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/@gar/promisify/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@gar/promisify",
+  "version": "1.1.3",
+  "description": "Promisify an entire class or object",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wraithgar/gar-promisify.git"
+  },
+  "scripts": {
+    "lint": "standard",
+    "lint:fix": "standard --fix",
+    "test": "lab -a @hapi/code -t 100",
+    "posttest": "npm run lint"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "promisify",
+    "all",
+    "class",
+    "object"
+  ],
+  "author": "Gar <gar+npm@danger.computer>",
+  "license": "MIT",
+  "devDependencies": {
+    "@hapi/code": "^8.0.1",
+    "@hapi/lab": "^24.1.0",
+    "standard": "^16.0.3"
+  }
+}