chore(watch): automate SentrySPM integration via post-prebuild script

AGENTS.md

@@ -8,13 +8,14 @@ Swimming workout tracker with Apple Watch and WearOS companion apps. Expo 57 + R
 npx expo start              # Dev server
 npx expo run:ios            # Build & run on iOS
 npx expo prebuild -p ios    # Regenerate ios/ dir (safe — targets/ persists)
+npx expo prebuild -p ios && node scripts/add-sentry-watch.js  # Prebuild + add SentrySPM to watch target
 npx drizzle-kit generate    # Regenerate SQL migrations after schema changes
 ```
 
 **WearOS:**
 ```bash
-./scripts/build-wearos.sh debug    # Build debug APK
-./scripts/build-wearos.sh release  # Build release APK
+./scripts/build-wearos.sh debug    # Build debug APK (reads version from app.json)
+./scripts/build-wearos.sh release  # Build release APK (reads version from app.json)
 ./scripts/generate-wearos-icon.sh assets/icon.png  # Generate launcher icons
 ```
 
@@ -58,6 +59,7 @@ targets/wearos/               # WearOS app (Kotlin/Compose) — survives prebuil
 - WCSession for real-time messaging, `transferUserInfo` for reliable offline sync
 - HealthKit for swim workout tracking (indoor swimming)
 - Swift types `StoredWorkout`, `StoredSet`, `CompletedLap` in `WorkoutManager.swift`
+- SentrySPM: `@bacons/apple-targets` doesn't support `swiftPackages` yet. Run `node scripts/add-sentry-watch.js` after `expo prebuild` to add it automatically. For EAS builds, this runs automatically via the `eas-build-post-install` hook in package.json.
 
 ## WearOS Target