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/rc/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "rc",
+  "version": "1.2.8",
+  "description": "hardwired configuration loader",
+  "main": "index.js",
+  "browser": "browser.js",
+  "scripts": {
+    "test": "set -e; node test/test.js; node test/ini.js; node test/nested-env-vars.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/dominictarr/rc.git"
+  },
+  "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
+  "keywords": [
+    "config",
+    "rc",
+    "unix",
+    "defaults"
+  ],
+  "bin": "./cli.js",
+  "author": "Dominic Tarr <dominic.tarr@gmail.com> (dominictarr.com)",
+  "dependencies": {
+    "deep-extend": "^0.6.0",
+    "ini": "~1.3.0",
+    "minimist": "^1.2.0",
+    "strip-json-comments": "~2.0.1"
+  }
+}