v1.16.0: OpenBao as central secrets store + vault broker + UI rework

- Boot: bao-conf.init('sso-manager') replaces conf_manager; deep-merges
  secret/sso-manager/conf over file config (fail-soft). Scoped VAULT_TOKEN
  (policy sso-broker), never root.
- /api/vault reworked: middleware.auth -> scopeGuard -> token-injecting
  proxy. vault_broker.js mints Redis-cached per-user (user-<uid>) /
  per-admin (sso-admin) tokens via the sso-broker role; scopeGuard enforces
  path prefix on top of the OpenBao policy. Client auth-token stripped.
- vault UI renamed (vaultwarden.ejs -> vault.ejs), /vault route auth-gated,
  role-scoped: users see only secret/users/<uid>/, admins get free-form +
  Apps mint tab (secret/apps/<name>/*, token shown once).
- api_conf.js writes via bao-conf.set('sso-manager', ...).
- Remediation: config/*-secrets.js untracked+gitignored, test_plugins.js
  deleted, proxy-secrets.js.example placeholder added. Secrets remain in
  git history; provider-side rotation is the real fix.

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

config/proxy-secrets.js

@@ -1,6 +0,0 @@
-module.exports = {
-    oidc: {
-        clientId: '',
-        clientSecret: '',
-    },
-};

config/proxy-secrets.js.example

@@ -0,0 +1,18 @@
+'use strict';
+
+// Example proxy secrets file. theta-env generates a real ./config/proxy-secrets.js
+// from this shape at setup (with empty clientId/clientSecret), then bootstrap.js
+// writes the SSO-generated OAuth client creds into it AND into OpenBao
+// (secret/proxy/conf). The proxy loads it via @simpleworkjs/conf, then overlays
+// secret/proxy/conf from OpenBao via @simpleworkjs/bao-conf at boot.
+//
+// The real file is gitignored (config/*-secrets.js) — never commit live creds.
+// This .example is tracked to document the expected shape only.
+module.exports = {
+	oidc: {
+		// The SSO registers the proxy as an OAuth client and writes the real
+		// values here (and into OpenBao). "set-me" is the bootstrap placeholder.
+		clientId: 'set-me',
+		clientSecret: 'set-me',
+	},
+};

config/sso-secrets.js

@@ -1,35 +0,0 @@
-'use strict';
-
-// Local per-deployment configuration for this Theta42 instance.
-// This file is gitignored — it contains real secrets and per-deployment
-// values. The committed conf/base.js now ships generic defaults
-// (example.com / localhost); the theta42-specific non-secret values that
-// used to live in base.js have been migrated here so this instance keeps
-// working. New deployments should put their own values here or in app_* env.
-module.exports = {
-        port: 3001,
-        name: 'Theta42 SSO',
-        ldap: {
-                url: 'ldap://10.2.0.54',
-                bindDN: 'cn=admin,dc=theta42,dc=com',
-                bindPassword: 'Tomisgaypalm7',
-                userBase: 'ou=people,dc=theta42,dc=com',
-                groupBase: 'ou=groups,dc=theta42,dc=com',
-        },
-        smtp: {
-                host: 'mail.wgnode.com',
-                user: 'noreply@users.theta42.com',
-                // user: '',
-                pass: 'ZxAsQw!2',
-                from: 'Theta42 Accounts <noreply@users.theta42.com>',
-        },
-        voipms: {
-                username: 'wmantly@gmail.com',
-                password: 'EMjQvAuHhD!d5dm',
-                did:      '9297353350',
-        },
-        oauth: {
-                issuer: 'https://sso.theta42.com',
-                jwtSecret: '09e2501a1c93aef4d5d713c7db17c800c6d7d6f5f9e9cf2efbdfa37549021bf9',
-        },
-};