Fix mobile tracked as regular files (not submodule)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mobile/app.json

@@ -0,0 +1,50 @@
+{
+  "expo": {
+    "name": "Pole Dance Championships",
+    "slug": "poledance-championships",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "newArchEnabled": false,
+    "splash": {
+      "image": "./assets/splash-icon.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#6C3FC5"
+    },
+    "ios": {
+      "supportsTablet": true,
+      "bundleIdentifier": "com.yourorg.poledance",
+      "infoPlist": {
+        "UIBackgroundModes": ["remote-notification"]
+      }
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#6C3FC5"
+      },
+      "package": "com.yourorg.poledance",
+      "edgeToEdgeEnabled": true,
+      "predictiveBackGestureEnabled": false
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    },
+    "plugins": [
+      [
+        "expo-notifications",
+        {
+          "icon": "./assets/icon.png",
+          "color": "#6C3FC5",
+          "defaultChannel": "default"
+        }
+      ]
+    ],
+    "extra": {
+      "eas": {
+        "projectId": "YOUR_EAS_PROJECT_ID"
+      }
+    }
+  }
+}