chore: initialize Expo SDK 55 project with TypeScript

React Native + Expo Router setup with strict TypeScript,
path aliases, and dark-first configuration.

CLAUDE.md

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+# Lively — Live Wallpapers App
+
+## Stack
+- React Native (Expo SDK 55+, New Architecture)
+- TypeScript strict
+- Expo Router v4 (file-based routing)
+- @shopify/react-native-skia v2.6+ (GPU shaders SkSL)
+- react-native-reanimated 3 (animation orchestration)
+- react-native-gesture-handler (touch/drag)
+- Zustand + MMKV (state + persistence)
+- expo-blur (glassmorphism blur backing)
+
+## Architecture
+- `app/` — Expo Router screens (file-based)
+- `src/components/glass/` — Design system glassmorphism
+- `src/shaders/` — SkSL fragment shaders (animations)
+- `src/hooks/` — React hooks (animation, gyroscope, export)
+- `src/stores/` — Zustand stores (wallpaper, settings)
+- `src/services/` — Media access, ML pipeline
+- `src/theme/` — Colors, glass constants, typography, spacing
+- `src/types/` — TypeScript type definitions
+- `modules/` — Expo native modules (Android WallpaperService, iOS Live Photo)
+
+## Conventions
+- Imports: `@/` alias pour `src/`
+- Named exports partout sauf screens (default export)
+- Shaders SkSL compilés via `Skia.RuntimeEffect.Make()`
+- Uniforms standard: resolution, time, intensity, speed + spécifiques
+- État global: Zustand, pas de Context API sauf providers Expo
+
+## Design System
+- Dark-first, glassmorphism
+- Blur backing via expo-blur
+- Bordures `rgba(255,255,255,0.10)` 1px
+- Palette dans `src/theme/colors.ts`
+- Teintes dérivées des images utilisateur, pas de couleurs d'accent vives