use-ui 0.1.0

Feature-gated facade crate for RustUse framework-neutral UI primitives
Documentation
# use-ui

Feature-gated facade crate for RustUse framework-neutral UI primitives.

## Purpose

`use-ui` gives consumers one dependency for the focused UI primitive crates in this workspace. The facade exposes natural modules such as `theme`, `layout`, `interaction`, `affordance`, and `layer` while keeping implementation details in the focused crates.

## Example

```rust
# #[cfg(feature = "full")]
# {
use use_ui::{
    affordance::Affordance,
    interaction::InteractionState,
    layer::LayerRole,
    layout::{Alignment, Direction},
    theme::ThemeMode,
};

let state = InteractionState::Focused;
let direction = Direction::Vertical;
let alignment = Alignment::Center;
let layer = LayerRole::Modal;
let theme = ThemeMode::Dark;
let affordance = Affordance::Clickable;

assert!(state.is_focus_visible_candidate());
assert_eq!(direction, Direction::Vertical);
assert_eq!(alignment, Alignment::Center);
assert!(layer.sits_above(LayerRole::Popover));
assert_eq!(theme, ThemeMode::Dark);
assert_eq!(affordance, Affordance::Clickable);
# }
```

## Main modules

- `design_token`
- `theme`
- `layout`
- `spacing`
- `breakpoint`
- `viewport`
- `component`
- `interaction`
- `focus`
- `affordance`
- `motion`
- `layer`

## Relationship to focused crates

Each module re-exports one focused crate. Disable default features and enable only the modules you need when a narrow facade surface is preferred.