGroups or the local
  admin. New config: oidc{} + auth.adminUsers/localAdminPass.
- /api/user/me drives the client login state; "Log in with SSO" hidden when
  oidc.enabled is false.

Verified end to end: local admin login -> token -> /api/user/me isAdmin,
metrics/sessions/audit 200 with token / 401 without / 401 bad password;
static + page shells serve; 26 tests green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

nodejs/bin/www

@@ -2,24 +2,33 @@
 'use strict';
 
 // Boots BOTH faces of the jump host: the SSH front door (services/ssh_server)
-// and the web UI/API (app.js). One process, one redis, shared audit store.
+// and the web UI/API (app.js + Socket.IO). One process, one redis, shared
+// audit store.
 
 const http = require('http');
 const conf = require('@simpleworkjs/conf');
+const { Server } = require('socket.io');
 
-require('../models'); // wire model-redis + register models
+require('../models');
 
 const app = require('../app');
+const middleware = require('../middleware/auth');
 const sshServer = require('../services/ssh_server');
 
-// Web server
 const webPort = (conf.web && conf.web.port) || 3002;
 const server = http.createServer(app);
+
+// Socket.IO — the client framework (app-base.js) opens an authenticated socket.
+// We don't push anything yet, but serving /socket.io keeps the shared front-end
+// working exactly as it does in the sibling apps.
+const io = new Server(server);
+io.use(middleware.authIO);
+app.io = io;
+
 server.listen(webPort, () => {
 	console.log(`[web] jump-host UI/API on :${server.address().port}`);
 });
 
-// SSH server
 sshServer.start();
 
 function shutdown() {