Item Chat

Recreate the "Item Chat" screen in React Native using LumioUI.

Goal: Buyer and seller chat about one listing, with offers sent as cards in the thread. Accepting stamps the card, updates the pinned price to the agreed figure, then brings up Buy now. Match the reference implementation's layout, behavior, and motion exactly — this is a production screen, not a mockup.

## Setup

Fastest path — install the screen plus its component deps:

```bash
npx @lumioui/cli add pro/marketplace-item-chat
```

Or pull just the components: `npx @lumioui/cli add avatar button glass icon keyboard-avoiding pro/lightbox pro/message-bubble pro/quick-replies text typing-indicator`

Native packages:
- react-native-reanimated@*
- react-native-safe-area-context@*
- react-native-svg@*

Stack assumptions: Expo SDK 54 / RN 0.81, Reanimated 4, NativeWind v4, TypeScript strict, dev build required (not Expo Go).

## Components — how, where, when

### `avatar` — Circular profile image with fallback initials and a presence dot. An optional mode shows presence on the photo itself, bright when online and faded when away or offline.
- `<Avatar>` ×3

### `button` — Pill button that presses down under your finger, in eight styles from solid to glass, with a built-in loading state that swaps in place while an action runs.
- `<Button>` ×1

### `glass` — Glass surface for cards and controls: system glass on newer iOS, real refraction on the web and a frosted look elsewhere. Light can gather under your finger, and panes merge on newer iOS and the web.
- `<Glass>` ×1

### `icon` — Icon set drawn on one consistent grid, sized and coloured from your theme. The heart, star and bookmark can fill in place inside their outline, then fade back out.
- `<Icon>` ×7

### `keyboard-avoiding` — Container that lifts your content above the on-screen keyboard on iOS, so fields and message bars never end up hidden behind it. On Android it leaves this to the system’s own resizing.
- `<KeyboardAvoiding>` ×1

### `lightbox` — Photo gallery where any tapped photo grows out of its exact tile into a full-screen viewer, then flies back into the tile of whichever photo is showing when you let it go.
- `<LightboxProvider>` ×1
- `<LightboxImage>` ×1

### `message-bubble` — Chat bubbles in six styles with grouping, swipe-to-reply and long-press actions. Drag the thread to reveal times, hold a message to react, and watch read ticks update in place.
- `<MessageBubble>` ×1

### `quick-replies` — Suggested reply chips that sit above a message composer. Tapping one lights it and can fly it into the conversation as your message, while the other suggestions fade away.
- `<QuickReplies>` ×1

### `text` — Themed type scale from caption to display that follows light and dark mode. Includes a pull-quote style with an accent rule and a quieter dimmed tone for secondary text.
- `<Text>` ×20

### `typing-indicator` — Chat typing indicator with three dots that brighten in turn. When the reply arrives, the bubble grows to fit it and the words appear in reading order.
- `<TypingIndicator>` ×1

## Conventions (non-negotiable)

- Styling via NativeWind `className` with semantic tokens only: `bg-background`, `text-foreground`, `bg-card`, `text-card-foreground`, `bg-secondary`, `bg-muted`, `text-muted-foreground`, `bg-accent`, `bg-destructive`, `border-border`. Hard-coded colors only inside media overlays (`text-white`, `bg-black/N`).
- Motion via the token presets from `@lumioui/core` (`spring.press`, `spring.surface`, `spring.glide`, `timing.fast`, `timing.slow`, …) — no bespoke spring configs or durations.
- Gate transform motion behind `useReducedMotion()`; keep opacity/color feedback, drop travel and overshoot.
- Haptics via `useHaptic()`: `light` on press, `selection` on toggle/select, `warning` on invalid input. Never import expo-haptics directly.
- Press feedback via `usePressAnimation()` (~0.97 scale), not `activeOpacity` tricks.
- a11y: `accessibilityRole` + `accessibilityLabel` on every control, touch targets ≥44pt.
- Entrance choreography: staggered `Mount` wrappers (delay 0/60/120…) so regions land in sequence instead of popping in at once.
- Wrap the screen in `SafeAreaView`; keep dark mode working via the semantic tokens.

## Deliverable

One file: `screens/marketplace/item-chat.tsx` exporting ItemChatScreen. Preserve the props interface — the host app wires the callbacks (navigation, submit handlers) through them.

## Reference implementation

This is a LumioUI Pro item: its source is not published in the docs. Install it with a Pro license key
(set `LUMIO_LICENSE_KEY`; keys are on lumioui.com/account) and read the installed file as the reference:

```bash
npx @lumioui/cli add pro/marketplace-item-chat
```

The source lands at `screens/marketplace/item-chat.tsx`.

Screen: https://lumioui.com/screens/marketplace-item-chat