feat: implement Haptika PPG and Watch V1

__tests__/App.test.tsx

@@ -4,6 +4,45 @@
 
 import React from 'react';
 import ReactTestRenderer from 'react-test-renderer';
+
+jest.mock('react-native-vision-camera', () => ({
+  Camera: () => null,
+  useCameraDevice: () => undefined,
+  useCameraPermission: () => ({
+    hasPermission: true,
+    requestPermission: jest.fn(async () => true),
+  }),
+  useFrameOutput: () => ({}),
+}));
+
+jest.mock('react-native-worklets', () => ({
+  scheduleOnRN: jest.fn(),
+}));
+
+jest.mock('react-native-haptika-ppg', () => ({
+  haptikaPPG: {
+    startMeasurement: jest.fn(),
+    processFrame: jest.fn(),
+    finishMeasurement: jest.fn(),
+    cancelMeasurement: jest.fn(),
+    getThermalState: jest.fn(() => 'nominal'),
+  },
+  haptikaHealthKit: {
+    isAvailable: jest.fn(() => false),
+    requestReadAuthorization: jest.fn(async () => false),
+    fetchContext: jest.fn(),
+    fetchLatestHeartbeatSeries: jest.fn(),
+  },
+}));
+
+jest.mock('@react-native-async-storage/async-storage', () => ({
+  __esModule: true,
+  default: {
+    getItem: jest.fn(async () => null),
+    setItem: jest.fn(async () => undefined),
+  },
+}));
+
 import App from '../App';
 
 test('renders correctly', async () => {