Mobile companion app + paired-device backend

New iOS-first companion (Expo SDK 54 + NativeWind v4) with three tabs:
Captures (the hero — floating gold mic, live mic-meter waveform,
expand-row playback), Generate (profile picker + speak + autoplay +
recent), and Voices (searchable profile list).

Pairing (V0): backend mints a one-time token, mobile scans/pastes the
voicebox:// URL, server returns a long-lived bearer it stores only as a
SHA-256 hash. Bearer-or-loopback auth applied to every user-data router
so binding 0.0.0.0 doesn't leak existing endpoints. Loopback callers
(the desktop app) keep their friction-free access.

Desktop Settings → Mobile pane: live host picker (LAN / Tailscale auto-
detected via the App-bundle binary path on macOS), QR rendering,
5-minute expiry countdown, copyable URL fallback, paired-device list
with revoke. Auto-closes when a new device pairs.

just dev now binds the backend to 0.0.0.0 so paired phones can reach
it — and just setup-python pins mlx-audio==0.4.1 + mlx-lm so fresh
Apple Silicon worktrees get a working STT path on first install.

mobile/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "mobile",
+  "version": "1.0.0",
+  "main": "expo-router/entry",
+  "scripts": {
+    "start": "expo start",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web"
+  },
+  "dependencies": {
+    "@tanstack/react-query": "^5.100.5",
+    "expo": "~54.0.33",
+    "expo-audio": "~1.1.1",
+    "expo-camera": "~17.0.10",
+    "expo-constants": "~18.0.13",
+    "expo-linking": "~8.0.11",
+    "expo-router": "~6.0.23",
+    "expo-secure-store": "~15.0.8",
+    "expo-status-bar": "~3.0.9",
+    "lucide-react-native": "^1.11.0",
+    "nativewind": "4.2.3",
+    "react": "19.1.0",
+    "react-native": "0.81.5",
+    "react-native-gesture-handler": "~2.28.0",
+    "react-native-reanimated": "~4.1.1",
+    "react-native-safe-area-context": "~5.6.0",
+    "react-native-screens": "~4.16.0",
+    "react-native-svg": "15.12.1",
+    "zustand": "^5.0.12"
+  },
+  "devDependencies": {
+    "@types/react": "~19.1.0",
+    "prettier-plugin-tailwindcss": "^0.6.0",
+    "tailwindcss": "^3.4.17",
+    "typescript": "~5.9.2"
+  },
+  "private": true
+}