iview/iview-admin ? reverse-engineered prompt

Build me a clean admin dashboard template for a web app using Vue 2 and the iView UI style.

I want it to feel like a real management system, with a login page, logout, a main layout with a sidebar, top bar, breadcrumb, tabs, and a responsive content area. Include permission based navigation so different users can see different menus and pages, plus a few sample pages for common admin tasks like a rich text editor, markdown editor, file upload, sortable tables, search filters, and error pages like 403, 404, and 500.

Please also add basic theme switching, full screen and lock screen controls, a message center, a personal profile page, and simple internationalization support. Make the sidebar collapsible and use dynamic routing so the menu feels realistic. Use placeholder data where needed, keep it polished, and make it easy to extend later. If you need current setup details, check the docs online.