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/http-proxy-agent/dist/index.js

@@ -0,0 +1,14 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const agent_1 = __importDefault(require("./agent"));
+function createHttpProxyAgent(opts) {
+    return new agent_1.default(opts);
+}
+(function (createHttpProxyAgent) {
+    createHttpProxyAgent.HttpProxyAgent = agent_1.default;
+    createHttpProxyAgent.prototype = agent_1.default.prototype;
+})(createHttpProxyAgent || (createHttpProxyAgent = {}));
+module.exports = createHttpProxyAgent;
+//# sourceMappingURL=index.js.map