feat: migrate from NativeWind to react-native-unistyles and add Speechmatics audio

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

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

packages/app/package.json

@@ -17,6 +17,8 @@
     "@react-navigation/elements": "^2.6.3",
     "@react-navigation/native": "^7.1.8",
     "@siteed/expo-audio-studio": "^2.18.1",
+    "@speechmatics/expo-two-way-audio": "^0.1.2",
+    "buffer": "^6.0.3",
     "expo": "^54.0.18",
     "expo-audio": "~1.0.13",
     "expo-av": "^16.0.7",
@@ -37,7 +39,6 @@
     "expo-updates": "~29.0.12",
     "expo-web-browser": "~15.0.8",
     "lucide-react-native": "^0.546.0",
-    "nativewind": "^5.0.0-preview.2",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "react-native": "0.81.4",
@@ -49,18 +50,16 @@
     "react-native-safe-area-context": "~5.6.0",
     "react-native-screens": "~4.16.0",
     "react-native-svg": "^15.14.0",
+    "react-native-unistyles": "^3.0.15",
     "react-native-web": "~0.21.0",
     "react-native-webrtc": "^124.0.7",
     "react-native-worklets": "0.5.1"
   },
   "devDependencies": {
-    "@tailwindcss/postcss": "^4.1.15",
     "@types/react": "~19.2.0",
     "eas-cli": "^16.24.1",
     "eslint": "^9.25.0",
     "eslint-config-expo": "~10.0.0",
-    "postcss": "^8.4.49",
-    "tailwindcss": "^4.1.15",
     "typescript": "~5.9.2"
   },
   "overrides": {