Marketing Hub: RBAC, i18n (AR/EN), tasks overhaul, team/user merge, tutorial

Features:
- Full RBAC with 3 roles (superadmin/manager/contributor)
- Ownership tracking on posts, tasks, campaigns, projects
- Task system: assign to anyone, filter combobox, visibility scoping
- Team members merged into users table (single source of truth)
- Post thumbnails on kanban cards from attachments
- Publication link validation before publishing
- Interactive onboarding tutorial with Settings restart
- Full Arabic/English i18n with RTL layout support
- Language toggle in sidebar, IBM Plex Sans Arabic font
- Brand-based visibility filtering for non-superadmins
- Manager can only create contributors
- Profile completion flow for new users
- Cookie-based sessions (express-session + SQLite)

server/node_modules/es-errors/test/index.js

@@ -0,0 +1,19 @@
+'use strict';
+
+var test = require('tape');
+
+var E = require('../');
+var R = require('../range');
+var Ref = require('../ref');
+var S = require('../syntax');
+var T = require('../type');
+
+test('errors', function (t) {
+	t.equal(E, Error);
+	t.equal(R, RangeError);
+	t.equal(Ref, ReferenceError);
+	t.equal(S, SyntaxError);
+	t.equal(T, TypeError);
+
+	t.end();
+});