Sign-up Photo Sheet

Recreate the "Sign-up Photo Sheet" screen in React Native using LumioUI.

Goal: Sign up for a supper club over a photo of the long table, with your initials joining the guest list as you type. Pick dietary needs, then save to see exactly which seat is yours. 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/auth-signup-photo-sheet
```

Or pull just the components: `npx @lumioui/cli add animated-number avatar button chip glass icon image input keyboard-avoiding text`

Native packages:
- react-native-reanimated@^4.0.0
- react-native-safe-area-context@*
- react-native-svg@*

Stack assumptions: Expo SDK 54 / RN 0.81, Reanimated 4, NativeWind v4, TypeScript strict, Expo Go compatible.

## Components — how, where, when

### `animated-number` — Number that moves to each new value as a calm count-up or a roll where only the changed digits turn, set in type or in dot-matrix LEDs whose dots switch on in place. Screen readers announce just the final value, not every step.
- `<AnimatedNumber>` ×1

### `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>` ×1

### `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

### `chip` — Compact pill for filters, suggestions, tags and inputs, in solid, outline and glass styles. Selecting a chip fills it quickly and it settles into place without a bounce.
- `<Chip>` ×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>` ×2

### `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>` ×5

### `image` — Image with a placeholder while it loads, a fallback when it fails, and aspect-ratio handling so your layout doesn’t jump when the picture arrives.
- `<Image>` ×1

### `input` — Labelled text field that lights up on focus, draws a check when you mark the value as good, and gives one quick flicker on error. Supports helper text, icons and a fill-as-you-type underline.
- `<Input>` ×2

### `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

### `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>` ×9

## 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/auth/signup-photo-sheet.tsx` exporting SignupPhotoSheetScreen. 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/auth-signup-photo-sheet
```

The source lands at `screens/auth/signup-photo-sheet.tsx`.

Screen: https://lumioui.com/screens/auth-signup-photo-sheet