chore: add mobile app

mobile/app.json

@@ -0,0 +1,45 @@
+{
+  "expo": {
+    "name": "mobile",
+    "slug": "mobile",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "newArchEnabled": true,
+    "splash": {
+      "image": "./assets/splash-icon.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "ios": {
+      "supportsTablet": true,
+      "bundleIdentifier": "com.anonymous.mobile"
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      },
+      "edgeToEdgeEnabled": true,
+      "predictiveBackGestureEnabled": false,
+      "package": "com.anonymous.mobile"
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    },
+    "plugins": [
+      "expo-font",
+      "expo-router",
+      [
+        "expo-notifications",
+        {
+          "icon": "./assets/icon.png",
+          "color": "#7C3AED",
+          "defaultChannel": "orders",
+          "sounds": []
+        }
+      ]
+    ]
+  }
+}