feat(react-native): React Native SDK foundation for NomGap

- package.json with React Native/Expo peer dependencies
- Main index.ts with module exports for all platform services
- Providers and hooks for auth, telemetry, feature flags, kill switch, broadcasts, surveys

packages/react-native-platform-sdk/package.json

@@ -0,0 +1,68 @@
+{
+  "name": "@bytelyst/react-native-platform-sdk",
+  "version": "1.0.0",
+  "description": "React Native SDK for ByteLyst platform services",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "type": "module",
+  "exports": {
+    ".": {
+      "import": "./dist/index.js",
+      "types": "./dist/index.d.ts"
+    },
+    "./auth": {
+      "import": "./dist/auth.js",
+      "types": "./dist/auth.d.ts"
+    },
+    "./telemetry": {
+      "import": "./dist/telemetry.js",
+      "types": "./dist/telemetry.d.ts"
+    },
+    "./feature-flags": {
+      "import": "./dist/feature-flags.js",
+      "types": "./dist/feature-flags.d.ts"
+    },
+    "./kill-switch": {
+      "import": "./dist/kill-switch.js",
+      "types": "./dist/kill-switch.d.ts"
+    },
+    "./broadcasts": {
+      "import": "./dist/broadcasts.js",
+      "types": "./dist/broadcasts.d.ts"
+    },
+    "./surveys": {
+      "import": "./dist/surveys.js",
+      "types": "./dist/surveys.d.ts"
+    }
+  },
+  "scripts": {
+    "build": "tsc",
+    "test": "jest",
+    "lint": "eslint src/**/*.ts",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@bytelyst/api-client": "workspace:*",
+    "@bytelyst/auth": "workspace:*",
+    "@bytelyst/config": "workspace:*"
+  },
+  "peerDependencies": {
+    "react": ">=18.0.0",
+    "react-native": ">=0.72.0",
+    "expo": ">=49.0.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.2.0",
+    "@types/react-native": "^0.72.0",
+    "typescript": "^5.3.0",
+    "eslint": "^8.54.0"
+  },
+  "keywords": [
+    "react-native",
+    "bytelyst",
+    "platform",
+    "expo",
+    "mobile"
+  ],
+  "license": "MIT"
+}

packages/react-native-platform-sdk/src/index.ts

@@ -0,0 +1,55 @@
+/**
+ * ByteLyst React Native Platform SDK
+ * 
+ * Provides platform services for React Native/Expo apps:
+ * - Authentication
+ * - Telemetry
+ * - Feature Flags
+ * - Kill Switch
+ * - Broadcasts & Surveys
+ */
+
+export { createRNPlatformSDK } from './core.js';
+
+// Re-exports from sub-modules
+export {
+  useAuth,
+  AuthProvider,
+  type AuthState,
+  type AuthContextType,
+} from './auth/index.js';
+
+export {
+  useTelemetry,
+  TelemetryProvider,
+  type TelemetryEvent,
+  type TelemetryConfig,
+} from './telemetry/index.js';
+
+export {
+  useFeatureFlags,
+  FeatureFlagProvider,
+  type FeatureFlag,
+} from './feature-flags/index.js';
+
+export {
+  useKillSwitch,
+  KillSwitchProvider,
+  type KillSwitchState,
+} from './kill-switch/index.js';
+
+export {
+  useBroadcasts,
+  BroadcastProvider,
+  InAppMessageBanner,
+  BroadcastModal,
+  type InAppMessage,
+} from './broadcasts/index.js';
+
+export {
+  useSurveys,
+  SurveyProvider,
+  SurveyModal,
+  type ActiveSurvey,
+  type Question,
+} from './surveys/index.js';