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/connect-sqlite3/Readme.md

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+# Connect SQLite3
+
+connect-sqlite3 is a SQLite3 session store modeled after the TJ's connect-redis store.
+
+
+## Installation
+```sh
+	  $ npm install connect-sqlite3
+```
+
+## Options
+
+  - `table='sessions'` Database table name
+  - `db='sessionsDB'` Database file name (defaults to table name)
+  - `dir='.'` Directory to save '<db>.db' file
+  - `createDirIfNotExists='false'` Directory 'dir' is created recursively if not exists 
+  - `concurrentDB='false'` Enables [WAL](https://www.sqlite.org/wal.html) mode (defaults to false)
+
+## Usage
+```js
+    var connect = require('connect'),
+        SQLiteStore = require('connect-sqlite3')(connect);
+
+    connect.createServer(
+      connect.cookieParser(),
+      connect.session({ store: new SQLiteStore, secret: 'your secret' })
+    );
+```
+  with express
+```js
+    3.x:
+    var SQLiteStore = require('connect-sqlite3')(express);
+
+    4.x:
+    var session = require('express-session');
+    var SQLiteStore = require('connect-sqlite3')(session);
+
+    app.configure(function() {
+      app.set('views', __dirname + '/views');
+      app.set('view engine', 'ejs');
+      app.use(express.bodyParser());
+      app.use(express.methodOverride());
+      app.use(express.cookieParser());
+      app.use(session({
+        store: new SQLiteStore,
+        secret: 'your secret',
+        cookie: { maxAge: 7 * 24 * 60 * 60 * 1000 } // 1 week
+      }));
+      app.use(app.router);
+      app.use(express.static(__dirname + '/public'));
+    });
+```
+## Test
+```sh
+    $ npm test
+```