chore: add expo-assistant dependency to example app

- Link expo-assistant module for voice integration testing
- Update package-lock.json with dependency tree

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: shottah

example/package-lock.json

@@ -10,9 +10,10 @@
   },
   "dependencies": {
     "expo": "~54.0.6",
+    "expo-assistant": "file:../../expo-assistant",
+    "expo-focus-menu": "file:..",
     "react": "19.1.0",
-    "react-native": "0.81.4",
-    "expo-focus-menu": "file:.."
+    "react-native": "0.81.4"
   },
   "devDependencies": {
     "@types/react": "~19.1.0",
@@ -24,4 +25,4 @@
       "nativeModulesDir": ".."
     }
   }
-}
+}