Add all native dependencies for remaining phases

Batch-install native modules to minimize EAS build credits:
- @maplibre/maplibre-react-native — map view for routes (Phase 3)
- @sentry/react-native — crash reporting and error tracking
- expo-sqlite — offline route storage (Phase 5)
- expo-notifications — push notifications (Phase 7)
- expo-location — GPS for activity recording (future)

All registered as Expo config plugins. Requires one new EAS build
to include the native modules.

Also:
- Use npx eas-cli in build scripts (not global eas)
- Add pnpm dev:ios / dev:android root scripts using eas build:dev
- Fix expo-doctor: add expo-constants, expo-linking, dedupe react

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/mobile/app.config.ts

@@ -34,7 +34,14 @@ export default ({ config }: ConfigContext): ExpoConfig => ({
   web: {
     favicon: "./assets/favicon.png",
   },
-  plugins: ["expo-router", "expo-secure-store", "expo-web-browser"],
+  plugins: [
+    "expo-router",
+    "expo-secure-store",
+    "expo-web-browser",
+    "@maplibre/maplibre-react-native",
+    "@sentry/react-native",
+    "expo-sqlite",
+  ],
   extra: {
     eas: {
       projectId: "93c75cae-fecf-4ce5-8cd8-c823760b12e2",