Implement RBAC Phase 52: add server-side role & permission handlers and wire API routes, plus frontend UI, styles and translations.
Server: new role_handlers.go exposing endpoints to list roles, get effective role permissions, list/set/delete role permission overrides; routes registered in server.go with permission checks (PermUserView / PermServerConfig). Protects super-admin defaults and validates inputs.
Frontend (management & web UI): add permissions page assets (CSS, JS, view), add i18n strings for en/pl/zh, update sidebar to filter items by canView, show user role badge in topbar and empty access-denied state when no permission. Add role badges styling in users.css and small UX/i18n improvements in organizationDetail.js.
Also several route and service adjustments to support the new permissions UI. This change introduces RBAC UI/API plumbing for managing role-based permissions and overrides.
Bump to v2.3.0 and switch to Node.js web console as the primary console (Flask deprecated). Add comprehensive security and feature updates: CSRF protection, session-fixation prevention, timing-safe auth, WebSocket auth, TOTP 2FA, operator/admin roles, address-book sync, desktop connect (URI handler), and SSL certificate configuration in installers. Introduce a dedicated RustDesk Client API (WAN port 21121) and related web-nodejs middleware, routes, views, protos, and client JS (rdclient) plus vendor libs. Add developer tooling and scripts (dev_modules), update hbbs-patch-v2 Rust sources, README and changelog/docs, and ignore Node.js artifacts in .gitignore.
Introduce a new Node.js-based web console (Express + EJS + better-sqlite3) under web-nodejs/ and add installer support to choose between Node.js and the legacy Flask console. Update interactive ALL-IN-ONE installers (betterdesk.sh, betterdesk.ps1) with flags/options for --nodejs/--flask, automatic Node.js installation, migration logic, enhanced service handling and diagnostics. Bump VERSION to 2.2.0 and update README and project docs (.github/copilot-instructions.md) to reflect the new console, usage examples, and Docker/docs changes. Many new web-nodejs files and supporting middleware/services/routes/views/static assets were added to support the new console.
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