Update d-sports-engage-native docs with architecture details

repositories/d-sports-engage-native.mdx

@@ -1,12 +1,12 @@
 ---
 title: "d-sports-engage-native"
-description: "Native iOS and Android app for D-Sports Engage. Expo 54, React Native, Clerk, RevenueCat, Thirdweb."
+description: "Native iOS and Android app for D-Sports Engage. Expo 54, React Native 0.81, Clerk, RevenueCat, Thirdweb."
 icon: "smartphone"
 ---
 
 ## Overview
 
 **d-sports-engage-native** (package name: `engage-native`) is the native mobile app for D-Sports. It mirrors the core PWA experience on iOS and Android: wallet, shop, leaderboard, locker room, and profile.
 
 - **Run:** `bunx expo start` or `bun run start` — then press `a` for Android or `i` for iOS, or scan the QR code with Expo Go.
 
@@ -17,31 +17,78 @@
 | Framework  | Expo 54, React Native 0.81, React 19 |
 | Auth       | Clerk (Expo)              |
 | Payments   | RevenueCat (react-native-purchases) |
 | Web3       | Thirdweb                  |
 | State      | Zustand                   |
 | Storage    | MMKV                      |
 | UI         | Lucide React Native       |
-| Navigation | Expo Router               |
+| Navigation | Expo Router 6.0           |
+| Animations | React Native Reanimated 4.1 |
 | Package    | Bun                       |
 
 ## Features
 
 - **Wallet** — Tokens, holdings, pack opening, crypto checkout (via PWA backend)
 - **Shop** — Collectibles, cart, coin bundles, checkout
 - **Leaderboard** — Rankings and filters
-- **Locker room** — Social feed and engagement
+- **Locker room** — Social feed, daily games (Pick Em, Spin Wheel, Guess the Player), quests, and fan engagement
 - **Profile** — User profile and settings
+- **Settings** — Account, notifications, privacy, accessibility, appearance, audio, data, and support options
+- **Onboarding** — New user onboarding flow
 - **Theme** — Dark/light mode (default dark)
+- **PWA-ready** — Responsive desktop layout, web hover states, keyboard navigation
+
+## Project structure
+
+```tree
+app/
+├── (auth)/              # Login/signup/SSO screens
+├── (onboarding)/        # New user onboarding flow
+├── (tabs)/              # Main tab navigation
+│   ├── wallet.tsx       # Wallet screen
+│   ├── shop.tsx         # Shop screen
+│   ├── leaderboard.tsx  # Leaderboard screen
+│   ├── locker-room.tsx  # Social feed
+│   └── profile.tsx      # User profile
+└── settings/            # Settings pages (account, privacy, notifications, etc.)
+
+components/
+├── wallet/              # Wallet sub-components
+├── shop/                # Shop sub-components
+├── locker-room/         # Locker room components (games, quests, feed)
+├── leaderboard/         # Leaderboard components
+├── settings/            # Settings modals and tabs
+├── layout/              # AppScreen wrapper (responsive web max-width)
+├── ui/                  # Reusable UI primitives
+└── Icon/                # Icon wrapper using lucide-react-native
+
+hooks/
+├── use-wallet-screen.ts # Wallet state and handlers
+├── use-shop-screen.ts   # Shop state and handlers
+└── use-feed-section.ts  # Feed section logic
+
+lib/api/                 # API client modules
+```
+
+## Architecture patterns
+
+- **File-based routing** via Expo Router with route groups `(tabs)`, `(auth)`, `(onboarding)`
+- **Modular screen architecture** — screen files contain only JSX; all state/effects/handlers live in dedicated hooks
+- **Extracted sub-components** — wallet, shop, locker-room, and settings decomposed into component directories with barrel exports
+- **Zustand + MMKV** for global state with synchronous persistence
+- **React Context** for auth, collectibles, navbar visibility
+- **API client layer** in `lib/api/` with MMKV cache fallback
+- **Crypto checkout** via Thirdweb SDK calling PWA backend for on-chain payments (Arbitrum, Ethereum, Polygon)
+- **Path alias** `@/*` maps to project root
 
 ## Getting started
 
 1. Clone the repository and run `bun install`.
 2. Configure environment (Clerk, RevenueCat, Thirdweb, API base URL) per repo README.
 3. Run `bunx expo start`.
 4. For development builds: `bun run build:dev` (EAS) or run with Expo dev client.
 
 The app targets both native and web (responsive) and uses the same backend (d-sports-api) as the PWA for API and checkout flows.
 
 <Card title="Ecosystem overview" icon="map" href="/repositories/ecosystem-overview">
   See how the native app fits with the PWA, site, and Mic'd Up.
 </Card>