API

Add: service api
-  service/
- app.config.js
- app.json.backup

Package:
- react-native-dotenv
- expo-module-scripts

### No Issue

package.json

@@ -45,6 +45,7 @@
     "react": "19.0.0",
     "react-dom": "19.0.0",
     "react-native": "0.79.5",
+    "react-native-dotenv": "^3.4.11",
     "react-native-gesture-handler": "~2.24.0",
     "react-native-international-phone-number": "^0.9.3",
     "react-native-maps": "1.20.1",
@@ -66,6 +67,7 @@
     "@types/react": "~19.0.10",
     "eslint": "^9.25.0",
     "eslint-config-expo": "~9.2.0",
+    "expo-module-scripts": "^4.1.10",
     "typescript": "~5.8.3"
   },
   "private": true