TUI Renderer, Element Types, and Page Updates

README.md

@@ -307,6 +307,10 @@ Supported inline types: `button`, `link`, `tooltip`, `progress`, `output`, `info
   icon: 'mdi:star',             // Optional header icon
   image: '/path/to/image.png',  // Optional card image
   style: 'primary',             // Border accent color
+  display: 'flex',              // flex | grid | block (controls children layout)
+  children: [                   // Optional nested elements
+    { type: 'button', content: 'Action', style: 'primary' }
+  ]
 }
 ```