Prototyper UI — Animation Conventions

All animation decisions for Prototyper UI components. Patterns first, then lookup tables, then rules, then per-component details.

1. Copy-Paste Patterns

These five patterns cover ~95% of animation work. Copy the exact class strings.

Pattern A: Positioned Overlay

Used by: Popover, Menu, Tooltip, Select, Combobox, Context Menu, HoverCard, Menubar.