chore: scaffold Expo project with types and utils

app.json

@@ -20,6 +20,10 @@
     },
     "web": {
       "favicon": "./assets/favicon.png"
-    }
+    },
+    "plugins": [
+      "expo-sqlite",
+      "expo-secure-store"
+    ]
   }
 }

package.json

@@ -3,20 +3,34 @@
   "version": "1.0.0",
   "main": "index.ts",
   "dependencies": {
+    "@react-navigation/native": "^7.3.4",
+    "@react-navigation/native-stack": "^7.17.6",
     "expo": "~56.0.12",
+    "expo-secure-store": "~56.0.4",
+    "expo-sqlite": "~56.0.5",
     "expo-status-bar": "~56.0.4",
     "react": "19.2.3",
-    "react-native": "0.85.3"
+    "react-native": "0.85.3",
+    "react-native-chart-kit": "^7.0.1",
+    "react-native-safe-area-context": "~5.7.0",
+    "react-native-screens": "4.25.2",
+    "react-native-svg": "15.15.4"
   },
   "devDependencies": {
+    "@types/jest": "^30.0.0",
     "@types/react": "~19.2.2",
+    "jest-expo": "^56.0.5",
     "typescript": "~6.0.3"
   },
   "scripts": {
     "start": "expo start",
     "android": "expo start --android",
     "ios": "expo start --ios",
-    "web": "expo start --web"
+    "web": "expo start --web",
+    "test": "jest"
+  },
+  "jest": {
+    "preset": "jest-expo"
   },
   "private": true
 }

src/types.ts

@@ -0,0 +1,23 @@
+export type SyncStatus = 'local' | 'synced'
+
+export type Measurement = {
+  id: string
+  weight: number
+  bmi: number
+  bodyFatPercentage: number
+  fatMass: number
+  musclePercentage: number
+  muscleMass: number
+  visceralFat: number
+  bmr: number
+  measuredAt: string
+  createdAt: string
+  updatedAt: string
+  syncStatus: SyncStatus
+}
+
+export type WebDAVConfig = {
+  url: string
+  username: string
+  password: string
+}

src/utils/uuid.ts

@@ -0,0 +1,13 @@
+export function generateId(): string {
+  const chars = '0123456789abcdef'
+  const segments = [8, 4, 4, 4, 12]
+  return segments
+    .map(len => {
+      let s = ''
+      for (let i = 0; i < len; i++) {
+        s += chars[Math.floor(Math.random() * 16)]
+      }
+      return s
+    })
+    .join('-')
+}